SYMBOLCOMMON_NAMEaka. SYNONYMS
win.exaramel (Back to overview)

Exaramel

Actor(s): TeleBots


There is no description at this point.

References
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 (20201023 | autogenerated rule brought to you by yara-signator)
rule win_exaramel_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-12-22"
        version = "1"
        description = "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 = "20201222"
        malpedia_hash = "30354d830a29f0fbd3714d93d94dea941d77a130"
        malpedia_version = "20201023"
        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 = { c3 ff37 e8???????? 83c404 5f 5e 33c0 }
            // n = 7, score = 100
            //   c3                   | ret                 
            //   ff37                 | push                dword ptr [edi]
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   33c0                 | xor                 eax, eax

        $sequence_1 = { 50 e8???????? 68???????? 8d85f4fdffff 50 ff15???????? 56 }
            // n = 7, score = 100
            //   50                   | push                eax
            //   e8????????           |                     
            //   68????????           |                     
            //   8d85f4fdffff         | lea                 eax, [ebp - 0x20c]
            //   50                   | push                eax
            //   ff15????????         |                     
            //   56                   | push                esi

        $sequence_2 = { ff15???????? 8b4dfc 8bf8 8d4508 }
            // n = 4, score = 100
            //   ff15????????         |                     
            //   8b4dfc               | mov                 ecx, dword ptr [ebp - 4]
            //   8bf8                 | mov                 edi, eax
            //   8d4508               | lea                 eax, [ebp + 8]

        $sequence_3 = { 8b08 8b411c ffd0 85c0 }
            // n = 4, score = 100
            //   8b08                 | mov                 ecx, dword ptr [eax]
            //   8b411c               | mov                 eax, dword ptr [ecx + 0x1c]
            //   ffd0                 | call                eax
            //   85c0                 | test                eax, eax

        $sequence_4 = { 6a00 6a01 57 ff15???????? 8906 85c0 743c }
            // n = 7, score = 100
            //   6a00                 | push                0
            //   6a01                 | push                1
            //   57                   | push                edi
            //   ff15????????         |                     
            //   8906                 | mov                 dword ptr [esi], eax
            //   85c0                 | test                eax, eax
            //   743c                 | je                  0x3e

        $sequence_5 = { 83c408 85c0 0f85f0000000 8b75fc 83fe01 0f85e6000000 e8???????? }
            // n = 7, score = 100
            //   83c408               | add                 esp, 8
            //   85c0                 | test                eax, eax
            //   0f85f0000000         | jne                 0xf6
            //   8b75fc               | mov                 esi, dword ptr [ebp - 4]
            //   83fe01               | cmp                 esi, 1
            //   0f85e6000000         | jne                 0xec
            //   e8????????           |                     

        $sequence_6 = { 66830907 8d4202 5d c3 6683090c 8d4202 5d }
            // n = 7, score = 100
            //   66830907             | or                  word ptr [ecx], 7
            //   8d4202               | lea                 eax, [edx + 2]
            //   5d                   | pop                 ebp
            //   c3                   | ret                 
            //   6683090c             | or                  word ptr [ecx], 0xc
            //   8d4202               | lea                 eax, [edx + 2]
            //   5d                   | pop                 ebp

        $sequence_7 = { 50 6a01 68000000c0 8d4710 50 ff15???????? 8bf0 }
            // n = 7, score = 100
            //   50                   | push                eax
            //   6a01                 | push                1
            //   68000000c0           | push                0xc0000000
            //   8d4710               | lea                 eax, [edi + 0x10]
            //   50                   | push                eax
            //   ff15????????         |                     
            //   8bf0                 | mov                 esi, eax

        $sequence_8 = { 40 51 50 898594edffff e8???????? 83c408 }
            // n = 6, score = 100
            //   40                   | inc                 eax
            //   51                   | push                ecx
            //   50                   | push                eax
            //   898594edffff         | mov                 dword ptr [ebp - 0x126c], eax
            //   e8????????           |                     
            //   83c408               | add                 esp, 8

        $sequence_9 = { 83c408 c785ccfcffff00002000 c785d0fcffff00000200 c785e0fcffff00000000 c785e4fcffff00000000 ff15???????? }
            // n = 6, score = 100
            //   83c408               | add                 esp, 8
            //   c785ccfcffff00002000     | mov    dword ptr [ebp - 0x334], 0x200000
            //   c785d0fcffff00000200     | mov    dword ptr [ebp - 0x330], 0x20000
            //   c785e0fcffff00000000     | mov    dword ptr [ebp - 0x320], 0
            //   c785e4fcffff00000000     | mov    dword ptr [ebp - 0x31c], 0
            //   ff15????????         |                     

    condition:
        7 of them and filesize < 294912
}
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