qakbot | 5f04c44de516e644115ad8094afbdab4b52ce6e46a848aeb7cf634ad471e4ac0

Target

dexc.ocx.dll
Size

647KB
MD5

74335b83254eeff621dd7bea844eb859
SHA1

b004da994afd349eec84ef0a579ca9785f6f496d
SHA256

5f04c44de516e644115ad8094afbdab4b52ce6e46a848aeb7cf634ad471e4ac0
SHA512

edece82d4cb1a8c8d7f5d43ffa7920ff0cb8c61154c5b06d9b3d48a52b0a08a4ce0c0610957d1ca4d5ae6d99e4a4f441da3a2a56eec3e123666742c59905c44e

Score

10^/10

qakbot cullinan 1640168876 banker stealer trojan

Malware Config

Extracted

Family

qakbot

Version

403.10

Botnet

cullinan

Campaign

1640168876

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 3496 created 3916 3496 WerFault.exe rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1548 3916 WerFault.exe rundll32.exe

description	pid	process	target process
PID 3496 created 3916	3496	WerFault.exe	rundll32.exe

pid	pid_target	process	target process
1548	3916	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WerFault.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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

3916 rundll32.exe
3916 rundll32.exe
1548 WerFault.exe
1548 WerFault.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 1548 WerFault.exe
Token: SeBackupPrivilege 1548 WerFault.exe

pid	process
3916	rundll32.exe
3916	rundll32.exe
1548	WerFault.exe
1548	WerFault.exe

description	pid	process
Token: SeRestorePrivilege	1548	WerFault.exe
Token: SeBackupPrivilege	1548	WerFault.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

rundll32.exeWerFault.exe

description	pid	process	target process
PID 436 wrote to memory of 3916	436	rundll32.exe	rundll32.exe
PID 436 wrote to memory of 3916	436	rundll32.exe	rundll32.exe
PID 436 wrote to memory of 3916	436	rundll32.exe	rundll32.exe
PID 3496 wrote to memory of 3916	3496	WerFault.exe	rundll32.exe
PID 3496 wrote to memory of 3916	3496	WerFault.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dexc.ocx.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:436

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dexc.ocx.dll,#1
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:3916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3916 -s 628
3⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3916 -ip 3916
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:3496

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3916-130-0x0000000004760000-0x00000000047A3000-memory.dmp

Filesize
268KB

Download
memory/3916-132-0x00000000047B0000-0x00000000047D1000-memory.dmp

Filesize
132KB

Download
memory/3916-131-0x00000000047B0000-0x00000000047D1000-memory.dmp

Filesize
132KB

Download
memory/3916-133-0x00000000047B0000-0x00000000047D1000-memory.dmp

Filesize
132KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads