Analysis

  • max time kernel
    293s
  • max time network
    282s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    30-05-2024 22:44

General

  • Target

    34cc2dd0f85e4db270494768f028005f6b02dcf538c6dfa88fb37527c0a30aee.exe

  • Size

    4.7MB

  • MD5

    a6530f7fccf0f218f7a4af9da5cd27a2

  • SHA1

    39cac9c29a3351b06948bb3500af9d35e1cd6f49

  • SHA256

    34cc2dd0f85e4db270494768f028005f6b02dcf538c6dfa88fb37527c0a30aee

  • SHA512

    b8bfedca1cce2963da035400edee8a1f2b5abfe937766e82b8341fb4361c51d80fc59fa7702028819b05b0c42f80c3e48769e48472bdd6b666e89701c14b782a

  • SSDEEP

    98304:m6r2ClteqE0yS/ZjWItTxssJtYkjFTt660tgKVhg9BjiX7:UClthE0dJWcx5JtYQTt65gKVh17

Malware Config

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 2 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\34cc2dd0f85e4db270494768f028005f6b02dcf538c6dfa88fb37527c0a30aee.exe
    "C:\Users\Admin\AppData\Local\Temp\34cc2dd0f85e4db270494768f028005f6b02dcf538c6dfa88fb37527c0a30aee.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2448
    • C:\Users\Admin\AppData\Local\Temp\is-7279U.tmp\34cc2dd0f85e4db270494768f028005f6b02dcf538c6dfa88fb37527c0a30aee.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-7279U.tmp\34cc2dd0f85e4db270494768f028005f6b02dcf538c6dfa88fb37527c0a30aee.tmp" /SL5="$5014E,4628178,54272,C:\Users\Admin\AppData\Local\Temp\34cc2dd0f85e4db270494768f028005f6b02dcf538c6dfa88fb37527c0a30aee.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1108
      • C:\Users\Admin\AppData\Local\Stereo Tool\stereotool.exe
        "C:\Users\Admin\AppData\Local\Stereo Tool\stereotool.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2700
      • C:\Users\Admin\AppData\Local\Stereo Tool\stereotool.exe
        "C:\Users\Admin\AppData\Local\Stereo Tool\stereotool.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2376

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Stereo Tool\stereotool.exe

    Filesize

    2.8MB

    MD5

    b456899e6cdb5365b53ed23f16ada051

    SHA1

    75259f02a9b2ae79e78c63ae0b285d3a56f18f7b

    SHA256

    0da4a4090ea8897d89f1fdef3d70bf0583a3e2482a43bddc734cd15e0473de4d

    SHA512

    539f3fbe5983682d8c200b295b28c09dfadef866b5c601d8424baf9143b1eca164bd828edfe0db6dad5eff1acb551556651399aa03b8206f0d4721e35ea63370

  • \Users\Admin\AppData\Local\Temp\is-7279U.tmp\34cc2dd0f85e4db270494768f028005f6b02dcf538c6dfa88fb37527c0a30aee.tmp

    Filesize

    680KB

    MD5

    8a85b1ddd1106975b1418948a8bc4f9d

    SHA1

    d9f2a539d7bb29c409fba292f65cb38667b6c9da

    SHA256

    1a11e65130222c61879e0f84db1cf506ae75f5087e23cd1f87f9d325878b277d

    SHA512

    512f97cdfbe611b058b4b2472389ef70d712e319f7aa98f01d0f440390a7b6c0783ce5733cf70dd5d89091a264a2a527bed8b5e9c4e2c51c6c9299a8116f0a99

  • \Users\Admin\AppData\Local\Temp\is-VI683.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-VI683.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/1108-79-0x0000000004100000-0x00000000043D9000-memory.dmp

    Filesize

    2.8MB

  • memory/1108-64-0x0000000004100000-0x00000000043D9000-memory.dmp

    Filesize

    2.8MB

  • memory/1108-12-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1108-74-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2376-110-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-92-0x00000000025A0000-0x0000000002642000-memory.dmp

    Filesize

    648KB

  • memory/2376-135-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-71-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-132-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-129-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-75-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-78-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-126-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-82-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-85-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-88-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-91-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-122-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-98-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-101-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-104-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-107-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-119-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-113-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2376-116-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2448-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/2448-1-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2448-73-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2700-66-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2700-65-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2700-69-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB