Analysis

  • max time kernel
    142s
  • max time network
    128s
  • 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 14:54

General

  • Target

    d3d8903b1ca41dfd006e59e1fe837fca814008c35d6aa0e26ef43d5c8ddd09e7.exe

  • Size

    5.1MB

  • MD5

    f32b162be176d794366d31e116647028

  • SHA1

    1e90d18a8b6994704089a7b526644b581f6fe3e0

  • SHA256

    d3d8903b1ca41dfd006e59e1fe837fca814008c35d6aa0e26ef43d5c8ddd09e7

  • SHA512

    810504d86499f6066999355915589fc492e08f70c021f7294826584a80374739597dd6a6e39526769a32aeafd00f952438d0dd705cebf952cba88996273e8451

  • SSDEEP

    98304:m2vho9AZZ2bodhRLt3GEiOMATerjPefQISK8sO9rCq7vrh7AyoHJbn0SL+b:xZo90phLXiOMATsyfuCq7RAFpZy

Malware Config

Extracted

Family

socks5systemz

C2

cccofms.net

http://cccofms.net/search/?q=67e28dd83f5ff27c445aaa4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff612c2e896993b

http://cccofms.net/search/?q=67e28dd83f5ff27c445aaa4e7c27d78406abdd88be4b12eab517aa5c96bd86eb968e4c865a8bbc896c58e713bc90c91b36b5281fc235a925ed3e52d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9c9939ca6c9516

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\d3d8903b1ca41dfd006e59e1fe837fca814008c35d6aa0e26ef43d5c8ddd09e7.exe
    "C:\Users\Admin\AppData\Local\Temp\d3d8903b1ca41dfd006e59e1fe837fca814008c35d6aa0e26ef43d5c8ddd09e7.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:912
    • C:\Users\Admin\AppData\Local\Temp\is-7SNU3.tmp\d3d8903b1ca41dfd006e59e1fe837fca814008c35d6aa0e26ef43d5c8ddd09e7.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-7SNU3.tmp\d3d8903b1ca41dfd006e59e1fe837fca814008c35d6aa0e26ef43d5c8ddd09e7.tmp" /SL5="$40202,5086398,54272,C:\Users\Admin\AppData\Local\Temp\d3d8903b1ca41dfd006e59e1fe837fca814008c35d6aa0e26ef43d5c8ddd09e7.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3104
      • 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:2060
      • 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:2224

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

    f68741498f4a7510c8d294267a0a9bdf

    SHA1

    60bbc09dfcaeca444ff18e24642051964e82d438

    SHA256

    68dd587a8d1bade6f4ec7f5ff498077e42b10c58dfed89fede785f48e76b5782

    SHA512

    624eb41361fe72b97af94eeb0dbb7bef3702c9e487acb2ef8bfaaba26e552983e7f5fface7f5ebbddcfc1fd34fe7b3c92bdfa131f27fba769b9a552107c07d37

  • C:\Users\Admin\AppData\Local\Temp\is-7SNU3.tmp\d3d8903b1ca41dfd006e59e1fe837fca814008c35d6aa0e26ef43d5c8ddd09e7.tmp

    Filesize

    680KB

    MD5

    25b42ff1ba59b8fd3d8b4f6c84ab6079

    SHA1

    fb98a4b754a22154b5d4a5ac26f0e4a613b8b57e

    SHA256

    d9cb25bf245da2ba165e4cf3644fa6456c09586e0d6121e00823b53a80b45915

    SHA512

    98d0669952b686e3a2d035046c0ab92e90864279e712596987b8e9c61ec854240154ff606381eab7ecd8c175f9b9e213581717fe1eb752dab5c1a83cdaae3922

  • C:\Users\Admin\AppData\Local\Temp\is-LFG9G.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • memory/912-70-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/912-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/912-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2060-59-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2060-63-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2060-65-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2060-60-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-76-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-107-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-67-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-119-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-72-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-75-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-116-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-79-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-82-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-85-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-89-0x0000000000AB0000-0x0000000000B52000-memory.dmp

    Filesize

    648KB

  • memory/2224-88-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-95-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-98-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-101-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-104-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-69-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-110-0x0000000000400000-0x000000000073B000-memory.dmp

    Filesize

    3.2MB

  • memory/2224-111-0x0000000000AB0000-0x0000000000B52000-memory.dmp

    Filesize

    648KB

  • memory/2224-112-0x0000000000AB0000-0x0000000000B52000-memory.dmp

    Filesize

    648KB

  • memory/3104-16-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/3104-71-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB