Analysis

  • max time kernel
    142s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-06-2024 13:07

General

  • Target

    6f47a85be9fd6a3dba1393c571fce6b7fa1d8d80355fd0604673bb26e8cc0bd9.exe

  • Size

    4.9MB

  • MD5

    d3b82b0fcfc916616bdaa8abc0ca5533

  • SHA1

    c475fb40a0bbeb50affa577192a49a44100e7493

  • SHA256

    6f47a85be9fd6a3dba1393c571fce6b7fa1d8d80355fd0604673bb26e8cc0bd9

  • SHA512

    925b47f4cac0eedd642ebfde0eb84748e3dc1b9381fe567f819a9ad4c42df2906c1c9106fe3c0b982116092f997b6c0f2b4ed97beaca05a578921dbcc85181cc

  • SSDEEP

    98304:mBKz9BOQJxX0su8oY0AV4udhnJKGpm1iUC5DKrk4qJDCHJ:O4OQJxX1vWPEXfp7N+fMCHJ

Malware Config

Extracted

Family

socks5systemz

C2

ccbnguf.net

http://ccbnguf.net/search/?q=67e28dd83f5aa4794209ff1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff612c2ef9c9933

http://ccbnguf.net/search/?q=67e28dd83f5aa4794209ff1c7c27d78406abdd88be4b12eab517aa5c96bd86ef9c804c895a8bbc896c58e713bc90c91d36b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9c9939cd66951e

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\6f47a85be9fd6a3dba1393c571fce6b7fa1d8d80355fd0604673bb26e8cc0bd9.exe
    "C:\Users\Admin\AppData\Local\Temp\6f47a85be9fd6a3dba1393c571fce6b7fa1d8d80355fd0604673bb26e8cc0bd9.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4104
    • C:\Users\Admin\AppData\Local\Temp\is-SK0D4.tmp\6f47a85be9fd6a3dba1393c571fce6b7fa1d8d80355fd0604673bb26e8cc0bd9.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-SK0D4.tmp\6f47a85be9fd6a3dba1393c571fce6b7fa1d8d80355fd0604673bb26e8cc0bd9.tmp" /SL5="$800E0,4893059,54272,C:\Users\Admin\AppData\Local\Temp\6f47a85be9fd6a3dba1393c571fce6b7fa1d8d80355fd0604673bb26e8cc0bd9.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4936
      • 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:3932
      • 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:4388

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

    996b2aae3843b80bf9254c2094a988bb

    SHA1

    6fad18dc60840cc28825cb142aa2d2f45d139a9c

    SHA256

    0e30d081254cf6f9f8dcbfb77466becdb12665b9821e028a6e5a9904ab6f18bf

    SHA512

    6763d963a7e5bf3c0e7ab3fbfc9141916ed627b2c2fcdaac4e1e2eaa94078f612f29b54e732ceff32d08eb713aa02251129adedca04780178b9fc45e3f98587e

  • C:\Users\Admin\AppData\Local\Temp\is-8F0O3.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-SK0D4.tmp\6f47a85be9fd6a3dba1393c571fce6b7fa1d8d80355fd0604673bb26e8cc0bd9.tmp

    Filesize

    680KB

    MD5

    2620d1ee4c2ea193c4cc310d985e2288

    SHA1

    de6aed97e1aa90a602c746be1d8aba249773c884

    SHA256

    6912e9b9c05e86753dabadc66c64118563ec7fb8905aa943abe288e08dc5524a

    SHA512

    cf39eee2e27d6f944cffda162ff7285d4aa0fd9c70a923426c6e227497f9650c225634d75212a06cb30aa36041b77b0ff10df34ca6560edfea56bbfed46ded2b

  • memory/3932-60-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/3932-59-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/3932-63-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/3932-65-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4104-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/4104-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4104-69-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4388-74-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4388-88-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4388-117-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4388-71-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4388-114-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4388-77-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4388-80-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4388-83-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4388-86-0x0000000000960000-0x0000000000A02000-memory.dmp

    Filesize

    648KB

  • memory/4388-67-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4388-93-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4388-96-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4388-99-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4388-102-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4388-105-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4388-108-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/4388-110-0x0000000000960000-0x0000000000A02000-memory.dmp

    Filesize

    648KB

  • memory/4388-109-0x0000000000960000-0x0000000000A02000-memory.dmp

    Filesize

    648KB

  • memory/4936-12-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4936-70-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB