Analysis

  • max time kernel
    300s
  • max time network
    299s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    20-06-2024 22:56

General

  • Target

    90a8eaf0945334d3a849d39650a702cf61ed8f1a64f551daea96c20c8d41ae86.exe

  • Size

    4.5MB

  • MD5

    67cb3cd9010afc253274a69c5235185f

  • SHA1

    ba9851eee568c65464ce27d57cfb7b750a84696b

  • SHA256

    90a8eaf0945334d3a849d39650a702cf61ed8f1a64f551daea96c20c8d41ae86

  • SHA512

    627485695618c729d08e5a5afb36797ab5786024e673a76e99b2ad2e18cca78c4eb138272cad811b82e32442d778aaaa6324e12fb421426d97b66dad42b6ad43

  • SSDEEP

    98304:mVLUvqo2seSkdrObU97jAwVEOr4DUwJASExAtIK7:ggvqo2vSkpeUFAB6MUwJFdt

Malware Config

Extracted

Family

socks5systemz

C2

bomddix.com

http://bomddix.com/search/?q=67e28dd86c0ca72e110aab177c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978f671ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f87fd15c2ed9d

http://bomddix.com/search/?q=67e28dd86c0ca72e110aab177c27d78406abdd88be4b12eab517aa5c96bd86e99d8644855a8bbc896c58e713bc90c91d36b5281fc235a925ed3e55d6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c8e6979e39cf67

Signatures

  • Detect Socks5Systemz Payload 3 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\90a8eaf0945334d3a849d39650a702cf61ed8f1a64f551daea96c20c8d41ae86.exe
    "C:\Users\Admin\AppData\Local\Temp\90a8eaf0945334d3a849d39650a702cf61ed8f1a64f551daea96c20c8d41ae86.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Users\Admin\AppData\Local\Temp\is-BDVQK.tmp\90a8eaf0945334d3a849d39650a702cf61ed8f1a64f551daea96c20c8d41ae86.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-BDVQK.tmp\90a8eaf0945334d3a849d39650a702cf61ed8f1a64f551daea96c20c8d41ae86.tmp" /SL5="$30144,4452088,54272,C:\Users\Admin\AppData\Local\Temp\90a8eaf0945334d3a849d39650a702cf61ed8f1a64f551daea96c20c8d41ae86.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2200
      • C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning32.exe
        "C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2788
      • C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning32.exe
        "C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning32.exe

    Filesize

    2.3MB

    MD5

    f2d7c11761a1637abfcbdfce14f8173c

    SHA1

    3747abd3a43d8c608891ded7ca4b283a8a12dc58

    SHA256

    7afb65c7aa4ea8acd41501fe3e421e6b6c9995b9d0ccbe3c2212fff618aaeda6

    SHA512

    51653b05d326b6b40fcc336b8d2cf8274698c3657838dd34483bd0f5cb0d9b2c97ad8a3161e5f38783bc1e484a628943ba100010e2687954858e11279b2507f3

  • \Users\Admin\AppData\Local\Temp\is-BDVQK.tmp\90a8eaf0945334d3a849d39650a702cf61ed8f1a64f551daea96c20c8d41ae86.tmp

    Filesize

    680KB

    MD5

    0974ba095ce319c21275c60758122947

    SHA1

    a459f36fc33297d242af213eda9d326967c9bcd5

    SHA256

    b1d3bfec6e0fd3effd9f9c661082d9b8bd8b01cc7168b0ec73d2e1df195362a6

    SHA512

    01bdc7b62f999a2a099277a6caee7e721bb1cb3e9639e955edf412e206ea6de4d7b68cb60c31644869a09c9e28ee02b4b327bf2e3e338dbbe8a2b3537055c7ec

  • \Users\Admin\AppData\Local\Temp\is-HVQC9.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-HVQC9.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/1992-73-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1992-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1992-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/2200-16-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2200-64-0x00000000033B0000-0x0000000003605000-memory.dmp

    Filesize

    2.3MB

  • memory/2200-79-0x00000000033B0000-0x0000000003605000-memory.dmp

    Filesize

    2.3MB

  • memory/2200-74-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2612-113-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-104-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-134-0x0000000002620000-0x00000000026C2000-memory.dmp

    Filesize

    648KB

  • memory/2612-75-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-78-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-133-0x0000000002620000-0x00000000026C2000-memory.dmp

    Filesize

    648KB

  • memory/2612-82-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-85-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-88-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-91-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-92-0x0000000002620000-0x00000000026C2000-memory.dmp

    Filesize

    648KB

  • memory/2612-98-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-101-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-71-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-107-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-110-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-132-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-117-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-120-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-123-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-126-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2612-129-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2788-65-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2788-67-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB

  • memory/2788-69-0x0000000000400000-0x0000000000655000-memory.dmp

    Filesize

    2.3MB