SYMBOLCOMMON_NAMEaka. SYNONYMS
win.exaramel (Back to overview)

Exaramel

Actor(s): TeleBots


There is no description at this point.

References
2021-04-29ESET ResearchRobert Lipovsky, Matthieu Faou, Tony Anscombe, Andy Garth, Daniel Chromek
@techreport{lipovsky:20210429:eset:ff67b6c, author = {Robert Lipovsky and Matthieu Faou and Tony Anscombe and Andy Garth and Daniel Chromek}, title = {{ESET Industry Report on Government: Targeted but not alone}}, date = {2021-04-29}, institution = {ESET Research}, url = {https://www.welivesecurity.com/wp-content/uploads/2021/04/ESET_Industry_Report_Government.pdf}, language = {English}, urldate = {2021-05-03} } ESET Industry Report on Government: Targeted but not alone
Exaramel Crutch Exaramel HyperBro HyperSSL InvisiMole XDSpy
2021-02-15WiredAndy Greenberg
@online{greenberg:20210215:france:b543876, author = {Andy Greenberg}, title = {{France Ties Russia's Sandworm to a Multiyear Hacking Spree}}, date = {2021-02-15}, organization = {Wired}, url = {https://www.wired.com/story/sandworm-centreon-russia-hack/}, language = {English}, urldate = {2021-02-20} } France Ties Russia's Sandworm to a Multiyear Hacking Spree
Exaramel Exaramel
2021-01-27CERT-FRCERT-FR
@techreport{certfr:20210127:sandword:7f2e586, author = {CERT-FR}, title = {{Sandword Intrusion Set: Campaign Targeting Centreon Ssystems}}, date = {2021-01-27}, institution = {CERT-FR}, url = {https://www.cert.ssi.gouv.fr/uploads/CERTFR-2021-CTI-005.pdf}, language = {English}, urldate = {2021-03-02} } Sandword Intrusion Set: Campaign Targeting Centreon Ssystems
Exaramel PAS Exaramel
2020-01-31Virus BulletinMichal Poslušný, Peter Kálnai
@online{poslun:20200131:rich:c25f156, author = {Michal Poslušný and Peter Kálnai}, title = {{Rich Headers: leveraging this mysterious artifact of the PE format}}, date = {2020-01-31}, organization = {Virus Bulletin}, url = {https://www.virusbulletin.com/virusbulletin/2020/01/vb2019-paper-rich-headers-leveraging-mysterious-artifact-pe-format/}, language = {English}, urldate = {2020-02-03} } Rich Headers: leveraging this mysterious artifact of the PE format
Dridex Exaramel Industroyer Neutrino RCS Sathurbot
2020-01DragosJoe Slowik
@techreport{slowik:202001:threat:d891011, author = {Joe Slowik}, title = {{Threat Intelligence and the Limits of Malware Analysis}}, date = {2020-01}, institution = {Dragos}, url = {https://pylos.co/wp-content/uploads/2020/02/Threat-Intelligence-and-the-Limits-of-Malware-Analysis.pdf}, language = {English}, urldate = {2020-06-10} } Threat Intelligence and the Limits of Malware Analysis
Exaramel Exaramel Industroyer Lookback NjRAT PlugX
2018-10-11ESET ResearchAnton Cherepanov, Robert Lipovsky
@online{cherepanov:20181011:new:8e588c3, author = {Anton Cherepanov and Robert Lipovsky}, title = {{New TeleBots backdoor: First evidence linking Industroyer to NotPetya}}, date = {2018-10-11}, organization = {ESET Research}, url = {https://www.welivesecurity.com/2018/10/11/new-telebots-backdoor-linking-industroyer-notpetya/}, language = {English}, urldate = {2019-11-14} } New TeleBots backdoor: First evidence linking Industroyer to NotPetya
Exaramel EternalPetya Exaramel Industroyer
Yara Rules
[TLP:WHITE] win_exaramel_auto (20210616 | Detects win.exaramel.)
rule win_exaramel_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-06-10"
        version = "1"
        description = "Detects win.exaramel."
        info = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.6.0"
        signator_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.exaramel"
        malpedia_rule_date = "20210604"
        malpedia_hash = "be09d5d71e77373c0f538068be31a2ad4c69cfbd"
        malpedia_version = "20210616"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    /* DISCLAIMER
     * The strings used in this rule have been automatically selected from the
     * disassembly of memory dumps and unpacked files, using YARA-Signator.
     * The code and documentation is published here:
     * https://github.com/fxb-cocacoding/yara-signator
     * As Malpedia is used as data source, please note that for a given
     * number of families, only single samples are documented.
     * This likely impacts the degree of generalization these rules will offer.
     * Take the described generation method also into consideration when you
     * apply the rules in your use cases and assign them confidence levels.
     */


    strings:
        $sequence_0 = { 50 e8???????? 8b75ec 83c414 85c0 7404 }
            // n = 6, score = 100
            //   50                   | push                eax
            //   e8????????           |                     
            //   8b75ec               | mov                 esi, dword ptr [ebp - 0x14]
            //   83c414               | add                 esp, 0x14
            //   85c0                 | test                eax, eax
            //   7404                 | je                  6

        $sequence_1 = { 53 8b5d08 85db 750a b857000780 5b }
            // n = 6, score = 100
            //   53                   | push                ebx
            //   8b5d08               | mov                 ebx, dword ptr [ebp + 8]
            //   85db                 | test                ebx, ebx
            //   750a                 | jne                 0xc
            //   b857000780           | mov                 eax, 0x80070057
            //   5b                   | pop                 ebx

        $sequence_2 = { 50 57 8b11 51 8b8a90000000 ffd1 }
            // n = 6, score = 100
            //   50                   | push                eax
            //   57                   | push                edi
            //   8b11                 | mov                 edx, dword ptr [ecx]
            //   51                   | push                ecx
            //   8b8a90000000         | mov                 ecx, dword ptr [edx + 0x90]
            //   ffd1                 | call                ecx

        $sequence_3 = { ffd3 83c610 85ff 75ef ff75dc e8???????? }
            // n = 6, score = 100
            //   ffd3                 | call                ebx
            //   83c610               | add                 esi, 0x10
            //   85ff                 | test                edi, edi
            //   75ef                 | jne                 0xfffffff1
            //   ff75dc               | push                dword ptr [ebp - 0x24]
            //   e8????????           |                     

        $sequence_4 = { 56 8b750c 8d044502000000 50 e8???????? 89460c 8b45f4 }
            // n = 7, score = 100
            //   56                   | push                esi
            //   8b750c               | mov                 esi, dword ptr [ebp + 0xc]
            //   8d044502000000       | lea                 eax, dword ptr [eax*2 + 2]
            //   50                   | push                eax
            //   e8????????           |                     
            //   89460c               | mov                 dword ptr [esi + 0xc], eax
            //   8b45f4               | mov                 eax, dword ptr [ebp - 0xc]

        $sequence_5 = { 8b5d08 57 68???????? 50 8dbb18020000 57 }
            // n = 6, score = 100
            //   8b5d08               | mov                 ebx, dword ptr [ebp + 8]
            //   57                   | push                edi
            //   68????????           |                     
            //   50                   | push                eax
            //   8dbb18020000         | lea                 edi, dword ptr [ebx + 0x218]
            //   57                   | push                edi

        $sequence_6 = { 8d85eefdffff 68???????? 6800010000 50 ff15???????? 83c410 c685eefcffff00 }
            // n = 7, score = 100
            //   8d85eefdffff         | lea                 eax, dword ptr [ebp - 0x212]
            //   68????????           |                     
            //   6800010000           | push                0x100
            //   50                   | push                eax
            //   ff15????????         |                     
            //   83c410               | add                 esp, 0x10
            //   c685eefcffff00       | mov                 byte ptr [ebp - 0x312], 0

        $sequence_7 = { 8d858cfdffff 6a44 50 c785ecfdffff00000000 33db e8???????? 8d85d0fdffff }
            // n = 7, score = 100
            //   8d858cfdffff         | lea                 eax, dword ptr [ebp - 0x274]
            //   6a44                 | push                0x44
            //   50                   | push                eax
            //   c785ecfdffff00000000     | mov    dword ptr [ebp - 0x214], 0
            //   33db                 | xor                 ebx, ebx
            //   e8????????           |                     
            //   8d85d0fdffff         | lea                 eax, dword ptr [ebp - 0x230]

        $sequence_8 = { 55 8bec 51 56 6802000100 68???????? ff35???????? }
            // n = 7, score = 100
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   51                   | push                ecx
            //   56                   | push                esi
            //   6802000100           | push                0x10002
            //   68????????           |                     
            //   ff35????????         |                     

        $sequence_9 = { 6bd830 8b04bd60dd4100 f644032801 7444 837c0318ff 743d e8???????? }
            // n = 7, score = 100
            //   6bd830               | imul                ebx, eax, 0x30
            //   8b04bd60dd4100       | mov                 eax, dword ptr [edi*4 + 0x41dd60]
            //   f644032801           | test                byte ptr [ebx + eax + 0x28], 1
            //   7444                 | je                  0x46
            //   837c0318ff           | cmp                 dword ptr [ebx + eax + 0x18], -1
            //   743d                 | je                  0x3f
            //   e8????????           |                     

    condition:
        7 of them and filesize < 294912
}
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