Malware Analysis Report

2024-10-23 15:36

Sample ID 230914-kr54dsag61
Target 7d2156efddf126dfb4c466da06f15e11.exe
SHA256 452bb497728f1eb2ccd56b83f7a13e51447bd79852085e68908cb6c47625060b
Tags
bumblebee js1 trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

452bb497728f1eb2ccd56b83f7a13e51447bd79852085e68908cb6c47625060b

Threat Level: Known bad

The file 7d2156efddf126dfb4c466da06f15e11.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: behavioral2

Detonation Overview

Submitted

2023-09-14 08:51

Reported

2023-09-14 08:53

Platform

win10v2004-20230831-en

Max time kernel

140s

Max time network

146s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\7d2156efddf126dfb4c466da06f15e11.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\7d2156efddf126dfb4c466da06f15e11.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.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 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 25.73.42.20.in-addr.arpa udp

Files

memory/1068-0-0x0000000002350000-0x00000000023C9000-memory.dmp

memory/1068-1-0x00007FF8098B0000-0x00007FF809AA5000-memory.dmp

memory/1068-2-0x00000000025E0000-0x00000000026EA000-memory.dmp

memory/1068-3-0x00000000025E0000-0x00000000026EA000-memory.dmp

memory/1068-5-0x00007FF8098B0000-0x00007FF809AA5000-memory.dmp

memory/1068-4-0x00000000025E0000-0x00000000026EA000-memory.dmp

memory/1068-6-0x00007FF8098B0000-0x00007FF809AA5000-memory.dmp

memory/1068-7-0x00007FF8098B0000-0x00007FF809AA5000-memory.dmp

memory/1068-8-0x00007FF8098B0000-0x00007FF809AA5000-memory.dmp

memory/1068-9-0x00000000025E0000-0x00000000026EA000-memory.dmp

memory/1068-10-0x0000000002350000-0x00000000023C9000-memory.dmp

memory/1068-11-0x00007FF8098B0000-0x00007FF809AA5000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-14 08:51

Reported

2023-09-14 08:53

Platform

win7-20230831-en

Max time kernel

118s

Max time network

121s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\7d2156efddf126dfb4c466da06f15e11.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\7d2156efddf126dfb4c466da06f15e11.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/3004-0-0x00000000002F0000-0x0000000000369000-memory.dmp

memory/3004-1-0x0000000002010000-0x000000000211A000-memory.dmp

memory/3004-2-0x0000000077B70000-0x0000000077D19000-memory.dmp

memory/3004-3-0x0000000077B70000-0x0000000077D19000-memory.dmp

memory/3004-5-0x0000000077B70000-0x0000000077D19000-memory.dmp

memory/3004-6-0x0000000002010000-0x000000000211A000-memory.dmp

memory/3004-7-0x0000000002010000-0x000000000211A000-memory.dmp

memory/3004-8-0x00000000002F0000-0x0000000000369000-memory.dmp

memory/3004-9-0x0000000077B70000-0x0000000077D19000-memory.dmp