Overview

overview

10

Static

static

3

CojcsWGNGl.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    129s
  • max time network
    135s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    04-04-2024 23:52

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General

  • Target

    CojcsWGNGl.exe

  • Size

    6.0MB

  • MD5

    bb3cef2577d61f6db132ea9127687653

  • SHA1

    23744c6489204c1c12a7db9f11736826df8612fc

  • SHA256

    82c05e788b690d480d56cf4f093a7739d668934acdba574191a6ecc88e843bb5

  • SHA512

    700cdf03182d0e86ac7daacda067e7603d0e7fe0d3bff112efb4eb8c968eac2af9033bf4b03e6d05ec92f955a2bc626ab43b52d1125c6ada11beb229a65470a2

  • SSDEEP

    49152:xr3uXF+Kb8t3A+Gha2ImSJLuHHuFJajTpYEfSozlqBDMj74oNDdTxfZP:xr3uXFq0haJtin9

Score
10/10
bumblebeeproc_123evasionloader

Malware Config

Extracted

Family

bumblebee

Botnet

proc_123

rc4.plain

Signatures

  • BumbleBee

    BumbleBee is a loader malware written in C++.

    loaderbumblebee
  • Enumerates VirtualBox registry keys 2 TTPs 5 IoCs
    evasion
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
    evasion
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
    evasion
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
    evasion
  • Checks BIOS information in registry 2 TTPs 3 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    evasion
  • Checks system information in the registry 2 TTPs 2 IoCs

    System information is often read in order to detect sandboxing environments.

  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CojcsWGNGl.exe
    "C:\Users\Admin\AppData\Local\Temp\CojcsWGNGl.exe"
    1⤵
    • Enumerates VirtualBox registry keys
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Checks system information in the registry
    • Checks for VirtualBox DLLs, possible anti-VM trick
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    PID:4812

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

5
T1497

Credential Access

Discovery

Query Registry

8
T1012

Virtualization/Sandbox Evasion

5
T1497

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • memory/4812-0-0x000001E6657B0000-0x000001E6659DA000-memory.dmp
    Filesize

    2.2MB

    Download
  • memory/4812-1-0x000001E6659E0000-0x000001E665BF4000-memory.dmp
    Filesize

    2.1MB

    Download
  • memory/4812-2-0x000001E6659E0000-0x000001E665BF4000-memory.dmp
    Filesize

    2.1MB

    Download
  • memory/4812-3-0x000001E6657B0000-0x000001E6659DA000-memory.dmp
    Filesize

    2.2MB

    Download
  • memory/4812-4-0x000001E6659E0000-0x000001E665BF4000-memory.dmp
    Filesize

    2.1MB

    Download