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Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-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://ebiuhve.ua/search/?q=67e28dd86a08a32d155da44d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978f471ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c7e8969b33

http://ebiuhve.ua/search/?q=67e28dd86a08a32d155da44d7c27d78406abdd88be4b12eab517aa5c96bd86e8968645835a8bbc896c58e713bc90c91c36b5281fc235a925ed3e57d6bd974a95129070b611e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee94993cca6c971e

Signatures

  • Detect Socks5Systemz Payload 4 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:3436
    • C:\Users\Admin\AppData\Local\Temp\is-MQ961.tmp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-MQ961.tmp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp" /SL5="$E01C8,1834192,54272,C:\Users\Admin\AppData\Local\Temp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:404
      • 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:4452
      • 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:2240
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4140 --field-trial-handle=2320,i,3025503729105798828,9325691672526736153,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2456

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    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\Poly Glot Edit\polyglot32.exe

      Filesize

      42KB

      MD5

      032a79297f440b0347af94e4f7dd11b1

      SHA1

      80e55aa319eb9dc5accfa47f07e53243006d7a23

      SHA256

      c2a00837c53129ca2cc481b7b46ac75599faf651ce4110246b35a7fde87b0e6c

      SHA512

      9d950272b2d8deec445e9df2de01dd893f95179d8fedc6dbead2c366da0145f0346611d74e03ddfe97d1907d01ebf24d1e9cfdc4032a1fdfcfc37e56af8cd781

    • C:\Users\Admin\AppData\Local\Temp\is-MQ961.tmp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp

      Filesize

      677KB

      MD5

      e3c3ff614a631373b2a2e6d45ea2ac14

      SHA1

      70f42dbed691518993cd86cc803845b68e63151d

      SHA256

      ef6a7f6238c4f5042a7c806a6edf5fb21c24dead0e3bda36eadaf1fc121a0116

      SHA512

      a206357efbc6a257ce88ffd9a022d8133c6a8cf2c44796f3a80967e71cb9a144643146106f94ff7e5bac4aadf50f959d2e2783a2ad11a7ed7ca123d463486545

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

      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • memory/404-50-0x00000000006A0000-0x00000000006A1000-memory.dmp

      Filesize

      4KB

    • memory/404-7-0x00000000006A0000-0x00000000006A1000-memory.dmp

      Filesize

      4KB

    • memory/404-48-0x0000000000400000-0x00000000004B8000-memory.dmp

      Filesize

      736KB

    • memory/2240-76-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/2240-63-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/2240-98-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/2240-95-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/2240-46-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/2240-91-0x0000000000930000-0x00000000009D2000-memory.dmp

      Filesize

      648KB

    • memory/2240-90-0x0000000000930000-0x00000000009D2000-memory.dmp

      Filesize

      648KB

    • memory/2240-49-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/2240-89-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/2240-53-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/2240-54-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/2240-57-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/2240-60-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/2240-86-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/2240-66-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/2240-67-0x0000000000930000-0x00000000009D2000-memory.dmp

      Filesize

      648KB

    • memory/2240-73-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/2240-83-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/2240-77-0x0000000000930000-0x00000000009D2000-memory.dmp

      Filesize

      648KB

    • memory/2240-80-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/3436-0-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/3436-2-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/3436-47-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/4452-40-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/4452-38-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/4452-43-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB

    • memory/4452-39-0x0000000000400000-0x0000000000696000-memory.dmp

      Filesize

      2.6MB