Analysis

  • max time kernel
    141s
  • max time network
    127s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240611-en
  • resource tags

    arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    20-06-2024 23:57

General

  • Target

    767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.exe

  • Size

    4.8MB

  • MD5

    13def02a248a8f9a20fb3e90ba6fd562

  • SHA1

    0e8786a982967693f0a37955959c05ac21a4b853

  • SHA256

    767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f

  • SHA512

    07f59a475d299772b0bed4efbbc34a50fd46637a937a3d944f2fa5d09844123b1f86c486dd5b154386e0fc4bef2d169468b7f9ddad7f5682812013d6f2ac9a93

  • SSDEEP

    98304:mrx2sTCX2PShrne5m3fFr4quUKr1IczAZumgCnjAtrax/8DIN6ll:4HTCNe5v3UKr1HU0mgCnEtyUscll

Malware Config

Extracted

Family

socks5systemz

C2

ceodvxi.net

http://ceodvxi.net/search/?q=67e28dd83f0fa67d125ca51e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1de8889b5e4fa9281ae978f371ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff718c2e89d933b

http://ceodvxi.net/search/?q=67e28dd83f0fa67d125ca51e7c27d78406abdd88be4b12eab517aa5c96bd86e9938148855a8bbc896c58e713bc90c94836b5281fc235a925ed3e50d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9d9339ca679f16

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.exe
    "C:\Users\Admin\AppData\Local\Temp\767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2656
    • C:\Users\Admin\AppData\Local\Temp\is-M9KLC.tmp\767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-M9KLC.tmp\767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp" /SL5="$50074,4823287,54272,C:\Users\Admin\AppData\Local\Temp\767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1048
      • C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
        "C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2416
      • C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
        "C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:760

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe

    Filesize

    2.4MB

    MD5

    427988504aeba8e10e2f86d1edce303c

    SHA1

    0c60fc38cba2a78d4247ac81b2c58b257247cf1b

    SHA256

    e9d5e3b34a7277beaad2250c3cb820f0d49d1125d5b2ed40292959490c56518f

    SHA512

    f9ea22bd9721d4f735cbf7ae6f9075fa4fe4d60c04df9c87534141dd9ea6e0d98dcb948e9ffa76078f5b98227d272bdb34a3f2faeee0a1d6c2c87c31a7219fa9

  • C:\Users\Admin\AppData\Local\Temp\is-4O910.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-M9KLC.tmp\767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp

    Filesize

    680KB

    MD5

    e805fd8d14185debe4999b420e788690

    SHA1

    014b87617a2f2c62530ec2da91a5be0d8078c098

    SHA256

    720ee272d4e0d2c13caaa0051d875437161f82df74152144276e87f694712a3c

    SHA512

    33b68c21ef3f6ea17736ff45881019e363abc2df83ae4c1399bb3b3466199b06731bdd45c0852cad33408b54371cb9a9a574ec3445dd5030f6e56306f1e81dbf

  • memory/760-97-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/760-100-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/760-118-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/760-115-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/760-110-0x0000000002440000-0x00000000024E2000-memory.dmp

    Filesize

    648KB

  • memory/760-111-0x0000000002440000-0x00000000024E2000-memory.dmp

    Filesize

    648KB

  • memory/760-68-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/760-109-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/760-106-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/760-103-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/760-71-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/760-74-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/760-77-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/760-80-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/760-83-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/760-86-0x0000000002440000-0x00000000024E2000-memory.dmp

    Filesize

    648KB

  • memory/760-88-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/760-94-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/1048-7-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1048-70-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2416-63-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/2416-65-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/2416-60-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/2416-59-0x0000000000400000-0x0000000000660000-memory.dmp

    Filesize

    2.4MB

  • memory/2656-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2656-69-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2656-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB