General

  • Target

    533a75352e7692b34a28738a67915adf.exe

  • Size

    602KB

  • Sample

    220903-p8mqlafccm

  • MD5

    533a75352e7692b34a28738a67915adf

  • SHA1

    f58115604020a34ad5a3853c9e91f957fae3021a

  • SHA256

    31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91

  • SHA512

    aff91444a99ca1663ffee7c42060e47bcd830b2acdc7791fb468fa581295c398c97fc7b63e2e38f0c85ae2c61bf831ec70fc3e49b8af5fce56eee33f7e73ba5b

  • SSDEEP

    12288:8aHNwhpywQ4NNFNS1I5wWOXfVVIiOsTmddebmxNkV1GWcfAQwPStrWliGYQJo:N/fOLBGYQJ

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

C2

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

Targets

    • Target

      533a75352e7692b34a28738a67915adf.exe

    • Size

      602KB

    • MD5

      533a75352e7692b34a28738a67915adf

    • SHA1

      f58115604020a34ad5a3853c9e91f957fae3021a

    • SHA256

      31e2235fd61e64986d698dd1b8cb11c494b05d575886ccfcc437094735401e91

    • SHA512

      aff91444a99ca1663ffee7c42060e47bcd830b2acdc7791fb468fa581295c398c97fc7b63e2e38f0c85ae2c61bf831ec70fc3e49b8af5fce56eee33f7e73ba5b

    • SSDEEP

      12288:8aHNwhpywQ4NNFNS1I5wWOXfVVIiOsTmddebmxNkV1GWcfAQwPStrWliGYQJo:N/fOLBGYQJ

    • Colibri Loader

      A loader sold as MaaS first seen in August 2021.

    • Detectes Phoenix Miner Payload

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks