Analysis

  • max time kernel
    151s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    22-11-2021 12:51

General

  • Target

    d9552a15a61f255df3206b63ee0383be.exe

  • Size

    554KB

  • MD5

    d9552a15a61f255df3206b63ee0383be

  • SHA1

    7c76e2edcf184b90d40003dac71b08e3a3ed2e8c

  • SHA256

    0cdd906491990c6ba9c24bdd60172057587859a8e649ba7f4b51fece9a0fdac6

  • SHA512

    0ce1db824d226df28177b6e5394fa1f8483333583d8332680d4cf0cfc8627a53d69c1c857b319dd200e0f38bf88d445a4289d78472fe3167cc39ae6a85f21599

Malware Config

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin

    suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin

  • 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d9552a15a61f255df3206b63ee0383be.exe
    "C:\Users\Admin\AppData\Local\Temp\d9552a15a61f255df3206b63ee0383be.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:320
    • C:\Users\Admin\Pictures\Adobe Films\biD0OZHIgKoNAZH8V3gPgiIL.exe
      "C:\Users\Admin\Pictures\Adobe Films\biD0OZHIgKoNAZH8V3gPgiIL.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:1660
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 320 -s 1408
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1848

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\Pictures\Adobe Films\biD0OZHIgKoNAZH8V3gPgiIL.exe

    MD5

    3f22bd82ee1b38f439e6354c60126d6d

    SHA1

    63b57d818f86ea64ebc8566faeb0c977839defde

    SHA256

    265c2ddc8a21e6fa8dfaa38ef0e77df8a2e98273a1abfb575aef93c0cc8ee96a

    SHA512

    b73e8e17e5e99d0e9edfb690ece8b0c15befb4d48b1c4f2fe77c5e3daf01df35858c06e1403a8636f86363708b80123d12122cb821a86b575b184227c760988f

  • \Users\Admin\Pictures\Adobe Films\biD0OZHIgKoNAZH8V3gPgiIL.exe

    MD5

    3f22bd82ee1b38f439e6354c60126d6d

    SHA1

    63b57d818f86ea64ebc8566faeb0c977839defde

    SHA256

    265c2ddc8a21e6fa8dfaa38ef0e77df8a2e98273a1abfb575aef93c0cc8ee96a

    SHA512

    b73e8e17e5e99d0e9edfb690ece8b0c15befb4d48b1c4f2fe77c5e3daf01df35858c06e1403a8636f86363708b80123d12122cb821a86b575b184227c760988f

  • memory/320-55-0x0000000075851000-0x0000000075853000-memory.dmp

    Filesize

    8KB

  • memory/320-56-0x0000000003B70000-0x0000000003CBC000-memory.dmp

    Filesize

    1.3MB

  • memory/1660-58-0x0000000000000000-mapping.dmp

  • memory/1848-60-0x0000000000000000-mapping.dmp

  • memory/1848-61-0x0000000000540000-0x0000000000541000-memory.dmp

    Filesize

    4KB