Analysis

  • max time kernel
    161s
  • max time network
    163s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 01:46

General

  • Target

    5b92d1d8c1df0cc42591bc05cb62331a28f54e3566c708a8fd13b00cb76881c2.exe

  • Size

    382KB

  • MD5

    38b5deb16f9cd877a6a7ca7c7434b5ea

  • SHA1

    11051c4a389238fe7e2202cb506a6f23cfa6bfa4

  • SHA256

    5b92d1d8c1df0cc42591bc05cb62331a28f54e3566c708a8fd13b00cb76881c2

  • SHA512

    f1f75b2f2641e09c1ce71b7d442b30169b6335d2e15a6fc9bfcb94ffa6552d4f8783cd6468016789d249e2633332e705631e06ad9ede80c03f87e4a051aee899

Malware Config

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • suricata: ET MALWARE Win32/Spy.Socelars.S CnC Activity M3

    suricata: ET MALWARE Win32/Spy.Socelars.S CnC Activity M3

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b92d1d8c1df0cc42591bc05cb62331a28f54e3566c708a8fd13b00cb76881c2.exe
    "C:\Users\Admin\AppData\Local\Temp\5b92d1d8c1df0cc42591bc05cb62331a28f54e3566c708a8fd13b00cb76881c2.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1120
    • C:\Users\Admin\Pictures\Adobe Films\NiceProcessX64.bmp.exe
      "C:\Users\Admin\Pictures\Adobe Films\NiceProcessX64.bmp.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:1600
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1120 -s 1424
      2⤵
      • Program crash
      PID:1884

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\Pictures\Adobe Films\NiceProcessX64.bmp.exe

    Filesize

    318KB

    MD5

    3f22bd82ee1b38f439e6354c60126d6d

    SHA1

    63b57d818f86ea64ebc8566faeb0c977839defde

    SHA256

    265c2ddc8a21e6fa8dfaa38ef0e77df8a2e98273a1abfb575aef93c0cc8ee96a

    SHA512

    b73e8e17e5e99d0e9edfb690ece8b0c15befb4d48b1c4f2fe77c5e3daf01df35858c06e1403a8636f86363708b80123d12122cb821a86b575b184227c760988f

  • \Users\Admin\Pictures\Adobe Films\NiceProcessX64.bmp.exe

    Filesize

    318KB

    MD5

    3f22bd82ee1b38f439e6354c60126d6d

    SHA1

    63b57d818f86ea64ebc8566faeb0c977839defde

    SHA256

    265c2ddc8a21e6fa8dfaa38ef0e77df8a2e98273a1abfb575aef93c0cc8ee96a

    SHA512

    b73e8e17e5e99d0e9edfb690ece8b0c15befb4d48b1c4f2fe77c5e3daf01df35858c06e1403a8636f86363708b80123d12122cb821a86b575b184227c760988f

  • memory/1120-54-0x00000000753B1000-0x00000000753B3000-memory.dmp

    Filesize

    8KB

  • memory/1120-55-0x000000000062A000-0x0000000000646000-memory.dmp

    Filesize

    112KB

  • memory/1120-56-0x0000000000230000-0x0000000000263000-memory.dmp

    Filesize

    204KB

  • memory/1120-57-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/1120-58-0x00000000038A0000-0x0000000003A60000-memory.dmp

    Filesize

    1.8MB

  • memory/1600-60-0x0000000000000000-mapping.dmp

  • memory/1884-62-0x0000000000000000-mapping.dmp