Analysis

  • max time kernel
    292s
  • max time network
    261s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    20-06-2024 22:53

General

  • Target

    80778461b23578ac2a5e5b40110a3f1612dbf02001269d528e4e6580476623e0.exe

  • Size

    4.8MB

  • MD5

    98cb14d4325de6d38a07fb7fb9ebe487

  • SHA1

    24c9779c361e54200b497a69990c938ca5aa13e5

  • SHA256

    80778461b23578ac2a5e5b40110a3f1612dbf02001269d528e4e6580476623e0

  • SHA512

    4b9f99d15ff3758251fdde2f5e2976033729015bb034c5552d6b7aefd487b9e18fd80adc3a1d0a9cdf8d875e4b15d935b0e3fda12fc5a0e11d48d1068c414804

  • SSDEEP

    98304:mNEuowSLEOK4PopaKe1DfIH0ZMNFamBwLeZZel/n:MjGEOK4oaV1TIUIYmBwHn

Malware Config

Extracted

Family

socks5systemz

C2

eblfxwi.ua

http://eblfxwi.ua/search/?q=67e28dd86c0ca77c400cfe4c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa44e8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff718c2eb959f39

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\80778461b23578ac2a5e5b40110a3f1612dbf02001269d528e4e6580476623e0.exe
    "C:\Users\Admin\AppData\Local\Temp\80778461b23578ac2a5e5b40110a3f1612dbf02001269d528e4e6580476623e0.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4604
    • C:\Users\Admin\AppData\Local\Temp\is-H95KM.tmp\80778461b23578ac2a5e5b40110a3f1612dbf02001269d528e4e6580476623e0.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-H95KM.tmp\80778461b23578ac2a5e5b40110a3f1612dbf02001269d528e4e6580476623e0.tmp" /SL5="$C007C,4830794,54272,C:\Users\Admin\AppData\Local\Temp\80778461b23578ac2a5e5b40110a3f1612dbf02001269d528e4e6580476623e0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:872
      • C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\orangestarsaudioconverter.exe
        "C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\orangestarsaudioconverter.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3540
      • C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\orangestarsaudioconverter.exe
        "C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\orangestarsaudioconverter.exe" -s
        3⤵
        • Executes dropped EXE
        PID:340

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\orangestarsaudioconverter.exe

    Filesize

    2.3MB

    MD5

    b7ed4e0f3091c7fa77cf8006c2168aff

    SHA1

    dd6ce1c7394aba2a290299ea712935f87b414cc3

    SHA256

    0f92c4f90305783a6364bb59c6113a324a60fd3857240421d99a9d088966171b

    SHA512

    3bfc993ff8aa210937e729b69301e34df6b635adc715f9be3c70c21dd14601ee5b33c450a4df0ec63d8a9c574e24f267defcf657613702590ba9b80e288a81d4

  • C:\Users\Admin\AppData\Local\Temp\is-H95KM.tmp\80778461b23578ac2a5e5b40110a3f1612dbf02001269d528e4e6580476623e0.tmp

    Filesize

    680KB

    MD5

    08c5308a61a367d176175cd169fd1e02

    SHA1

    153340b1321627103a2e7d6122b53c3fb527c384

    SHA256

    9e891b18b5afb4f683ca3bea2c2725a6d406aabfe5cf94d7f7b4b42183cf7f42

    SHA512

    63008dfe774eaa6b9eb94eb2db8e6b5f5e6827863a219b5127dcc0eeb4519c04f8c3f4e5f91912ad4822b448976a65403dae6273da8a72986f1ac76bd47eded1

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

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • memory/340-99-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-102-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-129-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-124-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-121-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-118-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-115-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-112-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-68-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-71-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-74-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-77-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-80-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-82-0x00000000008D0000-0x0000000000972000-memory.dmp

    Filesize

    648KB

  • memory/340-85-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-90-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-93-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-96-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-109-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/340-105-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/872-13-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/872-67-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/3540-63-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/3540-60-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/3540-59-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4604-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4604-66-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4604-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB