qakbot | 74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157

General

Target

74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157.dll
Size

512KB
MD5

1f5c1b7d2da1a526ff55b018b1e6bafc
SHA1

c4bbfa0c2b65a9c701fe1cae8e4fa67b8e06a513
SHA256

74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157
SHA512

8f0de45c6779aa6c4eca4af76a6950aeb7aa00e15176452086d2397e2b7d27f9d2361dcbce97866082b610fc9f017ea522c6aa7c2127292f8d3427983901b815

Score

10^/10

qakbot cullinan 1639742517 banker evasion stealer trojan

Malware Config

Extracted

Family

qakbot

Version

403.10

Botnet

cullinan

Campaign

1639742517

C2

50.238.6.36:443

92.167.4.71:2222

89.137.52.44:443

105.198.236.99:995

117.248.109.38:21

106.51.48.170:50001

120.150.218.241:995

190.73.3.148:2222

182.56.53.180:443

186.64.87.213:443

103.142.10.177:443

65.100.174.110:443

96.21.251.127:2222

24.95.61.62:443

194.36.28.26:443

182.191.92.203:995

41.228.22.180:443

63.143.92.99:995

41.200.112.42:443

103.143.8.71:995

Attributes

salt
jHxastDcds)oMc=jvh7wdUhxcsdt2

Signatures

Qakbot/Qbot
Qbot or Qakbot is a sophisticated worm with banking capabilities.
trojan banker stealer qakbot
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Loads dropped DLL 1 IoCs

Processes:

regsvr32.exe

pid process

992 regsvr32.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

568 schtasks.exe

pid	process
992	regsvr32.exe

pid	process
568	schtasks.exe

Modifies data under HKEY_USERS 10 IoCs

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Yxxghgjnfpuoo	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Yxxghgjnfpuoo\21fec84e = 297fe161d6ac2d08cd0fd7610e52f953ac7f55d47a9519baead411604cef26098d0796706b33871b208f792180b06655a10bad9f7741dca469666c8b6b4e9930f81a47a2c050d2e0a159f610c0441b33113a2e6b1964c4e39a8586979a372743689b38a674d0a99805c3ed71	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Yxxghgjnfpuoo\23bfe832 = 3188d8825c8817ccb8cf5b95482f859dbcc078b6c9f67fd05bbbf397	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Yxxghgjnfpuoo\d1d530ef = 38b3bb9e5ac0905aceb6e733480d483e34315338fc265412c0b811f7ce06b869173090150f32389d072c462beb209c83c3a382c239499f1472a10e322aa5a3483467d9f4fbecb71a5c8c7e3fc642654fb2f7dba5	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Yxxghgjnfpuoo\ae9c5f19 = ae4bac799d1517f66e0764fe3a3b0283c251cbfb648bd7d57a0dae2070aba14d23c5411b81c1b28a3b8552c69cf587041e07590990b1ae0869884e89100e91d9dacda8583d92a6db331e9165b411ba85c49929d7420a6b76c4d814037e3e48d99019e7cc738fb1f2beec77ffa98fc178dc1ca6d454b57ec48428ec3b30878751	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Yxxghgjnfpuoo\ae9c5f19 = ae4bbb799d1522e38d2634cab2b9ca4364923afe4a84d285843326ff78ce1d5233f2255657a2802d1513f45ab6dfc55ff1341efe424500b27cfb95b8a6c0aee52b64e6cba9e2abb9a4118d935334d9ad07946a691e0b035ac17b0c86250a4d213bc77f984a40dd178d2f72	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Yxxghgjnfpuoo\9b038f57 = 1d3372e3f6b8e6d7597efc9044b921ca2ba1c8106d6eafc794ab1b48bfcf13f876c330c89bc4ad8e2645f1deb0e9d2d3ce6256c6cc6d2809411584a1aa3222d768e75d12bb5b61d34ee836d3ca515a27ae5118fbf9a9d004d9af3679cae490ab734f7c7fb180dbc588045e119036ea3ee5b9b7163807429c51ea22014242d471ade6d745ea891ead51c0478325f223bd61	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Yxxghgjnfpuoo\9942af2b = 3cf42092c7a5b215fb87f4b705d49811dd0f47bb9bc2035486261bcb9c1c31af57312562a33f41667549de	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Yxxghgjnfpuoo\5cf687c4 = 8ed1a7b29319edb36e1634be27a39b485b703b287e4dbb633c728cf68a3ad205e5d55090b121d4693c31e72c57e6cf6f9c9b37f9093e65840790a380ec09acb6925bb99925d3a4246234d03586408a5476012bc447297eccc6e2	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Yxxghgjnfpuoo\e44ae0a1 = a9515f21e6b6aed4e9db3db670a1d8	explorer.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exeregsvr32.exe

pid process

1540 rundll32.exe
992 regsvr32.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

rundll32.exeregsvr32.exe

pid process

1540 rundll32.exe
992 regsvr32.exe

pid	process
1540	rundll32.exe
992	regsvr32.exe

pid	process
1540	rundll32.exe
992	regsvr32.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

rundll32.exerundll32.exeexplorer.exetaskeng.exeregsvr32.exeregsvr32.exeexplorer.exe

description	pid	process	target process
PID 832 wrote to memory of 1540	832	rundll32.exe	rundll32.exe
PID 832 wrote to memory of 1540	832	rundll32.exe	rundll32.exe
PID 832 wrote to memory of 1540	832	rundll32.exe	rundll32.exe
PID 832 wrote to memory of 1540	832	rundll32.exe	rundll32.exe
PID 832 wrote to memory of 1540	832	rundll32.exe	rundll32.exe
PID 832 wrote to memory of 1540	832	rundll32.exe	rundll32.exe
PID 832 wrote to memory of 1540	832	rundll32.exe	rundll32.exe
PID 1540 wrote to memory of 792	1540	rundll32.exe	explorer.exe
PID 1540 wrote to memory of 792	1540	rundll32.exe	explorer.exe
PID 1540 wrote to memory of 792	1540	rundll32.exe	explorer.exe
PID 1540 wrote to memory of 792	1540	rundll32.exe	explorer.exe
PID 1540 wrote to memory of 792	1540	rundll32.exe	explorer.exe
PID 1540 wrote to memory of 792	1540	rundll32.exe	explorer.exe
PID 792 wrote to memory of 568	792	explorer.exe	schtasks.exe
PID 792 wrote to memory of 568	792	explorer.exe	schtasks.exe
PID 792 wrote to memory of 568	792	explorer.exe	schtasks.exe
PID 792 wrote to memory of 568	792	explorer.exe	schtasks.exe
PID 1716 wrote to memory of 1196	1716	taskeng.exe	regsvr32.exe
PID 1716 wrote to memory of 1196	1716	taskeng.exe	regsvr32.exe
PID 1716 wrote to memory of 1196	1716	taskeng.exe	regsvr32.exe
PID 1716 wrote to memory of 1196	1716	taskeng.exe	regsvr32.exe
PID 1716 wrote to memory of 1196	1716	taskeng.exe	regsvr32.exe
PID 1196 wrote to memory of 992	1196	regsvr32.exe	regsvr32.exe
PID 1196 wrote to memory of 992	1196	regsvr32.exe	regsvr32.exe
PID 1196 wrote to memory of 992	1196	regsvr32.exe	regsvr32.exe
PID 1196 wrote to memory of 992	1196	regsvr32.exe	regsvr32.exe
PID 1196 wrote to memory of 992	1196	regsvr32.exe	regsvr32.exe
PID 1196 wrote to memory of 992	1196	regsvr32.exe	regsvr32.exe
PID 1196 wrote to memory of 992	1196	regsvr32.exe	regsvr32.exe
PID 992 wrote to memory of 1460	992	regsvr32.exe	explorer.exe
PID 992 wrote to memory of 1460	992	regsvr32.exe	explorer.exe
PID 992 wrote to memory of 1460	992	regsvr32.exe	explorer.exe
PID 992 wrote to memory of 1460	992	regsvr32.exe	explorer.exe
PID 992 wrote to memory of 1460	992	regsvr32.exe	explorer.exe
PID 992 wrote to memory of 1460	992	regsvr32.exe	explorer.exe
PID 1460 wrote to memory of 676	1460	explorer.exe	reg.exe
PID 1460 wrote to memory of 676	1460	explorer.exe	reg.exe
PID 1460 wrote to memory of 676	1460	explorer.exe	reg.exe
PID 1460 wrote to memory of 676	1460	explorer.exe	reg.exe
PID 1460 wrote to memory of 1120	1460	explorer.exe	reg.exe
PID 1460 wrote to memory of 1120	1460	explorer.exe	reg.exe
PID 1460 wrote to memory of 1120	1460	explorer.exe	reg.exe
PID 1460 wrote to memory of 1120	1460	explorer.exe	reg.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:832

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157.dll,#1
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1540

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Suspicious use of WriteProcessMemory
PID:792

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn tjooqct /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157.dll\"" /SC ONCE /Z /ST 14:41 /ET 14:53
4⤵
- Creates scheduled task(s)
PID:568

C:\Windows\system32\taskeng.exe
taskeng.exe {464865E1-346A-4A33-8EA3-28F1D2B62226} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1716

C:\Windows\system32\regsvr32.exe
regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157.dll"
2⤵
- Suspicious use of WriteProcessMemory
PID:1196

C:\Windows\SysWOW64\regsvr32.exe
-s "C:\Users\Admin\AppData\Local\Temp\74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157.dll"
3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:992

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
4⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:1460

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\Ulyziaji" /d "0"
5⤵
PID:676

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\Pkwkntz" /d "0"
5⤵
PID:1120

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157.dll
MD5
1f5c1b7d2da1a526ff55b018b1e6bafc

SHA1
c4bbfa0c2b65a9c701fe1cae8e4fa67b8e06a513

SHA256
74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157

SHA512
8f0de45c6779aa6c4eca4af76a6950aeb7aa00e15176452086d2397e2b7d27f9d2361dcbce97866082b610fc9f017ea522c6aa7c2127292f8d3427983901b815

Download Submit
\??\PIPE\wkssvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\Users\Admin\AppData\Local\Temp\74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157.dll
MD5
1f5c1b7d2da1a526ff55b018b1e6bafc

SHA1
c4bbfa0c2b65a9c701fe1cae8e4fa67b8e06a513

SHA256
74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157

SHA512
8f0de45c6779aa6c4eca4af76a6950aeb7aa00e15176452086d2397e2b7d27f9d2361dcbce97866082b610fc9f017ea522c6aa7c2127292f8d3427983901b815

Download Submit
memory/568-68-0x0000000000000000-mapping.dmp

Download
memory/676-88-0x0000000000000000-mapping.dmp

Download
memory/792-64-0x00000000000F0000-0x00000000000F2000-memory.dmp

Filesize
8KB

Download
memory/792-69-0x00000000000C0000-0x00000000000E1000-memory.dmp

Filesize
132KB

Download
memory/792-67-0x00000000749C1000-0x00000000749C3000-memory.dmp

Filesize
8KB

Download
memory/792-65-0x0000000000000000-mapping.dmp

Download
memory/992-82-0x00000000005B0000-0x00000000005D1000-memory.dmp

Filesize
132KB

Download
memory/992-77-0x00000000005B0000-0x00000000005D1000-memory.dmp

Filesize
132KB

Download
memory/992-78-0x00000000005B0000-0x00000000005D1000-memory.dmp

Filesize
132KB

Download
memory/992-79-0x00000000005B0000-0x00000000005D1000-memory.dmp

Filesize
132KB

Download
memory/992-80-0x00000000005B0000-0x00000000005D1000-memory.dmp

Filesize
132KB

Download
memory/992-81-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/992-76-0x00000000004F0000-0x0000000000574000-memory.dmp

Filesize
528KB

Download
memory/992-73-0x0000000000000000-mapping.dmp

Download
memory/1120-89-0x0000000000000000-mapping.dmp

Download
memory/1196-71-0x000007FEFBE91000-0x000007FEFBE93000-memory.dmp

Filesize
8KB

Download
memory/1196-70-0x0000000000000000-mapping.dmp

Download
memory/1460-84-0x0000000000000000-mapping.dmp

Download
memory/1460-90-0x0000000000080000-0x00000000000A1000-memory.dmp

Filesize
132KB

Download
memory/1540-60-0x0000000000330000-0x0000000000351000-memory.dmp

Filesize
132KB

Download
memory/1540-62-0x0000000000270000-0x0000000000291000-memory.dmp

Filesize
132KB

Download
memory/1540-59-0x0000000000330000-0x0000000000351000-memory.dmp

Filesize
132KB

Download
memory/1540-54-0x0000000000000000-mapping.dmp

Download
memory/1540-58-0x0000000000330000-0x0000000000351000-memory.dmp

Filesize
132KB

Download
memory/1540-61-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/1540-57-0x0000000000330000-0x0000000000351000-memory.dmp

Filesize
132KB

Download
memory/1540-56-0x00000000003A0000-0x0000000000424000-memory.dmp

Filesize
528KB

Download
memory/1540-55-0x0000000075891000-0x0000000075893000-memory.dmp

Filesize
8KB

Download
memory/1540-63-0x0000000000330000-0x0000000000351000-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