Overview

overview

10

Static

static

1

invoice.xll

windows7-x64

7

invoice.xll

windows10-2004-x64

10

Sharing

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General

  • Target

    invoice.xll

  • Size

    597KB

  • Sample

    230208-1qccpaha87

  • MD5

    d9efc163b90630251fb7ff7c822e8f0f

  • SHA1

    9e09cce65d2371bc95e213a9007337933b11c3f9

  • SHA256

    6e68bcd52321a8d0443d5c5d6131410c07ef44a8cb3388550f78a3dea303e840

  • SHA512

    33bef8014ce017591e79e7642ab3d0c48306cb1b98b254c9a0aa4aa07f1ddce696ddfb4e89e0d230d7f2ae535db58a133797280bfd26d41c69588e396a3a5031

  • SSDEEP

    12288:xn/zDvGHAykHSzLW/4+8bzbBSreMdbYkBkgFK/UqW:lzbGHAzHAjX1IqcL

Score
10/10
colibriexploitsloader

Malware Config

Extracted

Language
xlm4.0
Source

Extracted

Family

colibri

Version

1.4.0

Botnet

exploits

C2

http://194.4.49.243/gate.php

rc4.plain

Targets

    • Target

      invoice.xll

    • Size

      597KB

    • MD5

      d9efc163b90630251fb7ff7c822e8f0f

    • SHA1

      9e09cce65d2371bc95e213a9007337933b11c3f9

    • SHA256

      6e68bcd52321a8d0443d5c5d6131410c07ef44a8cb3388550f78a3dea303e840

    • SHA512

      33bef8014ce017591e79e7642ab3d0c48306cb1b98b254c9a0aa4aa07f1ddce696ddfb4e89e0d230d7f2ae535db58a133797280bfd26d41c69588e396a3a5031

    • SSDEEP

      12288:xn/zDvGHAykHSzLW/4+8bzbBSreMdbYkBkgFK/UqW:lzbGHAzHAjX1IqcL

    Score
    10/10
    colibriexploitsloader

    • Colibri Loader

      A loader sold as MaaS first seen in August 2021.

      loadercolibri

    • Process spawned unexpected child process

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1
T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

1
T1064

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Tasks