Analysis

  • max time kernel
    293s
  • max time network
    286s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    30-05-2024 22:47

General

  • Target

    398d7b8aee82bc60010cbe0a6fee08280267d97c73854ca5d24919c512ed89cc.exe

  • Size

    4.7MB

  • MD5

    b3c7e4f8c52230723bbd727e3638e4a5

  • SHA1

    701f94fa55424df50849bf06a3e808d6b3b3a1b4

  • SHA256

    398d7b8aee82bc60010cbe0a6fee08280267d97c73854ca5d24919c512ed89cc

  • SHA512

    461db5588b5b69e444e42bd80ee52301dbf509f90a765c1155e7236b39e81bcd8d02e82a60dcbd8d87137ee3b7000a357b6cc27f8c1190e23af99bf9f09839d3

  • SSDEEP

    98304:m0qzsDm5CN4enWyQ0ZNIfmfKHijuKHWBmr+4NlRbtANBk10DXIyolQ:e4t2eWVc0mfKHijPHWB81NlVtAPk10Df

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\398d7b8aee82bc60010cbe0a6fee08280267d97c73854ca5d24919c512ed89cc.exe
    "C:\Users\Admin\AppData\Local\Temp\398d7b8aee82bc60010cbe0a6fee08280267d97c73854ca5d24919c512ed89cc.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2456
    • C:\Users\Admin\AppData\Local\Temp\is-DMBUJ.tmp\398d7b8aee82bc60010cbe0a6fee08280267d97c73854ca5d24919c512ed89cc.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-DMBUJ.tmp\398d7b8aee82bc60010cbe0a6fee08280267d97c73854ca5d24919c512ed89cc.tmp" /SL5="$400E0,4677919,54272,C:\Users\Admin\AppData\Local\Temp\398d7b8aee82bc60010cbe0a6fee08280267d97c73854ca5d24919c512ed89cc.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2084
      • C:\Users\Admin\AppData\Local\FGaudioConverter\fgaudioconverter.exe
        "C:\Users\Admin\AppData\Local\FGaudioConverter\fgaudioconverter.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2564
      • C:\Users\Admin\AppData\Local\FGaudioConverter\fgaudioconverter.exe
        "C:\Users\Admin\AppData\Local\FGaudioConverter\fgaudioconverter.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2528

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\FGaudioConverter\fgaudioconverter.exe

    Filesize

    2.8MB

    MD5

    5811b31818deae55b0135d91e51ce7e4

    SHA1

    e220764f2724526686512c9e9b5d372692b8f0be

    SHA256

    2ee01123a90c39b237514de2b9338121f616bb0e5dd4ed14385143d3473436a2

    SHA512

    be674bbc95e4f884517cc69c3077532b08f3494077492e9cea72400b2cc246a8161dd1606e7ed27431a2eded8da3c9e79e1b25d58648a0ce15efaa1c38e8ae70

  • \Users\Admin\AppData\Local\Temp\is-8F3TA.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-8F3TA.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-DMBUJ.tmp\398d7b8aee82bc60010cbe0a6fee08280267d97c73854ca5d24919c512ed89cc.tmp

    Filesize

    680KB

    MD5

    73c4ccd27a4e4d2e7a6e3aa5b58dfce1

    SHA1

    0336533f24380362330e9cba68490f49e2566699

    SHA256

    c94d874b8d23a6e00ef7f1d6706a82c17fbfd763205eb24a5ece9c5f1130e89f

    SHA512

    cca454547f32cc60d9ae2d2f4ba1192781efe48ebf0c4ee231f2a7a2501d3b05ddbb31dcb9547ac4d46b987bf55ca97b70741b5ff0a32b8202ff4479c21d6b9d

  • memory/2084-16-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2084-63-0x0000000004240000-0x000000000450F000-memory.dmp

    Filesize

    2.8MB

  • memory/2084-78-0x0000000004240000-0x000000000450F000-memory.dmp

    Filesize

    2.8MB

  • memory/2084-74-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2456-73-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2456-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/2456-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2528-104-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-98-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-135-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-75-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-132-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-79-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-82-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-85-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-88-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-91-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-92-0x0000000002570000-0x0000000002612000-memory.dmp

    Filesize

    648KB

  • memory/2528-71-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-101-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-129-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-107-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-110-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-113-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-116-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-119-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-122-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2528-126-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2564-65-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2564-66-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB

  • memory/2564-69-0x0000000000400000-0x00000000006CF000-memory.dmp

    Filesize

    2.8MB