Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-06-2024 15:12

General

  • Target

    e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe

  • Size

    4.9MB

  • MD5

    5d48aeeb5d7b0b1bffa9fefe76399c99

  • SHA1

    6793364dffef847bd4e37dce174fa769b5844373

  • SHA256

    e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5

  • SHA512

    8242b1469f02821935629f6119c2af66672445bdfd4416c990fd7de9fbead6df35de6cd5219ea7978ae755296e44b6b18c1a6b9858e83cf912bc1c68dd21f8b7

  • SSDEEP

    98304:mCG8f2fktx38UcSfxAdq0ygdITU6Kc8gLJCmw/rdQW/S4GFkgM:vGqYyG2pZ6v6zRomw/hW4u+

Malware Config

Extracted

Family

socks5systemz

C2

bgbhdco.com

http://bgbhdco.com/search/?q=67e28dd86f08f27d120eff4b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1fe8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff612c2e7969233

http://bgbhdco.com/search/?q=67e28dd86f08f27d120eff4b7c27d78406abdd88be4b12eab517aa5c96bd86e9968f44875a8bbc896c58e713bc90c94a36b5281fc235a925ed3e51d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9c9939c56c9e1e

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\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe
    "C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4172
    • C:\Users\Admin\AppData\Local\Temp\is-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp" /SL5="$501CA,4905592,54272,C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1908
      • 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:2516
      • 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:1112

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

    3.0MB

    MD5

    23d16a31a7a558a57af5df3ccad38d0c

    SHA1

    9637c3944e59d68fb4d5a8823f2b9623ec48fabd

    SHA256

    26922abfdf90c48b2ffeaaf77fd4fb28df7aecf7ca585753d0a7f32976b2a4b5

    SHA512

    15de6a6989a221e44645c83560221257d423c6f60fd10f69b18c5fb117e0b44454c46b70b56033ffbdd52d68948ed0808abef8f2d220026fb8f39bfeceed4b61

  • C:\Users\Admin\AppData\Local\Temp\is-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp

    Filesize

    680KB

    MD5

    d127f8888027261f305c5f3f49010ecd

    SHA1

    3c74fca88feb692e6cfc7404ff359b50ee63e3ae

    SHA256

    804c947fa51a838dbaebb328f5470e01df04288de8185ccdf2aad5023c918b05

    SHA512

    bb225a2bf9e347f8c83ecc4ac028c849ccb7aafee814870010a261538c9eadbb7f5ca36ba30c95d84ec01fe0f3a97aadbc0fadf71c5f3018f18632359dba095e

  • C:\Users\Admin\AppData\Local\Temp\is-V403Q.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • memory/1112-96-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/1112-80-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/1112-117-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/1112-114-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/1112-110-0x0000000000910000-0x00000000009B2000-memory.dmp

    Filesize

    648KB

  • memory/1112-109-0x0000000000910000-0x00000000009B2000-memory.dmp

    Filesize

    648KB

  • memory/1112-108-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/1112-68-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/1112-105-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/1112-102-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/1112-71-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/1112-74-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/1112-77-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/1112-99-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/1112-83-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/1112-85-0x0000000000910000-0x00000000009B2000-memory.dmp

    Filesize

    648KB

  • memory/1112-88-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/1112-93-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/1908-13-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1908-70-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2516-65-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/2516-63-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/2516-60-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/2516-59-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/4172-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4172-69-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4172-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB