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Resubmissions

10/11/2021, 14:50

211110-r7nbvaeddr 10

08/11/2021, 16:12

211108-tnmmbahgaj 10

08/11/2021, 15:26

211108-svdsbaccf6 10

08/11/2021, 14:48

211108-r6lfvshdfn 10

Analysis

  • max time kernel
    156s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    10/11/2021, 14:50

General

  • Target

    022e3c30a1504fde93e24b2206f804a923ee9785e4db81a166939a1e7b928b66.exe

  • Size

    403KB

  • MD5

    f957e397e71010885b67f2afe37d8161

  • SHA1

    a8bf84b971b37ac6e7f66c5e5a7e971a7741401e

  • SHA256

    022e3c30a1504fde93e24b2206f804a923ee9785e4db81a166939a1e7b928b66

  • SHA512

    8b5e9cb926fafc295c403c1fce7aa883db3a327e58c3295e9a081a8937bed28e305cca08c2c7d98080818095ea99bb4047e10aa2f61e3e4d6d965aef6d16a4f6

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 3 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\022e3c30a1504fde93e24b2206f804a923ee9785e4db81a166939a1e7b928b66.exe
    "C:\Users\Admin\AppData\Local\Temp\022e3c30a1504fde93e24b2206f804a923ee9785e4db81a166939a1e7b928b66.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Users\Admin\Pictures\Adobe Films\qOvdqyVcqbCorVKkcfUuMRqK.exe
      "C:\Users\Admin\Pictures\Adobe Films\qOvdqyVcqbCorVKkcfUuMRqK.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:1980
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 1412
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1104

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1104-61-0x00000000005C0000-0x00000000005C1000-memory.dmp

    Filesize

    4KB

  • memory/2004-55-0x0000000076231000-0x0000000076233000-memory.dmp

    Filesize

    8KB

  • memory/2004-56-0x0000000003E80000-0x0000000003FCC000-memory.dmp

    Filesize

    1.3MB