General

  • Target

    0497063674da72a2e9db4eb046e5336b620fea9e5a595a6ed6f3e4d99270fb0d

  • Size

    403KB

  • Sample

    220704-x63b9schc6

  • MD5

    fc0c618ddea6e0917fb59f06a9c51446

  • SHA1

    cee03e6f2ff15110fafda6a7ddf614347dae5d9f

  • SHA256

    0497063674da72a2e9db4eb046e5336b620fea9e5a595a6ed6f3e4d99270fb0d

  • SHA512

    35d6ff2f4e80150fc9becc2f81121d31875f9c663aeaa6784801c8b7ee185e755689ddcde27784d97a9507ce66b44908244c3b0f563b546088e3dc555bf5e338

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

C2

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

Extracted

Family

raccoon

Botnet

4bdabb0995ee4b48db30078de2c5c206

C2

http://45.159.251.144/

rc4.plain
rc4.plain

Extracted

Family

redline

C2

193.233.193.49:11906

Attributes
  • auth_value

    ad5cd49e075db8527ecb265d0bf18710

Targets

    • Target

      0497063674da72a2e9db4eb046e5336b620fea9e5a595a6ed6f3e4d99270fb0d

    • Size

      403KB

    • MD5

      fc0c618ddea6e0917fb59f06a9c51446

    • SHA1

      cee03e6f2ff15110fafda6a7ddf614347dae5d9f

    • SHA256

      0497063674da72a2e9db4eb046e5336b620fea9e5a595a6ed6f3e4d99270fb0d

    • SHA512

      35d6ff2f4e80150fc9becc2f81121d31875f9c663aeaa6784801c8b7ee185e755689ddcde27784d97a9507ce66b44908244c3b0f563b546088e3dc555bf5e338

    • Colibri Loader

      A loader sold as MaaS first seen in August 2021.

    • Raccoon

      Raccoon is an infostealer written in C++ and first seen in 2019.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine Payload

    • suricata: ET MALWARE Generic gate .php GET with minimal headers

      suricata: ET MALWARE Generic gate .php GET with minimal headers

    • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

      suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • suricata: ET MALWARE Trojan Generic - POST To gate.php with no accept headers

      suricata: ET MALWARE Trojan Generic - POST To gate.php with no accept headers

    • suricata: ET MALWARE Trojan Generic - POST To gate.php with no referer

      suricata: ET MALWARE Trojan Generic - POST To gate.php with no referer

    • suricata: ET MALWARE Win32/Colibri Loader Activity

      suricata: ET MALWARE Win32/Colibri Loader Activity

    • suricata: ET MALWARE Win32/Colibri Loader Activity M2

      suricata: ET MALWARE Win32/Colibri Loader Activity M2

    • suricata: ET MALWARE Win32/Colibri Loader Activity M3

      suricata: ET MALWARE Win32/Colibri Loader Activity M3

    • Downloads MZ/PE file

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • 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 SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scripting

1
T1064

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Scripting

1
T1064

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks