qakbot | acb339909ab1431c2275c5c53b2554b2020e235cfe28ecb5352589397bc8a3f1

General

Target

8a335b358df09c862e37cc21e8c2ad7bbe7c83db762b77a8efe05bc3f31a82fa.dll
Size

628KB
MD5

2a1f3fdc3e33d35c6ec52194fc02c084
SHA1

d6d56c94bd7e81acddfa39250a8a351d08c8cad2
SHA256

8a335b358df09c862e37cc21e8c2ad7bbe7c83db762b77a8efe05bc3f31a82fa
SHA512

c8d8829be19ca10a8d8b21708d644d2e635dd08464132b83f0dbb83b3d70305eaf0c1c75fe7f2a96dd97291155c03692311d675abad7a46b8006edc2ef62f55b

Score

10^/10

qakbot cullinan 1640168876 banker stealer trojan

Malware Config

Extracted

Family

qakbot

Version

403.10

Botnet

cullinan

Campaign

1640168876

C2

93.48.80.198:995

140.82.49.12:443

32.221.229.7:443

24.152.219.253:995

31.35.28.29:443

96.37.113.36:993

190.39.205.165:443

79.173.195.234:443

39.49.66.100:995

103.139.242.30:22

79.167.192.206:995

45.9.20.200:2211

24.95.61.62:443

37.210.226.125:61202

103.139.242.30:995

70.163.1.219:443

103.143.8.71:6881

76.169.147.192:32103

136.143.11.232:443

63.153.187.104:443

Attributes

salt
jHxastDcds)oMc=jvh7wdUhxcsdt2

Signatures

Qakbot/Qbot
Qbot or Qakbot is a sophisticated worm with banking capabilities.
trojan banker stealer qakbot
Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 4844 created 3924 4844 WerFault.exe rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4856 3924 WerFault.exe rundll32.exe

description	pid	process	target process
PID 4844 created 3924	4844	WerFault.exe	rundll32.exe

pid	pid_target	process	target process
4856	3924	WerFault.exe	rundll32.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WerFault.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WerFault.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WerFault.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WerFault.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

rundll32.exeWerFault.exe

pid process

3924 rundll32.exe
3924 rundll32.exe
4856 WerFault.exe
4856 WerFault.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 4856 WerFault.exe
Token: SeBackupPrivilege 4856 WerFault.exe

pid	process
3924	rundll32.exe
3924	rundll32.exe
4856	WerFault.exe
4856	WerFault.exe

description	pid	process
Token: SeRestorePrivilege	4856	WerFault.exe
Token: SeBackupPrivilege	4856	WerFault.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

rundll32.exeWerFault.exe

description	pid	process	target process
PID 5024 wrote to memory of 3924	5024	rundll32.exe	rundll32.exe
PID 5024 wrote to memory of 3924	5024	rundll32.exe	rundll32.exe
PID 5024 wrote to memory of 3924	5024	rundll32.exe	rundll32.exe
PID 4844 wrote to memory of 3924	4844	WerFault.exe	rundll32.exe
PID 4844 wrote to memory of 3924	4844	WerFault.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8a335b358df09c862e37cc21e8c2ad7bbe7c83db762b77a8efe05bc3f31a82fa.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5024

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8a335b358df09c862e37cc21e8c2ad7bbe7c83db762b77a8efe05bc3f31a82fa.dll,#1
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:3924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3924 -s 628
3⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3924 -ip 3924
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:4844

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/3924-130-0x0000000002C30000-0x0000000002CD0000-memory.dmp

Filesize
640KB

Download
memory/3924-131-0x0000000002E20000-0x0000000002E41000-memory.dmp

Filesize
132KB

Download
memory/3924-132-0x0000000002E20000-0x0000000002E41000-memory.dmp

Filesize
132KB

Download
memory/3924-134-0x0000000002E20000-0x0000000002E41000-memory.dmp

Filesize
132KB

Download
memory/3924-133-0x0000000002DD0000-0x0000000002E13000-memory.dmp

Filesize
268KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads