Analysis

  • max time kernel
    141s
  • max time network
    128s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    22-05-2024 01:35

General

  • Target

    5d252b6a4b2ce5be7200b0f8d6b88e0d75718d9758e7c8bee23606e8b8371f7a.exe

  • Size

    5.3MB

  • MD5

    d40f8851f63e3cd69092676b283e8f50

  • SHA1

    a521b7a5906b02cdb4586d2b2dfc1941f008ef69

  • SHA256

    5d252b6a4b2ce5be7200b0f8d6b88e0d75718d9758e7c8bee23606e8b8371f7a

  • SHA512

    9b9b7f4271c862e2639e7578d46a857866f6bcd423c466e6cfd50ab05b18d6a3dd0d9ecea2c2a0434f870415735049a0a1cc1b59d3cc13b40fa86269de3e0a08

  • SSDEEP

    98304:m1HVzfed7+GQ/rwxU3HxdkQ0+h1KH8Q6VUQQSeZn2i2:azfedWkIkQ0dcRVfXwn2i2

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 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\5d252b6a4b2ce5be7200b0f8d6b88e0d75718d9758e7c8bee23606e8b8371f7a.exe
    "C:\Users\Admin\AppData\Local\Temp\5d252b6a4b2ce5be7200b0f8d6b88e0d75718d9758e7c8bee23606e8b8371f7a.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4572
    • C:\Users\Admin\AppData\Local\Temp\is-RC1R4.tmp\5d252b6a4b2ce5be7200b0f8d6b88e0d75718d9758e7c8bee23606e8b8371f7a.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-RC1R4.tmp\5d252b6a4b2ce5be7200b0f8d6b88e0d75718d9758e7c8bee23606e8b8371f7a.tmp" /SL5="$80242,5297132,54272,C:\Users\Admin\AppData\Local\Temp\5d252b6a4b2ce5be7200b0f8d6b88e0d75718d9758e7c8bee23606e8b8371f7a.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4328
      • C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe
        "C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4076
      • C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe
        "C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4964

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe

    Filesize

    2.3MB

    MD5

    98a5805224154bf27ec703d7ccae7eca

    SHA1

    781c11b8ed552fb1a9568ee0322a7e47441d0369

    SHA256

    75faecdd4e2012203bab78e4da43bdfd0638a763d616ea8259eab2463ea6d450

    SHA512

    201a0fed1bc9a7714dfd6e0bed2eff270afa8045876ce0a003f2a5189eb2e8ae76f8dd6980b6713c1316fe66ed0969c4fa3048769024e13e3ffc563da8d7a420

  • C:\Users\Admin\AppData\Local\Temp\is-1TSCP.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-1TSCP.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • C:\Users\Admin\AppData\Local\Temp\is-RC1R4.tmp\5d252b6a4b2ce5be7200b0f8d6b88e0d75718d9758e7c8bee23606e8b8371f7a.tmp

    Filesize

    680KB

    MD5

    3c22f4ba1a54bd7c893cda0d06a453a0

    SHA1

    a7e446f9a63c244326ce97be963e07fe2937c456

    SHA256

    c6bc0aff8501f57e2a6c1e3b297a39a4949cf52f7a167f804145745dbeb63f8c

    SHA512

    387c8babf5557569dab2830332f2bf961477a1aa6e918600f94d02fa2c37ae79000b02cf16eaa073288f42fec8378043f1d3163159d36f82ccc319468a56e21f

  • memory/4076-69-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4076-65-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4076-66-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4076-71-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4328-22-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4328-76-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4572-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/4572-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4572-75-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4964-77-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4964-103-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4964-80-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4964-83-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4964-86-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4964-89-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4964-90-0x0000000002490000-0x0000000002532000-memory.dmp

    Filesize

    648KB

  • memory/4964-95-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4964-100-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4964-74-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4964-106-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4964-109-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4964-112-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4964-115-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4964-116-0x0000000002490000-0x0000000002532000-memory.dmp

    Filesize

    648KB

  • memory/4964-117-0x0000000002490000-0x0000000002532000-memory.dmp

    Filesize

    648KB

  • memory/4964-121-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4964-124-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB