Analysis

  • max time kernel
    293s
  • max time network
    283s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    30-05-2024 22:45

General

  • Target

    3505c8e89418be9d0902a9ca383bb4dfdc83d8948f2ba30d290ea5ca2581be24.exe

  • Size

    4.9MB

  • MD5

    4e80ebc845c758260a7ee214b2ea53fc

  • SHA1

    5c2ad79e4ed5ad0ea5066c638aa0e806cddc751d

  • SHA256

    3505c8e89418be9d0902a9ca383bb4dfdc83d8948f2ba30d290ea5ca2581be24

  • SHA512

    49490476c88e39736ea7ee26791f2703d74edc1e470fa73b046a47715f369d4d53f376087a3b057822e1f7d0fc2c9de18af359d87431735ad1200686047caa02

  • SSDEEP

    98304:m3IUaYes+AWJ6HsTZvcF1j1ypstXfNRvOuHy9uym:onSMHsTZvg1MsXRmu5R

Malware Config

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 2 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\3505c8e89418be9d0902a9ca383bb4dfdc83d8948f2ba30d290ea5ca2581be24.exe
    "C:\Users\Admin\AppData\Local\Temp\3505c8e89418be9d0902a9ca383bb4dfdc83d8948f2ba30d290ea5ca2581be24.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\Users\Admin\AppData\Local\Temp\is-B6QKD.tmp\3505c8e89418be9d0902a9ca383bb4dfdc83d8948f2ba30d290ea5ca2581be24.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-B6QKD.tmp\3505c8e89418be9d0902a9ca383bb4dfdc83d8948f2ba30d290ea5ca2581be24.tmp" /SL5="$50126,4841857,54272,C:\Users\Admin\AppData\Local\Temp\3505c8e89418be9d0902a9ca383bb4dfdc83d8948f2ba30d290ea5ca2581be24.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2188
      • C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
        "C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2768
      • C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
        "C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2576

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe

    Filesize

    3.0MB

    MD5

    8e92663473ecef75f50ef6eb806f4503

    SHA1

    45cb7c2f4a7c6943446f95a7f2fd49865c6f4517

    SHA256

    1ad354cb550e837fffe9aa6d47f8262bd76fa183d6c3e7c2212729a23c6093aa

    SHA512

    8644cfe2f7137589b46f5e34978bba03b4a510aa23857f541e1e925fd14f2661993ff38cc6f4346010c682b186a1561ea1fb75f660fe45358569794a4420fe1b

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

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-B6QKD.tmp\3505c8e89418be9d0902a9ca383bb4dfdc83d8948f2ba30d290ea5ca2581be24.tmp

    Filesize

    680KB

    MD5

    b70ed3d1bcbe0eb891e7fcd65a6c77e4

    SHA1

    30cf3d962d02a6a985d9adb67c915295568d69fa

    SHA256

    3f93f208a112fac1c2fa79cab9829339bc479d2d6585c2e997465e986da5e6f7

    SHA512

    86197a5309226a26badf73e64935c0c373013694dbbefd7d87129accc4652adafa70e7a6a2b53845d67acdacb8081a14be67d0f63aa2554991572b60cc04ab86

  • memory/2036-73-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2036-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2036-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/2188-12-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2188-64-0x0000000004200000-0x0000000004505000-memory.dmp

    Filesize

    3.0MB

  • memory/2188-76-0x0000000004200000-0x0000000004505000-memory.dmp

    Filesize

    3.0MB

  • memory/2188-74-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2576-104-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-98-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-135-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-75-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-132-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-79-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-82-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-85-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-88-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-91-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-92-0x00000000022A0000-0x0000000002342000-memory.dmp

    Filesize

    648KB

  • memory/2576-71-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-101-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-129-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-107-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-110-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-113-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-116-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-119-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-122-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2576-126-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2768-65-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2768-66-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB

  • memory/2768-69-0x0000000000400000-0x0000000000705000-memory.dmp

    Filesize

    3.0MB