Malware Analysis Report

2024-10-23 15:36

Sample ID 230914-kr6d6aag7t
Target fcbb53724b1df93a5d1fc45bb55b9069.exe
SHA256 33e80e854c0959e28b1f94cdcd67e28298dcfa3d80d160bc2042f00047a81922
Tags
bumblebee js1 trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

33e80e854c0959e28b1f94cdcd67e28298dcfa3d80d160bc2042f00047a81922

Threat Level: Known bad

The file fcbb53724b1df93a5d1fc45bb55b9069.exe was found to be: Known bad.

Malicious Activity Summary

bumblebee js1 trojan

BumbleBee

Suspicious use of NtCreateThreadExHideFromDebugger

Unsigned PE

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-09-14 08:51

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-14 08:51

Reported

2023-09-14 08:53

Platform

win7-20230831-en

Max time kernel

119s

Max time network

125s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\fcbb53724b1df93a5d1fc45bb55b9069.dll

Signatures

BumbleBee

trojan bumblebee

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Windows\system32\regsvr32.exe N/A

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\fcbb53724b1df93a5d1fc45bb55b9069.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 v5b6ml4o0nq.life udp
DE 116.203.151.240:443 v5b6ml4o0nq.life tcp

Files

memory/2432-0-0x0000000000560000-0x00000000005D9000-memory.dmp

memory/2432-1-0x0000000077200000-0x00000000773A9000-memory.dmp

memory/2432-2-0x0000000002020000-0x000000000212A000-memory.dmp

memory/2432-4-0x0000000077200000-0x00000000773A9000-memory.dmp

memory/2432-5-0x0000000002020000-0x000000000212A000-memory.dmp

memory/2432-6-0x0000000002020000-0x000000000212A000-memory.dmp

memory/2432-7-0x0000000000560000-0x00000000005D9000-memory.dmp

memory/2432-8-0x0000000077200000-0x00000000773A9000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-14 08:51

Reported

2023-09-14 08:53

Platform

win10v2004-20230831-en

Max time kernel

150s

Max time network

155s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\fcbb53724b1df93a5d1fc45bb55b9069.dll

Signatures

BumbleBee

trojan bumblebee

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Windows\system32\regsvr32.exe N/A

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\fcbb53724b1df93a5d1fc45bb55b9069.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 v5b6ml4o0nq.life udp
DE 116.203.151.240:443 v5b6ml4o0nq.life tcp
US 8.8.8.8:53 240.151.203.116.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 1.173.189.20.in-addr.arpa udp
N/A 40.119.148.38:123 udp
US 8.8.8.8:53 udp

Files

memory/384-0-0x0000000002C20000-0x0000000002C99000-memory.dmp

memory/384-2-0x00007FFBE0810000-0x00007FFBE0A05000-memory.dmp

memory/384-1-0x0000000002E60000-0x0000000002F6A000-memory.dmp

memory/384-4-0x00007FFBE0810000-0x00007FFBE0A05000-memory.dmp

memory/384-3-0x0000000002E60000-0x0000000002F6A000-memory.dmp

memory/384-5-0x0000000002E60000-0x0000000002F6A000-memory.dmp

memory/384-6-0x00007FFBE0810000-0x00007FFBE0A05000-memory.dmp

memory/384-7-0x0000000002E60000-0x0000000002F6A000-memory.dmp

memory/384-8-0x0000000002C20000-0x0000000002C99000-memory.dmp

memory/384-9-0x00007FFBE0810000-0x00007FFBE0A05000-memory.dmp