Overview

overview

10

Static

static

792536cb7e...2f.exe

windows7_x64

10

792536cb7e...2f.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    62s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 12:20

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General

  • Target

    792536cb7e72e25a03d2b9b2d54027106eb2003ab56f7104cd407f57693cfc2f.exe

  • Size

    425KB

  • MD5

    9e7322df010fcaf39555b79849014ff2

  • SHA1

    aa5f2d73b5dd6c0e6207b5cbb1b5d8dadff31008

  • SHA256

    792536cb7e72e25a03d2b9b2d54027106eb2003ab56f7104cd407f57693cfc2f

  • SHA512

    97455f588328c467523c676449716e480e8638015bab280d194104da44a563d528645f7175b0a3f81d9c4cb62d7560893b143a70361a5ef3418e9bcd2e17f9a5

Score
10/10
colibribuild1loadersuricata

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

C2

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

Signatures

  • Colibri Loader

    A loader sold as MaaS first seen in August 2021.

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

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

    suricata
  • 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
  • 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
  • suricata: ET MALWARE Win32/Colibri Loader Activity

    suricata: ET MALWARE Win32/Colibri Loader Activity

    suricata
  • suricata: ET MALWARE Win32/Colibri Loader Activity M2

    suricata: ET MALWARE Win32/Colibri Loader Activity M2

    suricata
  • suricata: ET MALWARE Win32/Colibri Loader Activity M3

    suricata: ET MALWARE Win32/Colibri Loader Activity M3

    suricata
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\792536cb7e72e25a03d2b9b2d54027106eb2003ab56f7104cd407f57693cfc2f.exe
    "C:\Users\Admin\AppData\Local\Temp\792536cb7e72e25a03d2b9b2d54027106eb2003ab56f7104cd407f57693cfc2f.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1836
    • C:\Users\Admin\AppData\Local\Temp\tmp1DED.tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp1DED.tmp.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1268
      • C:\Windows\SysWOW64\schtasks.exe
        /create /tn COMSurrogate /st 00:00 /du 9999:59 /sc once /ri 1 /f /tr "C:\Users\Admin\Documents\WindowsPowerShell\dllhost.exe"
        3⤵
        • Creates scheduled task(s)
        PID:988
      • C:\Users\Admin\Documents\WindowsPowerShell\dllhost.exe
        "C:\Users\Admin\Documents\WindowsPowerShell\dllhost.exe"
        3⤵
        • Executes dropped EXE
        PID:1612

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp1DED.tmp.exe
    Filesize

    87KB

    MD5

    cab62deb76880ed5c49abfefa6f7862c

    SHA1

    c8b358844131c983dd96b1ca74ea1b8d5d34c6a8

    SHA256

    45fff4489cc037313de8edf3589515197c184579658921fb06eb6fd4e860253e

    SHA512

    57c4ef898513b8c9c4e14e053e3d2beac2feb0f676e77577a20bbbde4c921cf830e9a803fd001a43b5441c1edff5a94e3b00837279286f613da3d9402f07ee06

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\tmp1DED.tmp.exe
    Filesize

    87KB

    MD5

    cab62deb76880ed5c49abfefa6f7862c

    SHA1

    c8b358844131c983dd96b1ca74ea1b8d5d34c6a8

    SHA256

    45fff4489cc037313de8edf3589515197c184579658921fb06eb6fd4e860253e

    SHA512

    57c4ef898513b8c9c4e14e053e3d2beac2feb0f676e77577a20bbbde4c921cf830e9a803fd001a43b5441c1edff5a94e3b00837279286f613da3d9402f07ee06

    Download Submit
  • C:\Users\Admin\Documents\WindowsPowerShell\dllhost.exe
    Filesize

    87KB

    MD5

    cab62deb76880ed5c49abfefa6f7862c

    SHA1

    c8b358844131c983dd96b1ca74ea1b8d5d34c6a8

    SHA256

    45fff4489cc037313de8edf3589515197c184579658921fb06eb6fd4e860253e

    SHA512

    57c4ef898513b8c9c4e14e053e3d2beac2feb0f676e77577a20bbbde4c921cf830e9a803fd001a43b5441c1edff5a94e3b00837279286f613da3d9402f07ee06

    Download Submit
  • \Users\Admin\Documents\WindowsPowerShell\dllhost.exe
    Filesize

    87KB

    MD5

    cab62deb76880ed5c49abfefa6f7862c

    SHA1

    c8b358844131c983dd96b1ca74ea1b8d5d34c6a8

    SHA256

    45fff4489cc037313de8edf3589515197c184579658921fb06eb6fd4e860253e

    SHA512

    57c4ef898513b8c9c4e14e053e3d2beac2feb0f676e77577a20bbbde4c921cf830e9a803fd001a43b5441c1edff5a94e3b00837279286f613da3d9402f07ee06

    Download Submit
  • memory/988-60-0x0000000000000000-mapping.dmp
    Download
  • memory/1268-58-0x0000000075501000-0x0000000075503000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1268-56-0x0000000000000000-mapping.dmp
    Download
  • memory/1268-63-0x0000000000860000-0x0000000000876000-memory.dmp
    Filesize

    88KB

    Download
  • memory/1612-62-0x0000000000000000-mapping.dmp
    Download
  • memory/1836-54-0x0000000000850000-0x00000000008BE000-memory.dmp
    Filesize

    440KB

    Download
  • memory/1836-55-0x0000000000420000-0x000000000045E000-memory.dmp
    Filesize

    248KB

    Download