Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    22-05-2022 18:06

General

  • Target

    File.exe

  • Size

    359KB

  • MD5

    8ae6a3f4e9063b56b2b416af7b5d1c09

  • SHA1

    e4e1f840474ad1e98d44d2de5a867d3d5331a03d

  • SHA256

    cff9a1b58d27045ffbe799d15b1735af2c99dbc233040ad8e1f6be71c821578b

  • SHA512

    bd39fb39dc272a69d67032472ffb2a75c776fe838303abc76deb154126674d031c423c326e6c0ef3b050d2f947620dc7d196322b119763f3ed1ca3c78f281ac9

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.

  • 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
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\File.exe
    "C:\Users\Admin\AppData\Local\Temp\File.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1068
    • 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:324
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1068 -s 1420
      2⤵
      • Program crash
      PID:1400

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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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/324-61-0x0000000000000000-mapping.dmp

  • memory/1068-54-0x0000000000548000-0x0000000000566000-memory.dmp

    Filesize

    120KB

  • memory/1068-55-0x0000000075C51000-0x0000000075C53000-memory.dmp

    Filesize

    8KB

  • memory/1068-57-0x00000000002D0000-0x0000000000305000-memory.dmp

    Filesize

    212KB

  • memory/1068-56-0x0000000000548000-0x0000000000566000-memory.dmp

    Filesize

    120KB

  • memory/1068-58-0x0000000000400000-0x000000000049B000-memory.dmp

    Filesize

    620KB

  • memory/1068-59-0x0000000003750000-0x0000000003910000-memory.dmp

    Filesize

    1.8MB

  • memory/1400-63-0x0000000000000000-mapping.dmp