SYMBOLCOMMON_NAMEaka. SYNONYMS
win.turnedup (Back to overview)

TURNEDUP

aka: Notestuk

Actor(s): APT33


There is no description at this point.

References
2019-03-27SymantecCritical Attack Discovery and Intelligence Team
@online{team:20190327:elfin:d90a330, author = {Critical Attack Discovery and Intelligence Team}, title = {{Elfin: Relentless Espionage Group Targets Multiple Organizations in Saudi Arabia and U.S.}}, date = {2019-03-27}, organization = {Symantec}, url = {https://symantec-blogs.broadcom.com/blogs/threat-intelligence/elfin-apt33-espionage}, language = {English}, urldate = {2020-04-21} } Elfin: Relentless Espionage Group Targets Multiple Organizations in Saudi Arabia and U.S.
DarkComet MimiKatz Nanocore RAT NetWire RC pupy Quasar RAT Remcos StoneDrill TURNEDUP APT33
2019-03-27SymantecSecurity Response Attack Investigation Team
@online{team:20190327:elfin:836cc39, author = {Security Response Attack Investigation Team}, title = {{Elfin: Relentless Espionage Group Targets Multiple Organizations in Saudi Arabia and U.S.}}, date = {2019-03-27}, organization = {Symantec}, url = {https://www.symantec.com/blogs/threat-intelligence/elfin-apt33-espionage}, language = {English}, urldate = {2020-01-06} } Elfin: Relentless Espionage Group Targets Multiple Organizations in Saudi Arabia and U.S.
DarkComet Nanocore RAT pupy Quasar RAT Remcos TURNEDUP APT33
2018-04-11CyberbitHod Gavriel, Boris Erbesfeld
@online{gavriel:20180411:new:9ed9a94, author = {Hod Gavriel and Boris Erbesfeld}, title = {{New ‘Early Bird’ Code Injection Technique Discovered}}, date = {2018-04-11}, organization = {Cyberbit}, url = {https://www.cyberbit.com/new-early-bird-code-injection-technique-discovered/}, language = {English}, urldate = {2020-08-21} } New ‘Early Bird’ Code Injection Technique Discovered
TURNEDUP
2017-09-20FireEyeJacqueline O’Leary, Josiah Kimble, Kelli Vanderlee, Nalani Fraser
@online{oleary:20170920:insights:27e8253, author = {Jacqueline O’Leary and Josiah Kimble and Kelli Vanderlee and Nalani Fraser}, title = {{Insights into Iranian Cyber Espionage: APT33 Targets Aerospace and Energy Sectors and has Ties to Destructive Malware}}, date = {2017-09-20}, organization = {FireEye}, url = {https://www.fireeye.com/blog/threat-research/2017/09/apt33-insights-into-iranian-cyber-espionage.html}, language = {English}, urldate = {2019-12-20} } Insights into Iranian Cyber Espionage: APT33 Targets Aerospace and Energy Sectors and has Ties to Destructive Malware
DROPSHOT Nanocore RAT NetWire RC SHAPESHIFT TURNEDUP APT33
Yara Rules
[TLP:WHITE] win_turnedup_auto (20201023 | autogenerated rule brought to you by yara-signator)
rule win_turnedup_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.turnedup"
        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 = { c6430401 8a4b05 884dbb 8b4da4 }
            // n = 4, score = 400
            //   c6430401             | mov                 byte ptr [ebx + 4], 1
            //   8a4b05               | mov                 cl, byte ptr [ebx + 5]
            //   884dbb               | mov                 byte ptr [ebp - 0x45], cl
            //   8b4da4               | mov                 ecx, dword ptr [ebp - 0x5c]

        $sequence_1 = { 830801 8b4dd8 394dc0 741a 837dd000 7514 83fbff }
            // n = 7, score = 400
            //   830801               | or                  dword ptr [eax], 1
            //   8b4dd8               | mov                 ecx, dword ptr [ebp - 0x28]
            //   394dc0               | cmp                 dword ptr [ebp - 0x40], ecx
            //   741a                 | je                  0x1c
            //   837dd000             | cmp                 dword ptr [ebp - 0x30], 0
            //   7514                 | jne                 0x16
            //   83fbff               | cmp                 ebx, -1

        $sequence_2 = { 1bf6 f7d6 8d4c2420 23f7 e8???????? 3bf3 }
            // n = 6, score = 400
            //   1bf6                 | sbb                 esi, esi
            //   f7d6                 | not                 esi
            //   8d4c2420             | lea                 ecx, [esp + 0x20]
            //   23f7                 | and                 esi, edi
            //   e8????????           |                     
            //   3bf3                 | cmp                 esi, ebx

        $sequence_3 = { 899c24cc000000 8b38 53 8d4c2428 897c2418 }
            // n = 5, score = 400
            //   899c24cc000000       | mov                 dword ptr [esp + 0xcc], ebx
            //   8b38                 | mov                 edi, dword ptr [eax]
            //   53                   | push                ebx
            //   8d4c2428             | lea                 ecx, [esp + 0x28]
            //   897c2418             | mov                 dword ptr [esp + 0x18], edi

        $sequence_4 = { ffd3 83ec1c 8bcc 6a0f c741140f000000 c7411000000000 68???????? }
            // n = 7, score = 400
            //   ffd3                 | call                ebx
            //   83ec1c               | sub                 esp, 0x1c
            //   8bcc                 | mov                 ecx, esp
            //   6a0f                 | push                0xf
            //   c741140f000000       | mov                 dword ptr [ecx + 0x14], 0xf
            //   c7411000000000       | mov                 dword ptr [ecx + 0x10], 0
            //   68????????           |                     

        $sequence_5 = { b800000000 740e 8a1401 c0ca02 }
            // n = 4, score = 400
            //   b800000000           | mov                 eax, 0
            //   740e                 | je                  0x10
            //   8a1401               | mov                 dl, byte ptr [ecx + eax]
            //   c0ca02               | ror                 dl, 2

        $sequence_6 = { 56 53 8d9424e0000000 52 8d8c241c010000 }
            // n = 5, score = 400
            //   56                   | push                esi
            //   53                   | push                ebx
            //   8d9424e0000000       | lea                 edx, [esp + 0xe0]
            //   52                   | push                edx
            //   8d8c241c010000       | lea                 ecx, [esp + 0x11c]

        $sequence_7 = { 8955c8 897dd8 e8???????? 8b4704 83f8ff 7304 }
            // n = 6, score = 400
            //   8955c8               | mov                 dword ptr [ebp - 0x38], edx
            //   897dd8               | mov                 dword ptr [ebp - 0x28], edi
            //   e8????????           |                     
            //   8b4704               | mov                 eax, dword ptr [edi + 4]
            //   83f8ff               | cmp                 eax, -1
            //   7304                 | jae                 6

        $sequence_8 = { e8???????? 83c404 3bc7 7422 8906 33c9 8908 }
            // n = 7, score = 400
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   3bc7                 | cmp                 eax, edi
            //   7422                 | je                  0x24
            //   8906                 | mov                 dword ptr [esi], eax
            //   33c9                 | xor                 ecx, ecx
            //   8908                 | mov                 dword ptr [eax], ecx

        $sequence_9 = { 53 57 ff15???????? 6a00 6a00 8bf8 8d45fc }
            // n = 7, score = 400
            //   53                   | push                ebx
            //   57                   | push                edi
            //   ff15????????         |                     
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   8bf8                 | mov                 edi, eax
            //   8d45fc               | lea                 eax, [ebp - 4]

    condition:
        7 of them and filesize < 892928
}
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