Analysis

  • max time kernel
    292s
  • max time network
    251s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    20-06-2024 22:38

General

  • Target

    29faa8dd9080b5a26a856d6738eec59cf936249e0a2c53c00af753c28f886193.exe

  • Size

    5.0MB

  • MD5

    b86fc853b8ab3682b78811fe61aaa594

  • SHA1

    4fce0f0eb44dc218eadbb68ccc8d1bd98c00dfd5

  • SHA256

    29faa8dd9080b5a26a856d6738eec59cf936249e0a2c53c00af753c28f886193

  • SHA512

    e1bee00c51e2972340a79c63c61edc49a23f5bb123b47b437e13aac6de50ef4fac088571b0f625eb4671bdb5946139065a6f7b70e881234ef7f82014f5e12d55

  • SSDEEP

    98304:mnrGYnCKL4yZINlowQE7DgO2L1x7d2YcwR2q2UKb3ONqnE6fnUoll:arGUEUINSwQokLh2Yj2WzwE6ll

Malware Config

Extracted

Family

socks5systemz

C2

dtyqbqi.info

http://dtyqbqi.info/search/?q=67e28dd86a5ba0284308f94b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f071ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f87fd12c2ef94

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\29faa8dd9080b5a26a856d6738eec59cf936249e0a2c53c00af753c28f886193.exe
    "C:\Users\Admin\AppData\Local\Temp\29faa8dd9080b5a26a856d6738eec59cf936249e0a2c53c00af753c28f886193.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1792
    • C:\Users\Admin\AppData\Local\Temp\is-LP2R3.tmp\29faa8dd9080b5a26a856d6738eec59cf936249e0a2c53c00af753c28f886193.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-LP2R3.tmp\29faa8dd9080b5a26a856d6738eec59cf936249e0a2c53c00af753c28f886193.tmp" /SL5="$70122,5003080,54272,C:\Users\Admin\AppData\Local\Temp\29faa8dd9080b5a26a856d6738eec59cf936249e0a2c53c00af753c28f886193.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2184
      • 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:2940
      • 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:2880

Network

MITRE ATT&CK Matrix ATT&CK v13

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    2.5MB

    MD5

    373be3acc5b919e890b8a4bcaf89093c

    SHA1

    8f89d411a77ed898d6bef3d41bf79b46888ccdd9

    SHA256

    3f6f1740c22e0c04308a65c4c60ea065b1e907f5e777f3baa32949bd2c4fc91e

    SHA512

    78cb0e417209826758c559167a991c804a01fc740cfdfe5308f1575f9277b4eed02075018803849befa1a0d12ae722ad8ef244140e26a1a1d7c78bdbd8819ed2

  • \Users\Admin\AppData\Local\Temp\is-D8TH0.tmp\_isetup\_iscrypt.dll
    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-D8TH0.tmp\_isetup\_shfoldr.dll
    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-LP2R3.tmp\29faa8dd9080b5a26a856d6738eec59cf936249e0a2c53c00af753c28f886193.tmp
    Filesize

    680KB

    MD5

    e805fd8d14185debe4999b420e788690

    SHA1

    014b87617a2f2c62530ec2da91a5be0d8078c098

    SHA256

    720ee272d4e0d2c13caaa0051d875437161f82df74152144276e87f694712a3c

    SHA512

    33b68c21ef3f6ea17736ff45881019e363abc2df83ae4c1399bb3b3466199b06731bdd45c0852cad33408b54371cb9a9a574ec3445dd5030f6e56306f1e81dbf

  • memory/1792-73-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/1792-3-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB

  • memory/1792-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2184-12-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2184-64-0x00000000032E0000-0x0000000003564000-memory.dmp
    Filesize

    2.5MB

  • memory/2184-79-0x00000000032E0000-0x0000000003564000-memory.dmp
    Filesize

    2.5MB

  • memory/2184-74-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2880-104-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-98-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-137-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-75-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-78-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-132-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-82-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-85-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-88-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-91-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-92-0x0000000002180000-0x0000000002222000-memory.dmp
    Filesize

    648KB

  • memory/2880-71-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-101-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-129-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-107-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-110-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-113-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-117-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-120-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-123-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2880-126-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2940-65-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2940-66-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

  • memory/2940-69-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB