Malware Analysis Report

2025-04-03 08:53

Sample ID 230314-awr28aeg5t
Target 43bd311ba4afde9fa45000678c13b292dc144473a1ad0228961698eee481d60b.dll
SHA256 43bd311ba4afde9fa45000678c13b292dc144473a1ad0228961698eee481d60b
Tags
bb19 1678708246 qakbot
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

43bd311ba4afde9fa45000678c13b292dc144473a1ad0228961698eee481d60b

Threat Level: Known bad

The file 43bd311ba4afde9fa45000678c13b292dc144473a1ad0228961698eee481d60b.dll was found to be: Known bad.

Malicious Activity Summary

bb19 1678708246 qakbot

Qakbot family

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-03-14 00:34

Signatures

Qakbot family

qakbot

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-14 00:34

Reported

2023-03-14 00:37

Platform

win7-20230220-en

Max time kernel

28s

Max time network

30s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\43bd311ba4afde9fa45000678c13b292dc144473a1ad0228961698eee481d60b.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1760 wrote to memory of 1428 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1760 wrote to memory of 1428 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1760 wrote to memory of 1428 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1760 wrote to memory of 1428 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1760 wrote to memory of 1428 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1760 wrote to memory of 1428 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1760 wrote to memory of 1428 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1428 wrote to memory of 1940 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wermgr.exe
PID 1428 wrote to memory of 1940 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wermgr.exe
PID 1428 wrote to memory of 1940 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wermgr.exe
PID 1428 wrote to memory of 1940 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wermgr.exe
PID 1428 wrote to memory of 1244 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WerFault.exe
PID 1428 wrote to memory of 1244 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WerFault.exe
PID 1428 wrote to memory of 1244 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WerFault.exe
PID 1428 wrote to memory of 1244 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\43bd311ba4afde9fa45000678c13b292dc144473a1ad0228961698eee481d60b.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\43bd311ba4afde9fa45000678c13b292dc144473a1ad0228961698eee481d60b.dll,#1

C:\Windows\SysWOW64\wermgr.exe

C:\Windows\SysWOW64\wermgr.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1428 -s 360

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-03-14 00:34

Reported

2023-03-14 00:37

Platform

win10v2004-20230221-en

Max time kernel

119s

Max time network

127s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\43bd311ba4afde9fa45000678c13b292dc144473a1ad0228961698eee481d60b.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4584 wrote to memory of 3352 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4584 wrote to memory of 3352 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4584 wrote to memory of 3352 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3352 wrote to memory of 2104 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wermgr.exe
PID 3352 wrote to memory of 2104 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wermgr.exe
PID 3352 wrote to memory of 2104 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wermgr.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\43bd311ba4afde9fa45000678c13b292dc144473a1ad0228961698eee481d60b.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\43bd311ba4afde9fa45000678c13b292dc144473a1ad0228961698eee481d60b.dll,#1

C:\Windows\SysWOW64\wermgr.exe

C:\Windows\SysWOW64\wermgr.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 3352 -ip 3352

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3352 -s 740

Network

Country Destination Domain Proto
US 93.184.221.240:80 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 210.81.184.52.in-addr.arpa udp
US 8.8.8.8:53 113.238.32.23.in-addr.arpa udp
US 8.8.8.8:53 132.17.126.40.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 209.197.3.8:80 tcp
US 20.189.173.6:443 tcp
US 209.197.3.8:80 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp
US 8.8.8.8:53 2.77.109.52.in-addr.arpa udp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 176.122.125.40.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 6.9.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.3.0.4.0.0.3.0.1.3.0.6.2.ip6.arpa udp

Files

N/A