Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240611-en
  • resource tags

    arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    25-06-2024 13:38

General

  • Target

    6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.exe

  • Size

    5.1MB

  • MD5

    101f00585e773ec198e3e0721f0d582d

  • SHA1

    c1ca25c1f6e709f61596d2be1843a629b171dd59

  • SHA256

    6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be

  • SHA512

    15c06517403fd1d492b40f3c8a60c392dc6a6087e8b9610e022906b977dc45b9087ed3e7b2091ff8522b766c9f441da2797bb70fb7942400f699a9717402c556

  • SSDEEP

    98304:mkwXtlj7PeddJb7xJvyRgG6P7rTpc91us3KLCZTf9X8oK878t:2Laddz1ymG6P7rtcCSKLCZD93C

Malware Config

Extracted

Family

socks5systemz

C2

ejeojig.ua

http://ejeojig.ua/search/?q=67e28dd8655df07d165afd1f7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff612c2ed92923a

http://ejeojig.ua/search/?q=67e28dd8655df07d165afd1f7c27d78406abdd88be4b12eab517aa5c96bd86e990814d845a8bbc896c58e713bc90c91936b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9c9939cf689e17

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\6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.exe
    "C:\Users\Admin\AppData\Local\Temp\6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4960
    • C:\Users\Admin\AppData\Local\Temp\is-IN2GI.tmp\6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-IN2GI.tmp\6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp" /SL5="$6020A,5052624,54272,C:\Users\Admin\AppData\Local\Temp\6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3220
      • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
        "C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2716
      • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
        "C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2540

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

    Filesize

    3.2MB

    MD5

    9e75cd003585ff2f172a841d41ed6d75

    SHA1

    9d551f43cfeb84d1a585d53d2bdde8e17be436bc

    SHA256

    c576f2f3581928de1e62be3e4efff1b5c5415e89c3bdc0cd5536ce41a781c370

    SHA512

    817c32c8943325d27723274425c4fa5c3fb7f36c52a2c85f8038e956033edf96b5d9340df3238865b706fffd8094b1ba3e940bcc17e2feae24d1b15fe2fac67c

  • C:\Users\Admin\AppData\Local\Temp\is-G3EFT.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-IN2GI.tmp\6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp

    Filesize

    680KB

    MD5

    9a46eeaa9fb1370478ba7108b30aab2b

    SHA1

    045f0a44dd0f4710013a390da2865a2fac04389e

    SHA256

    71693251b98a555e6e01fcabf559218ad137f5de772218631147c3d87fc31820

    SHA512

    89ee61a63303ee11d77596e80e0abec6ede6c1fbba1b6bc6ee50991da335426b4fb0cc7d7a90c3c33d56dda222592a3090e771b9fcaef2f6e5951b78467fef66

  • memory/2540-97-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2540-100-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2540-118-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2540-114-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2540-111-0x0000000000A90000-0x0000000000B32000-memory.dmp

    Filesize

    648KB

  • memory/2540-110-0x0000000000A90000-0x0000000000B32000-memory.dmp

    Filesize

    648KB

  • memory/2540-67-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2540-109-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2540-106-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2540-70-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2540-73-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2540-74-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2540-77-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2540-80-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2540-83-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2540-86-0x0000000000A90000-0x0000000000B32000-memory.dmp

    Filesize

    648KB

  • memory/2540-88-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2540-94-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2540-103-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2716-64-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2716-60-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/2716-59-0x0000000000400000-0x0000000000738000-memory.dmp

    Filesize

    3.2MB

  • memory/3220-10-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/3220-69-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4960-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4960-68-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4960-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB