Analysis

  • max time kernel
    123s
  • max time network
    181s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    08-11-2021 10:07

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops Chrome extension 1 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\022e3c30a1504fde93e24b2206f804a923ee9785e4db81a166939a1e7b928b66.exe
    "C:\Users\Admin\AppData\Local\Temp\022e3c30a1504fde93e24b2206f804a923ee9785e4db81a166939a1e7b928b66.exe"
    1⤵
    • Checks computer location settings
    • Drops Chrome extension
    • Suspicious behavior: EnumeratesProcesses
    PID:3988
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 1808
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3460

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

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

1
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3988-118-0x0000000005920000-0x0000000005A6C000-memory.dmp
    Filesize

    1.3MB