Analysis

  • max time kernel
    292s
  • max time network
    248s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    20-06-2024 22:59

General

  • Target

    9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.exe

  • Size

    4.7MB

  • MD5

    b6325df74af5f5e5e7b4838ce53609c1

  • SHA1

    a79fffa55e75d88d4cd139586c5b400fbdbc8f1f

  • SHA256

    9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3

  • SHA512

    3bd3ed1abd651e8552b8d3fb3b678e6c4b66564540896ae3fc54552a798e60b57e53aa3b9471ec8567bfce5cfb69c8ce7ec02533a978b5861b1fb272435e5156

  • SSDEEP

    98304:mWjP0WOtMB+OZ+DFcml0hjDUDhRX2zbfrYabJ:LRIMYOZ2FcZqNmbs0

Malware Config

Extracted

Family

socks5systemz

C2

bvabwoa.com

http://bvabwoa.com/search/?q=67e28dd86a5ba0284308f94b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f071ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f87fd15c4ee96

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\9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.exe
    "C:\Users\Admin\AppData\Local\Temp\9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Users\Admin\AppData\Local\Temp\is-6FIAT.tmp\9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-6FIAT.tmp\9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp" /SL5="$5014E,4673255,54272,C:\Users\Admin\AppData\Local\Temp\9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1628
      • C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning.exe
        "C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2388
      • C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning.exe
        "C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2428

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    2.7MB

    MD5

    61c1f991cb2ede4331845096ab647d7d

    SHA1

    c6ddf2a55cb17a4058eb2e6df01588da9a96e438

    SHA256

    4647112b7dcb85584fdb64f23392101a1e68bbcdc85a00120addf45cda9cf905

    SHA512

    2e258f29da5a1c04a6d31e8a1a0130b400d62ec21f754150c90e05806896650fad04f79a08f0eb8aeaa36a10a9737243d9866e6c3a2eb20b08dd607863c38345

  • \Users\Admin\AppData\Local\Temp\is-6FIAT.tmp\9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp

    Filesize

    680KB

    MD5

    2883ddf6925173ecfb8e9a320997b71f

    SHA1

    5fabceccfcb78c09cd291f7727788b68fe4fd745

    SHA256

    e331e923521bb37183ec3df450330a19a138ac693fdb00ef7d6a4bfdd42c4f8d

    SHA512

    e8fb787977a66c5580e7dc85e1711a152bcd66fa05cfc79be4cf85eda097414bcd82945684b5f9c9126a3abcff111bf58f271bf0189ea6bc632d3126528925ba

  • \Users\Admin\AppData\Local\Temp\is-E1H4Q.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-E1H4Q.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/1628-79-0x0000000003510000-0x00000000037C4000-memory.dmp

    Filesize

    2.7MB

  • memory/1628-64-0x0000000003510000-0x00000000037C4000-memory.dmp

    Filesize

    2.7MB

  • memory/1628-17-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1628-74-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1936-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/1936-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1936-73-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2388-65-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2388-67-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2388-69-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-88-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-107-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-75-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-82-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-85-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-71-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-91-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-92-0x00000000026A0000-0x0000000002742000-memory.dmp

    Filesize

    648KB

  • memory/2428-98-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-101-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-104-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-78-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-110-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-113-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-117-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-120-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-123-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-126-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-129-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-132-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB

  • memory/2428-137-0x0000000000400000-0x00000000006B4000-memory.dmp

    Filesize

    2.7MB