Analysis

  • max time kernel
    292s
  • max time network
    249s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    20-06-2024 23:02

General

  • Target

    aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.exe

  • Size

    4.8MB

  • MD5

    5a533f10b239cefbf099274f03862921

  • SHA1

    da592fed5e1d88339cf4979b3041780dc61fe99a

  • SHA256

    aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122

  • SHA512

    60e8c3e7b2d3e402a7a8a55889671366b7a0e982c7b9cb25e3c11cf4b85d83a4e0ba2bb1596871889d824ff889db87cd62da0759b95b20374d9ba56e427ecba1

  • SSDEEP

    98304:mZpMGuOjq1Hr7EidC1LR5ha450Z8ui47OWY4Rf8aISqSZ+WD4d/7SnJp/C:3GfqVI1Lrw45K247hY4RBhXbD4hGp/C

Malware Config

Extracted

Family

socks5systemz

C2

boudmba.com

http://boudmba.com/search/?q=67e28dd86509f67a4206fe1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa45e8889b5e4fa9281ae978f171ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f87fd15c6eb90

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 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 FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.exe
    "C:\Users\Admin\AppData\Local\Temp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2108
    • C:\Users\Admin\AppData\Local\Temp\is-U38AR.tmp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-U38AR.tmp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp" /SL5="$30130,4769144,54272,C:\Users\Admin\AppData\Local\Temp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2604
      • C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
        "C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2800
      • C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
        "C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe

    Filesize

    2.9MB

    MD5

    5607bbeb141ec116576425691f34acd6

    SHA1

    d7d9f25536b56b095954d1248db8bd9184b540a0

    SHA256

    7976de4dc383f6b159e8c242ca130f91fddfb470287d06a70b45a5918b681563

    SHA512

    0f200399a143fa3a52d0e465af4eeaace46a4f40e1d2028246d8c042978cbc27d6040fe64c24969e39a3df0f8dc046b054ddb7556b903e6ab974c08f641870e8

  • \Users\Admin\AppData\Local\Temp\is-1KM3O.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-1KM3O.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-U38AR.tmp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp

    Filesize

    680KB

    MD5

    984e6b8a7e6fa5cbf5a45904b1defc00

    SHA1

    37ce92d6cf1a117a191d14cc7fa1a6a97c05c967

    SHA256

    3313fd9ad369bdee368d356036858a7fcc6182175a30a92a6b73e41e1b2a5eb7

    SHA512

    55af997bfcc532ff01e593471197555432481587c263eb3777e511c656e030edd6c34edce0778b07e117dae4b9ed18976d2ec5c2fe127511a5f29928223ab7c8

  • memory/2108-73-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2108-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/2108-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2604-17-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2604-64-0x0000000003470000-0x000000000375D000-memory.dmp

    Filesize

    2.9MB

  • memory/2604-76-0x0000000003470000-0x000000000375D000-memory.dmp

    Filesize

    2.9MB

  • memory/2604-74-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2632-79-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-98-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-137-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-75-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-132-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-129-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-82-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-85-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-88-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-91-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-92-0x0000000002280000-0x0000000002322000-memory.dmp

    Filesize

    648KB

  • memory/2632-71-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-101-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-104-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-107-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-110-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-113-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-117-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-120-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-123-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2632-126-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2800-65-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2800-66-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB

  • memory/2800-69-0x0000000000400000-0x00000000006ED000-memory.dmp

    Filesize

    2.9MB