Malware Analysis Report

2024-12-07 14:17

Sample ID 241120-dz113szkfv
Target 2024-11-20_5d32ada4f02216187028e891ed511b8b_hijackloader_ryuk
SHA256 f2f3b1f5c2d2e21e173d9b36f5c52c8a3f6c4eec2d428dbf3c5aa83b90cb9b69
Tags
bumblebee 21maca loader
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

f2f3b1f5c2d2e21e173d9b36f5c52c8a3f6c4eec2d428dbf3c5aa83b90cb9b69

Threat Level: Known bad

The file 2024-11-20_5d32ada4f02216187028e891ed511b8b_hijackloader_ryuk was found to be: Known bad.

Malicious Activity Summary

bumblebee 21maca loader

BumbleBee

Bumblebee family

Suspicious use of NtCreateThreadExHideFromDebugger

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-11-20 03:27

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-20 03:27

Reported

2024-11-20 03:30

Platform

win7-20241010-en

Max time kernel

146s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-20_5d32ada4f02216187028e891ed511b8b_hijackloader_ryuk.exe"

Signatures

BumbleBee

loader bumblebee

Bumblebee family

bumblebee

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-11-20_5d32ada4f02216187028e891ed511b8b_hijackloader_ryuk.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-20_5d32ada4f02216187028e891ed511b8b_hijackloader_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-20_5d32ada4f02216187028e891ed511b8b_hijackloader_ryuk.exe"

Network

Country Destination Domain Proto
IN 40.193.27.226:315 tcp
ZA 197.170.198.152:234 tcp
AU 163.223.67.191:321 tcp
US 73.237.181.95:225 tcp
JP 210.251.33.116:444 tcp
NL 84.35.30.131:488 tcp
CN 112.55.152.187:175 tcp

Files

memory/3044-0-0x00000000001F0000-0x000000000027B000-memory.dmp

memory/3044-1-0x0000000077911000-0x0000000077912000-memory.dmp

memory/3044-2-0x0000000000520000-0x0000000000681000-memory.dmp

memory/3044-4-0x00000000778C0000-0x0000000077A69000-memory.dmp

memory/3044-3-0x00000000778C0000-0x0000000077A69000-memory.dmp

memory/3044-5-0x00000000778C0000-0x0000000077A69000-memory.dmp

memory/3044-7-0x00000000778C0000-0x0000000077A69000-memory.dmp

memory/3044-6-0x00000000778C0000-0x0000000077A69000-memory.dmp

memory/3044-8-0x0000000000520000-0x0000000000681000-memory.dmp

memory/3044-9-0x0000000000520000-0x0000000000681000-memory.dmp

memory/3044-10-0x00000000001F0000-0x000000000027B000-memory.dmp

memory/3044-11-0x00000000778C0000-0x0000000077A69000-memory.dmp

memory/3044-12-0x0000000077911000-0x0000000077912000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-20 03:27

Reported

2024-11-20 03:30

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-20_5d32ada4f02216187028e891ed511b8b_hijackloader_ryuk.exe"

Signatures

BumbleBee

loader bumblebee

Bumblebee family

bumblebee

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-11-20_5d32ada4f02216187028e891ed511b8b_hijackloader_ryuk.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-20_5d32ada4f02216187028e891ed511b8b_hijackloader_ryuk.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-20_5d32ada4f02216187028e891ed511b8b_hijackloader_ryuk.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
IN 40.193.27.226:315 tcp
US 8.8.8.8:53 21.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
ZA 197.170.198.152:234 tcp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
AU 163.223.67.191:321 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 73.237.181.95:225 tcp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
JP 210.251.33.116:444 tcp
NL 84.35.30.131:488 tcp
CN 112.55.152.187:175 tcp
US 8.8.8.8:53 14.179.89.13.in-addr.arpa udp

Files

memory/3936-0-0x000001AC78040000-0x000001AC780CB000-memory.dmp

memory/3936-1-0x00007FFDAD3ED000-0x00007FFDAD3EE000-memory.dmp

memory/3936-2-0x000001AC78230000-0x000001AC78391000-memory.dmp

memory/3936-3-0x00007FFDAD350000-0x00007FFDAD545000-memory.dmp

memory/3936-4-0x00007FFDAD350000-0x00007FFDAD545000-memory.dmp

memory/3936-5-0x00007FFDAD350000-0x00007FFDAD545000-memory.dmp

memory/3936-6-0x000001AC78230000-0x000001AC78391000-memory.dmp

memory/3936-7-0x000001AC78230000-0x000001AC78391000-memory.dmp

memory/3936-8-0x000001AC78040000-0x000001AC780CB000-memory.dmp

memory/3936-9-0x00007FFDAD3ED000-0x00007FFDAD3EE000-memory.dmp

memory/3936-10-0x00007FFDAD350000-0x00007FFDAD545000-memory.dmp