Overview

overview

10

Static

static

4ac90fcd66...14.exe

windows7_x64

10

4ac90fcd66...14.exe

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    19-11-2021 22:21

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General

  • Target

    4ac90fcd66a546b3d454ac36071cd80628664314.exe

  • Size

    554KB

  • MD5

    2492148eff76c565ffd2f40d9091e947

  • SHA1

    4ac90fcd66a546b3d454ac36071cd80628664314

  • SHA256

    7be418280356c7dc0384328a50904f3cee364185aa7f99e127e511461cd6db5c

  • SHA512

    4fde132cb712716ea62b6fb112575b059cca8bc9a1c257eb414e73fd3bab2ec352b7c9bc5ba5e1fa8b1bbfbf0e00928097720c3dc4add6b6f895afddeb06bd47

Score
10/10
evasionspywarestealersuricatatrojan

Malware Config

Signatures

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

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

    suricata
  • 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.

    spywarestealer
  • 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\4ac90fcd66a546b3d454ac36071cd80628664314.exe
    "C:\Users\Admin\AppData\Local\Temp\4ac90fcd66a546b3d454ac36071cd80628664314.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:996
    • C:\Users\Admin\Pictures\Adobe Films\br7FGBc6KSFHcCPj2yb4C93s.exe
      "C:\Users\Admin\Pictures\Adobe Films\br7FGBc6KSFHcCPj2yb4C93s.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:1624
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 1408
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1444

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1
T1031

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Disabling Security Tools

1
T1089

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\Pictures\Adobe Films\br7FGBc6KSFHcCPj2yb4C93s.exe
    MD5

    3f22bd82ee1b38f439e6354c60126d6d

    SHA1

    63b57d818f86ea64ebc8566faeb0c977839defde

    SHA256

    265c2ddc8a21e6fa8dfaa38ef0e77df8a2e98273a1abfb575aef93c0cc8ee96a

    SHA512

    b73e8e17e5e99d0e9edfb690ece8b0c15befb4d48b1c4f2fe77c5e3daf01df35858c06e1403a8636f86363708b80123d12122cb821a86b575b184227c760988f

    Download Submit
  • \Users\Admin\Pictures\Adobe Films\br7FGBc6KSFHcCPj2yb4C93s.exe
    MD5

    3f22bd82ee1b38f439e6354c60126d6d

    SHA1

    63b57d818f86ea64ebc8566faeb0c977839defde

    SHA256

    265c2ddc8a21e6fa8dfaa38ef0e77df8a2e98273a1abfb575aef93c0cc8ee96a

    SHA512

    b73e8e17e5e99d0e9edfb690ece8b0c15befb4d48b1c4f2fe77c5e3daf01df35858c06e1403a8636f86363708b80123d12122cb821a86b575b184227c760988f

    Download Submit
  • memory/996-55-0x0000000076171000-0x0000000076173000-memory.dmp
    Filesize

    8KB

    Download
  • memory/996-56-0x0000000003A40000-0x0000000003B8C000-memory.dmp
    Filesize

    1.3MB

    Download
  • memory/1444-60-0x0000000000000000-mapping.dmp
    Download
  • memory/1444-61-0x0000000002200000-0x0000000002201000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1624-58-0x0000000000000000-mapping.dmp
    Download