General

  • Target

    otc 4 fix (no depot).exe

  • Size

    36.1MB

  • Sample

    210713-d13byp9blj

  • MD5

    2af397334802bc90ee5f14270e51446e

  • SHA1

    38d211c10f0b10ee007a9d3fa39513485a08524d

  • SHA256

    6d5225ec9ee44d1d375dae8f6df80dcd102faa80c1d9072deed04635635c5dc4

  • SHA512

    b4ddc0dc3e376e398646a09ccf225ee628aefe75ff83d384fc180dd79aef2732b21db423b0c4144ba1d64f48b1d93d39056373bbecd6ec7c7fa482963773e532

Malware Config

Targets

    • Target

      otc 4 fix (no depot).exe

    • Size

      36.1MB

    • MD5

      2af397334802bc90ee5f14270e51446e

    • SHA1

      38d211c10f0b10ee007a9d3fa39513485a08524d

    • SHA256

      6d5225ec9ee44d1d375dae8f6df80dcd102faa80c1d9072deed04635635c5dc4

    • SHA512

      b4ddc0dc3e376e398646a09ccf225ee628aefe75ff83d384fc180dd79aef2732b21db423b0c4144ba1d64f48b1d93d39056373bbecd6ec7c7fa482963773e532

    • Executes dropped EXE

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks