qakbot | bb5474144a8e3471ff7df9a3ba8bc69c13ef0c2356fdc569f426720c192e2e32

General

Target

bb5474144a8e3471ff7df9a3ba8bc69c13ef0c2356fdc569f426720c192e2e32.dll
Size

628KB
MD5

3900c75c8ade09e4be828cb946a5d46e
SHA1

2518175a7f2016d7c8790d19a0950ec928482065
SHA256

bb5474144a8e3471ff7df9a3ba8bc69c13ef0c2356fdc569f426720c192e2e32
SHA512

d5134e4c43343d7fb4beff466dac4c58e2d3316b6cc22ad0cdaf203fb5d81d92020609915be2d1e74c877b496b437e035dcc3c18f20c696b468f347b06f5d533

Score

10^/10

qakbot cullinan 1640168876 banker evasion 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 3368 created 3880 3368 WerFault.exe rundll32.exe
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Loads dropped DLL 1 IoCs

Processes:

regsvr32.exe

pid process

2520 regsvr32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2992 3880 WerFault.exe rundll32.exe

description	pid	process	target process
PID 3368 created 3880	3368	WerFault.exe	rundll32.exe

pid	process
2520	regsvr32.exe

pid	pid_target	process	target process
2992	3880	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

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

3476 schtasks.exe

pid	process
3476	schtasks.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

Modifies data under HKEY_USERS 10 IoCs

Processes:

explorer.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Znrrkdeuoezid\d03488a3 = 5d8e3195946c040d2d50cbac7240bc7967ac0e8310acf5f091b851293b73cf5d6fe046298b9f8b6ee8b5105a2bbd	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Znrrkdeuoezid\af7de755 = f6601fdc1fc097b1a7013149588b9b4ae9e6c38b0a47449bffa3572c25e88a1b06c617db9e9d0b71786c839b4114ef205b95d135bf7696d953a6ae6fadba6184309c4df5bfc84b2b5eb536363a	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Znrrkdeuoezid\201f7002 = 133923e1ec294ba7d7026bf2d3eb4b0a89b91700ed10532106b633eb803383afbd10de28040aacca3fb4063be191c269b152672e9c98c8	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Znrrkdeuoezid\e5ab58ed = 478e9220202880f120f714d71555a421b037ac344db103f4ec95a2506eee85dc52	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Znrrkdeuoezid\9ae2371b = db63e8bc05dfd23832c6623442d78634ec2968c615eb5cba41739d71380afc34f48c67db7f16e1a928d1035aef1db6c1786df7c3f782c6152636066cfe4757715e885f8bf5bd64fe62f3e02f3da2de301d095b6a14d727485f5bb6920ee5c3dc37de89b3997d8c4b400e44e7914b4f0ef493f653fca123513a63c4b7f6f67cd52629a455f1efaa3b8b921c58579f2c0671	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Znrrkdeuoezid\98a31767 = 0a3aa4af70e5a92d1cbbd7c998bd3bbb60f1257041be69ee964e55e802be185cf4f9067ab1240488cfbf4beb829eb864bd6f237402df0aeeba9b6bad8400d147fdafcc66a5d50c5e86fae936de20e0ab71	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Znrrkdeuoezid\5d173f88 = b521bbcf330f1046ee8bd6240e34136646926f86ac82eb22c31cbd9d6d6ea23a98bb035d2db35f39e8d41077b28676421333b72cd55b0edb8541f73fd2a4ae6c32	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Znrrkdeuoezid\225e507e = 7b2786006216169c69bdf88b53b90291f755e1f9a7c3f55433036d95ce7dc8155c0ee44213b6a2c6d2f01ade81b8f30c61a43f64e39035a7353c	explorer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Znrrkdeuoezid	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Znrrkdeuoezid\af7de755 = f66008dc1fc0a26f9afe71129afe3b9c804bf0f32d64b448b3684d394b09f1d7030c8c5f322c93cb168f2f3d31dae193b0789f271177dafd	explorer.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

rundll32.exeWerFault.exeregsvr32.exe

pid process

3880 rundll32.exe
3880 rundll32.exe
2992 WerFault.exe
2992 WerFault.exe
2520 regsvr32.exe
2520 regsvr32.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

rundll32.exeregsvr32.exe

pid process

3880 rundll32.exe
2520 regsvr32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 2992 WerFault.exe
Token: SeBackupPrivilege 2992 WerFault.exe

pid	process
3880	rundll32.exe
3880	rundll32.exe
2992	WerFault.exe
2992	WerFault.exe
2520	regsvr32.exe
2520	regsvr32.exe

pid	process
3880	rundll32.exe
2520	regsvr32.exe

description	pid	process
Token: SeRestorePrivilege	2992	WerFault.exe
Token: SeBackupPrivilege	2992	WerFault.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

rundll32.exerundll32.exeWerFault.exeexplorer.exeregsvr32.exeregsvr32.exeexplorer.exe

description	pid	process	target process
PID 3868 wrote to memory of 3880	3868	rundll32.exe	rundll32.exe
PID 3868 wrote to memory of 3880	3868	rundll32.exe	rundll32.exe
PID 3868 wrote to memory of 3880	3868	rundll32.exe	rundll32.exe
PID 3880 wrote to memory of 4072	3880	rundll32.exe	explorer.exe
PID 3880 wrote to memory of 4072	3880	rundll32.exe	explorer.exe
PID 3880 wrote to memory of 4072	3880	rundll32.exe	explorer.exe
PID 3880 wrote to memory of 4072	3880	rundll32.exe	explorer.exe
PID 3880 wrote to memory of 4072	3880	rundll32.exe	explorer.exe
PID 3368 wrote to memory of 3880	3368	WerFault.exe	rundll32.exe
PID 3368 wrote to memory of 3880	3368	WerFault.exe	rundll32.exe
PID 4072 wrote to memory of 3476	4072	explorer.exe	schtasks.exe
PID 4072 wrote to memory of 3476	4072	explorer.exe	schtasks.exe
PID 4072 wrote to memory of 3476	4072	explorer.exe	schtasks.exe
PID 2664 wrote to memory of 2520	2664	regsvr32.exe	regsvr32.exe
PID 2664 wrote to memory of 2520	2664	regsvr32.exe	regsvr32.exe
PID 2664 wrote to memory of 2520	2664	regsvr32.exe	regsvr32.exe
PID 2520 wrote to memory of 2892	2520	regsvr32.exe	explorer.exe
PID 2520 wrote to memory of 2892	2520	regsvr32.exe	explorer.exe
PID 2520 wrote to memory of 2892	2520	regsvr32.exe	explorer.exe
PID 2520 wrote to memory of 2892	2520	regsvr32.exe	explorer.exe
PID 2520 wrote to memory of 2892	2520	regsvr32.exe	explorer.exe
PID 2892 wrote to memory of 2888	2892	explorer.exe	reg.exe
PID 2892 wrote to memory of 2888	2892	explorer.exe	reg.exe
PID 2892 wrote to memory of 920	2892	explorer.exe	reg.exe
PID 2892 wrote to memory of 920	2892	explorer.exe	reg.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb5474144a8e3471ff7df9a3ba8bc69c13ef0c2356fdc569f426720c192e2e32.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3868

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb5474144a8e3471ff7df9a3ba8bc69c13ef0c2356fdc569f426720c192e2e32.dll,#1
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3880

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Suspicious use of WriteProcessMemory
PID:4072

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn qcldjhjj /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\bb5474144a8e3471ff7df9a3ba8bc69c13ef0c2356fdc569f426720c192e2e32.dll\"" /SC ONCE /Z /ST 02:02 /ET 02:14
4⤵
- Creates scheduled task(s)
PID:3476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3880 -s 660
3⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 3880 -ip 3880
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:3368

C:\Windows\system32\regsvr32.exe
regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\bb5474144a8e3471ff7df9a3ba8bc69c13ef0c2356fdc569f426720c192e2e32.dll"
1⤵
- Suspicious use of WriteProcessMemory
PID:2664

C:\Windows\SysWOW64\regsvr32.exe
-s "C:\Users\Admin\AppData\Local\Temp\bb5474144a8e3471ff7df9a3ba8bc69c13ef0c2356fdc569f426720c192e2e32.dll"
2⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2520

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:2892

C:\Windows\system32\reg.exe
C:\Windows\system32\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /t REG_DWORD /v "C:\ProgramData\Microsoft\Eaflumcq" /d "0"
4⤵
PID:2888

C:\Windows\system32\reg.exe
C:\Windows\system32\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /t REG_DWORD /v "C:\Users\Admin\AppData\Roaming\Microsoft\Eoxirn" /d "0"
4⤵
PID:920

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Disabling Security Tools

1

T1089

Modify Registry

1

T1112

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

C:\Users\Admin\AppData\Local\Temp\bb5474144a8e3471ff7df9a3ba8bc69c13ef0c2356fdc569f426720c192e2e32.dll
MD5
3900c75c8ade09e4be828cb946a5d46e

SHA1
2518175a7f2016d7c8790d19a0950ec928482065

SHA256
bb5474144a8e3471ff7df9a3ba8bc69c13ef0c2356fdc569f426720c192e2e32

SHA512
d5134e4c43343d7fb4beff466dac4c58e2d3316b6cc22ad0cdaf203fb5d81d92020609915be2d1e74c877b496b437e035dcc3c18f20c696b468f347b06f5d533

Download Submit
C:\Users\Admin\AppData\Local\Temp\bb5474144a8e3471ff7df9a3ba8bc69c13ef0c2356fdc569f426720c192e2e32.dll
MD5
3900c75c8ade09e4be828cb946a5d46e

SHA1
2518175a7f2016d7c8790d19a0950ec928482065

SHA256
bb5474144a8e3471ff7df9a3ba8bc69c13ef0c2356fdc569f426720c192e2e32

SHA512
d5134e4c43343d7fb4beff466dac4c58e2d3316b6cc22ad0cdaf203fb5d81d92020609915be2d1e74c877b496b437e035dcc3c18f20c696b468f347b06f5d533

Download Submit
memory/2520-139-0x0000000003570000-0x0000000003591000-memory.dmp

Filesize
132KB

Download
memory/2520-140-0x0000000003570000-0x0000000003591000-memory.dmp

Filesize
132KB

Download
memory/2520-141-0x0000000003570000-0x0000000003591000-memory.dmp

Filesize
132KB

Download
memory/2892-144-0x00000000032C0000-0x00000000032E1000-memory.dmp

Filesize
132KB

Download
memory/3880-131-0x00000000045B0000-0x00000000045D1000-memory.dmp

Filesize
132KB

Download
memory/3880-130-0x00000000045B0000-0x00000000045D1000-memory.dmp

Filesize
132KB

Download
memory/3880-132-0x0000000002D90000-0x0000000002DD3000-memory.dmp

Filesize
268KB

Download
memory/3880-133-0x00000000045B0000-0x00000000045D1000-memory.dmp

Filesize
132KB

Download
memory/4072-134-0x0000000002DB0000-0x0000000002DD1000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads