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Analysis

  • max time kernel
    144s
  • max time network
    159s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    25/03/2024, 14:34

General

  • Target

    4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe

  • Size

    2.1MB

  • MD5

    a919a7be89a74990b28ca614eb215caa

  • SHA1

    b8a4f828bcd7c083aa1b1c65b8fbab02b9c75f12

  • SHA256

    4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d

  • SHA512

    b69d70431ee9eb318b93e722dc1564062b106b7b5e539ad5edef041270535ecf0304b0844ee4f15da0c513bdb8af594d9da80b2061dac4c9708ee823b346f9a2

  • SSDEEP

    49152:32tqx2/aldYc68PCaDYpnzGkzlyyLo4mxnQKKEa:mtc0ab/C9akzlDbAp7a

Malware Config

Extracted

Family

socks5systemz

C2

http://bhnxdqi.com/search/?q=67e28dd83e0ff228160df91f7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f571ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe12c7e8969838

Signatures

  • Detect Socks5Systemz Payload 3 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 WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe
    "C:\Users\Admin\AppData\Local\Temp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2380
    • C:\Users\Admin\AppData\Local\Temp\is-6CPB0.tmp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-6CPB0.tmp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp" /SL5="$F0214,1834192,54272,C:\Users\Admin\AppData\Local\Temp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1420
      • C:\Users\Admin\AppData\Local\Poly Glot Edit\polyglot32.exe
        "C:\Users\Admin\AppData\Local\Poly Glot Edit\polyglot32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1460
      • C:\Users\Admin\AppData\Local\Poly Glot Edit\polyglot32.exe
        "C:\Users\Admin\AppData\Local\Poly Glot Edit\polyglot32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3180

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Poly Glot Edit\polyglot32.exe

    Filesize

    2.6MB

    MD5

    7dad002a314fdd2356f9ddb72434a1db

    SHA1

    8d7604779077869abd5f9b2782cd0d8146fe1737

    SHA256

    eb70ccead09aa80331e58f95b7b9eaa65014b39baf2ca335bc1b9fc039df475c

    SHA512

    abdbfa80c3da57538485b681970e99fd374c721b6ead978c01aa169db35fba2e54b9df413eebf0024c9eb84f4edae21ec1b5beaa6a79df46058bac2d4b86cf28

  • C:\Users\Admin\AppData\Local\Temp\is-6CPB0.tmp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp

    Filesize

    677KB

    MD5

    e3c3ff614a631373b2a2e6d45ea2ac14

    SHA1

    70f42dbed691518993cd86cc803845b68e63151d

    SHA256

    ef6a7f6238c4f5042a7c806a6edf5fb21c24dead0e3bda36eadaf1fc121a0116

    SHA512

    a206357efbc6a257ce88ffd9a022d8133c6a8cf2c44796f3a80967e71cb9a144643146106f94ff7e5bac4aadf50f959d2e2783a2ad11a7ed7ca123d463486545

  • C:\Users\Admin\AppData\Local\Temp\is-GG1LI.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • memory/1420-50-0x0000000000610000-0x0000000000611000-memory.dmp

    Filesize

    4KB

  • memory/1420-48-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1420-7-0x0000000000610000-0x0000000000611000-memory.dmp

    Filesize

    4KB

  • memory/1460-39-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/1460-38-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/1460-43-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/1460-53-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/2380-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2380-47-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2380-2-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3180-55-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/3180-70-0x0000000000A90000-0x0000000000B32000-memory.dmp

    Filesize

    648KB

  • memory/3180-54-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/3180-46-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/3180-58-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/3180-61-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/3180-64-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/3180-67-0x0000000000A90000-0x0000000000B32000-memory.dmp

    Filesize

    648KB

  • memory/3180-68-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/3180-49-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/3180-75-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/3180-78-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/3180-79-0x0000000000A90000-0x0000000000B32000-memory.dmp

    Filesize

    648KB

  • memory/3180-82-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/3180-85-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/3180-88-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/3180-91-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/3180-95-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB

  • memory/3180-98-0x0000000000400000-0x0000000000696000-memory.dmp

    Filesize

    2.6MB