Analysis

  • max time kernel
    141s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2024 21:39

General

  • Target

    d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.exe

  • Size

    5.9MB

  • MD5

    3bbcfb33c79725389026472484d4897c

  • SHA1

    9f1159eb12a22555633e808a970acc55cf731e60

  • SHA256

    d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6

  • SHA512

    62f1620bb34c49c4807faf2ccffd94babbed7331d4acdc0d679e55cb7c20f935924ec3cf7fbc5dc26be2846e1f500336da3b6b4dd9f255375a0898145874784e

  • SSDEEP

    98304:4opEggevurPh27HclDdnnlnNdkPXFAT671TlbTczm4Ha/37KPi+:zEgoPhcuDBlnnkP1Z1TlfcKea+

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Socks5systemz family
  • Executes dropped EXE 2 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.

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.exe
    "C:\Users\Admin\AppData\Local\Temp\d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:796
    • C:\Users\Admin\AppData\Local\Temp\is-6DASP.tmp\d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-6DASP.tmp\d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp" /SL5="$400F8,5984934,56832,C:\Users\Admin\AppData\Local\Temp\d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2052
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" pause hd_video_converter_fox_124
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1932
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 pause hd_video_converter_fox_124
          4⤵
          • System Location Discovery: System Language Discovery
          PID:540
      • C:\Users\Admin\AppData\Local\HD Video Converter Fox 1.2.4\hdvideoconverterfox32.exe
        "C:\Users\Admin\AppData\Local\HD Video Converter Fox 1.2.4\hdvideoconverterfox32.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2604

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\HD Video Converter Fox 1.2.4\hdvideoconverterfox32.exe

    Filesize

    4.2MB

    MD5

    38a5caa6469e7844c790877dc2ba35d5

    SHA1

    382bf04501a11d08d9761b16355f274ad37166f2

    SHA256

    bf6f3773b147e3770f9fa26e212805654e416b1350044c97fef0cab6594b6b79

    SHA512

    8dedca7ee2b40fed89498f236c479f2026a6a84c2878eada3c267466bd78e996c3d1d3a97c2d92dc549ae7b946452f884fa91b124e4d1317a0205fdf2a0b0ecd

  • \Users\Admin\AppData\Local\Temp\is-6DASP.tmp\d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp

    Filesize

    692KB

    MD5

    8be3d39aa64a156471598dc6011808a3

    SHA1

    63a9d8e055ee0abc094e50033a4e58606dd05ddc

    SHA256

    fb7a3361a44837240508e08d5f78aee54355466f698da296bfefa4400fa95a5d

    SHA512

    0cfeb497eae905a91fb2f00be4cb9bbe119c2ef71fc0e4859f9ca1143b5c24bd4b7f057af5859304290fc9b23a2e4ae417fa6df1acd4f7538d8e62222c236870

  • \Users\Admin\AppData\Local\Temp\is-POC9K.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-POC9K.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/796-95-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/796-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/796-1-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/2052-8-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2052-88-0x0000000003610000-0x0000000003A40000-memory.dmp

    Filesize

    4.2MB

  • memory/2052-123-0x0000000003610000-0x0000000003A40000-memory.dmp

    Filesize

    4.2MB

  • memory/2052-94-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2604-90-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2604-122-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2604-100-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2604-103-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2604-106-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2604-109-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2604-112-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2604-113-0x0000000002B40000-0x0000000002BE2000-memory.dmp

    Filesize

    648KB

  • memory/2604-119-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2604-97-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2604-91-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2604-126-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2604-129-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2604-132-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2604-135-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2604-139-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2604-142-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB