Overview

overview

10

Static

static

3fe1aeaec6...be.exe

windows7-x64

10

3fe1aeaec6...be.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    3fe1aeaec6e6923437807e0bfbb189be.exe

  • Size

    4.9MB

  • Sample

    221015-nrp9qafeeq

  • MD5

    3fe1aeaec6e6923437807e0bfbb189be

  • SHA1

    26c05ec60980095cd2dee6fb6d938fbf7a95150e

  • SHA256

    95b1a76fab69f6b786489fdfad350b7165fba55ff478769be1a09d8e2987ddc0

  • SHA512

    aa86a0632731484d730b6bb0794f0a1e4114498dcba8e2c47fac9f1ee534e125ebdef13fc9283696fee19c2ef4272c423d091b27585083ab03b70a151d2da5d7

  • SSDEEP

    49152:rl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8E:

Score
10/10
colibridcratbuild1evasioninfostealerloaderrattrojan

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

C2

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

Targets

    • Target

      3fe1aeaec6e6923437807e0bfbb189be.exe

    • Size

      4.9MB

    • MD5

      3fe1aeaec6e6923437807e0bfbb189be

    • SHA1

      26c05ec60980095cd2dee6fb6d938fbf7a95150e

    • SHA256

      95b1a76fab69f6b786489fdfad350b7165fba55ff478769be1a09d8e2987ddc0

    • SHA512

      aa86a0632731484d730b6bb0794f0a1e4114498dcba8e2c47fac9f1ee534e125ebdef13fc9283696fee19c2ef4272c423d091b27585083ab03b70a151d2da5d7

    • SSDEEP

      49152:rl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8E:

    Score
    10/10
    dcratevasioninfostealerrattrojancolibribuild1loader

    • Colibri Loader

      A loader sold as MaaS first seen in August 2021.

      loadercolibri

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

      ratinfostealerdcrat

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • UAC bypass

      evasiontrojan

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

      rat

    • Executes dropped EXE

    • Checks computer location settings

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

    • Checks whether UAC is enabled

      evasiontrojan

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Bypass User Account Control

1
T1088

Scheduled Task

1
T1053

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks