Analysis

  • max time kernel
    148s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-06-2024 20:14

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

ebuogcv.ua

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 3 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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.exe
    "C:\Users\Admin\AppData\Local\Temp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Users\Admin\AppData\Local\Temp\is-M5MQ4.tmp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-M5MQ4.tmp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp" /SL5="$601E6,4769144,54272,C:\Users\Admin\AppData\Local\Temp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:344
      • 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:2252
      • 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:5020

Network

MITRE ATT&CK Matrix ATT&CK v13

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    2.9MB

    MD5

    5607bbeb141ec116576425691f34acd6

    SHA1

    d7d9f25536b56b095954d1248db8bd9184b540a0

    SHA256

    7976de4dc383f6b159e8c242ca130f91fddfb470287d06a70b45a5918b681563

    SHA512

    0f200399a143fa3a52d0e465af4eeaace46a4f40e1d2028246d8c042978cbc27d6040fe64c24969e39a3df0f8dc046b054ddb7556b903e6ab974c08f641870e8

  • C:\Users\Admin\AppData\Local\Temp\is-H6V8U.tmp\_isetup\_iscrypt.dll
    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-M5MQ4.tmp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp
    Filesize

    680KB

    MD5

    984e6b8a7e6fa5cbf5a45904b1defc00

    SHA1

    37ce92d6cf1a117a191d14cc7fa1a6a97c05c967

    SHA256

    3313fd9ad369bdee368d356036858a7fcc6182175a30a92a6b73e41e1b2a5eb7

    SHA512

    55af997bfcc532ff01e593471197555432481587c263eb3777e511c656e030edd6c34edce0778b07e117dae4b9ed18976d2ec5c2fe127511a5f29928223ab7c8

  • memory/344-10-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/344-70-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2116-69-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2116-3-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB

  • memory/2116-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2252-59-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/2252-60-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/2252-64-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/2252-63-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-71-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-89-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-67-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-74-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-75-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-78-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-81-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-84-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-87-0x0000000000940000-0x00000000009E2000-memory.dmp
    Filesize

    648KB

  • memory/5020-68-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-94-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-97-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-100-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-103-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-106-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-109-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-112-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB

  • memory/5020-115-0x0000000000400000-0x00000000006ED000-memory.dmp
    Filesize

    2.9MB