Analysis

  • max time kernel
    150s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    17-06-2022 18:38

General

  • Target

    b07997fa6d97fa62edb47fe65881fb8fd7cfc025b1ac4bd80688a43006533c01.exe

  • Size

    198KB

  • MD5

    06881454143376beb76a127d1758524d

  • SHA1

    4c6957bee8f43be7a44918f7a418270134bc4e9c

  • SHA256

    b07997fa6d97fa62edb47fe65881fb8fd7cfc025b1ac4bd80688a43006533c01

  • SHA512

    abba15ced8006c48468b4375bded848c5e16cfa97006c10f09db716aac946f3d4c25f2a6f55ea7e1f473f83ba83f3cc25617ea159fd4be29c9ed9f517c0a3c67

Malware Config

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 7 IoCs
  • PrivateLoader

    PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

  • suricata: ET MALWARE Win32/Spy.Socelars.S CnC Activity M3

    suricata: ET MALWARE Win32/Spy.Socelars.S CnC Activity M3

  • 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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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.

  • Suspicious behavior: EnumeratesProcesses 45 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b07997fa6d97fa62edb47fe65881fb8fd7cfc025b1ac4bd80688a43006533c01.exe
    "C:\Users\Admin\AppData\Local\Temp\b07997fa6d97fa62edb47fe65881fb8fd7cfc025b1ac4bd80688a43006533c01.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1336
    • C:\Users\Admin\Pictures\Adobe Films\GBLWiY2xaEn4czEIfadi5ODA.exe
      "C:\Users\Admin\Pictures\Adobe Films\GBLWiY2xaEn4czEIfadi5ODA.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:616

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

2
T1082

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\Pictures\Adobe Films\GBLWiY2xaEn4czEIfadi5ODA.exe
    Filesize

    318KB

    MD5

    3f22bd82ee1b38f439e6354c60126d6d

    SHA1

    63b57d818f86ea64ebc8566faeb0c977839defde

    SHA256

    265c2ddc8a21e6fa8dfaa38ef0e77df8a2e98273a1abfb575aef93c0cc8ee96a

    SHA512

    b73e8e17e5e99d0e9edfb690ece8b0c15befb4d48b1c4f2fe77c5e3daf01df35858c06e1403a8636f86363708b80123d12122cb821a86b575b184227c760988f

  • \Users\Admin\Pictures\Adobe Films\GBLWiY2xaEn4czEIfadi5ODA.exe
    Filesize

    318KB

    MD5

    3f22bd82ee1b38f439e6354c60126d6d

    SHA1

    63b57d818f86ea64ebc8566faeb0c977839defde

    SHA256

    265c2ddc8a21e6fa8dfaa38ef0e77df8a2e98273a1abfb575aef93c0cc8ee96a

    SHA512

    b73e8e17e5e99d0e9edfb690ece8b0c15befb4d48b1c4f2fe77c5e3daf01df35858c06e1403a8636f86363708b80123d12122cb821a86b575b184227c760988f

  • memory/616-58-0x0000000000000000-mapping.dmp
  • memory/1336-54-0x0000000074B51000-0x0000000074B53000-memory.dmp
    Filesize

    8KB

  • memory/1336-55-0x0000000003BC0000-0x0000000003D7C000-memory.dmp
    Filesize

    1.7MB

  • memory/1336-56-0x0000000003BC0000-0x0000000003D7C000-memory.dmp
    Filesize

    1.7MB

  • memory/1336-60-0x0000000003BC0000-0x0000000003D7C000-memory.dmp
    Filesize

    1.7MB