Malware Analysis Report

2024-10-19 01:06

Sample ID 231013-1hwrcsdf58
Target 131cee43a6f14bd9133246e87828275c30b2ad9d3036b4fcd4a08001903fa7e7_JC.exe
SHA256 131cee43a6f14bd9133246e87828275c30b2ad9d3036b4fcd4a08001903fa7e7
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

131cee43a6f14bd9133246e87828275c30b2ad9d3036b4fcd4a08001903fa7e7

Threat Level: Known bad

The file 131cee43a6f14bd9133246e87828275c30b2ad9d3036b4fcd4a08001903fa7e7_JC.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

2023-10-13 21:39

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-10-13 21:39

Reported

2023-10-14 08:38

Platform

win7-20230831-en

Max time kernel

123s

Max time network

129s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\131cee43a6f14bd9133246e87828275c30b2ad9d3036b4fcd4a08001903fa7e7_JC.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\131cee43a6f14bd9133246e87828275c30b2ad9d3036b4fcd4a08001903fa7e7_JC.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 v5b6ml4o0nq.life udp
US 35.241.18.84:443 v5b6ml4o0nq.life tcp
US 8.8.8.8:53 v5b6ml4o0nq.life udp
US 35.241.18.84:443 v5b6ml4o0nq.life tcp
US 35.241.18.84:443 v5b6ml4o0nq.life tcp
US 35.241.18.84:443 v5b6ml4o0nq.life tcp
US 8.8.8.8:53 v5b6ml4o0nq.life udp
US 35.241.18.84:443 v5b6ml4o0nq.life tcp

Files

memory/2732-0-0x0000000001E10000-0x0000000001E89000-memory.dmp

memory/2732-1-0x0000000076CD0000-0x0000000076E79000-memory.dmp

memory/2732-2-0x0000000001FA0000-0x00000000020AA000-memory.dmp

memory/2732-3-0x0000000076CD0000-0x0000000076E79000-memory.dmp

memory/2732-5-0x0000000001FA0000-0x00000000020AA000-memory.dmp

memory/2732-6-0x0000000001FA0000-0x00000000020AA000-memory.dmp

memory/2732-7-0x0000000001E10000-0x0000000001E89000-memory.dmp

memory/2732-8-0x0000000076CD0000-0x0000000076E79000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-13 21:39

Reported

2023-10-14 08:37

Platform

win10v2004-20230915-en

Max time kernel

173s

Max time network

181s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\131cee43a6f14bd9133246e87828275c30b2ad9d3036b4fcd4a08001903fa7e7_JC.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\131cee43a6f14bd9133246e87828275c30b2ad9d3036b4fcd4a08001903fa7e7_JC.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 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 v5b6ml4o0nq.life udp
US 35.241.18.84:443 v5b6ml4o0nq.life tcp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 29.81.57.23.in-addr.arpa udp
US 8.8.8.8:53 84.18.241.35.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 35.241.18.84:443 v5b6ml4o0nq.life tcp
US 8.8.8.8:53 v5b6ml4o0nq.life udp
US 35.241.18.84:443 v5b6ml4o0nq.life tcp
US 35.241.18.84:443 v5b6ml4o0nq.life tcp
US 8.8.8.8:53 14.173.189.20.in-addr.arpa udp
US 35.241.18.84:443 v5b6ml4o0nq.life tcp
US 8.8.8.8:53 121.208.253.8.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 38.148.119.40.in-addr.arpa udp

Files

memory/4232-0-0x0000000002740000-0x00000000027B9000-memory.dmp

memory/4232-1-0x00007FFD3EED0000-0x00007FFD3F0C5000-memory.dmp

memory/4232-3-0x00000000028D0000-0x00000000029DA000-memory.dmp

memory/4232-4-0x00007FFD3EED0000-0x00007FFD3F0C5000-memory.dmp

memory/4232-5-0x00000000028D0000-0x00000000029DA000-memory.dmp

memory/4232-2-0x00000000028D0000-0x00000000029DA000-memory.dmp

memory/4232-6-0x00000000028D0000-0x00000000029DA000-memory.dmp

memory/4232-7-0x0000000002740000-0x00000000027B9000-memory.dmp

memory/4232-8-0x00007FFD3EED0000-0x00007FFD3F0C5000-memory.dmp