Analysis

  • max time kernel
    292s
  • max time network
    249s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    20-06-2024 22:44

General

  • Target

    4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe

  • Size

    5.1MB

  • MD5

    439a267e6543114a61b0ca36827b565b

  • SHA1

    ea17cedfd622792098b5bed8f87361908a992abf

  • SHA256

    4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c

  • SHA512

    6665c306ec258a422459f39a7793c2cdcefae825a95ee0e7501441886bf16ca76d0e3178a64998d1770036e9c077791af382080c53a9cd7a6adf39ac7cc76831

  • SSDEEP

    98304:msTVFr7sE3Mr30U1SCb2fJJ5WDIL1EFnygVubFwotbfDEjtAfH6H6jEKTK1Gll:jVFckMveZL1gygVu7tbb6KfHj8gll

Malware Config

Extracted

Family

socks5systemz

C2

diwhnwp.info

http://diwhnwp.info/search/?q=67e28dd83955a42b4006aa1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f671ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f87fd12c5ec91

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 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 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe
    "C:\Users\Admin\AppData\Local\Temp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2976
    • C:\Users\Admin\AppData\Local\Temp\is-QK8GL.tmp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QK8GL.tmp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp" /SL5="$30146,5069346,54272,C:\Users\Admin\AppData\Local\Temp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2304
      • 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:2680
      • 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:2468

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    2.6MB

    MD5

    e7876c7103be885e83afcf8b766b0ea2

    SHA1

    080778135a924fb91933926e204e3fdfceb26204

    SHA256

    bba479ab368c2b341afb3f898a0158e979831a32f9d722be56c6c792dbe29a60

    SHA512

    94c992ac6f823a1a16583adeb1f4a0a81a02ceee863c5d6555eb94c6a386279c0df3aab29a89f332e51a6ca913a6bd81baf6697932ae57abbca06e790e0a46d9

  • \Users\Admin\AppData\Local\Temp\is-QK8GL.tmp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp

    Filesize

    680KB

    MD5

    e805fd8d14185debe4999b420e788690

    SHA1

    014b87617a2f2c62530ec2da91a5be0d8078c098

    SHA256

    720ee272d4e0d2c13caaa0051d875437161f82df74152144276e87f694712a3c

    SHA512

    33b68c21ef3f6ea17736ff45881019e363abc2df83ae4c1399bb3b3466199b06731bdd45c0852cad33408b54371cb9a9a574ec3445dd5030f6e56306f1e81dbf

  • \Users\Admin\AppData\Local\Temp\is-S15H1.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-S15H1.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/2304-73-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2304-77-0x00000000033D0000-0x0000000003663000-memory.dmp

    Filesize

    2.6MB

  • memory/2304-16-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2304-63-0x00000000033D0000-0x0000000003663000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-106-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-97-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-70-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-136-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-131-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-74-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-128-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-78-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-81-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-84-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-87-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-90-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-91-0x0000000002210000-0x00000000022B2000-memory.dmp

    Filesize

    648KB

  • memory/2468-125-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-100-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-103-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-122-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-109-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-112-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-116-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2468-119-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2680-68-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2680-65-0x0000000000400000-0x0000000000693000-memory.dmp

    Filesize

    2.6MB

  • memory/2976-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/2976-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2976-72-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB