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

988 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

1496 schtasks.exe

pid	process
988	regsvr32.exe

pid	process
1496	schtasks.exe

Modifies data under HKEY_USERS 10 IoCs

Processes:

explorer.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Zseovaiznzlyy\6d21737a = 084acb655915cf478721ddcd3fc266cef20b9ba61a2e89500032576ad9583ee81f882d35544d7989c03c507dbbb4dea03afda94b40f4125a434667239c5e03f2b5798a9e02cff341e88243f42e980b321f34f6b9c48bcf46d0d800e67a2c31f83c5c06f5ed2c2d5a425da0	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Zseovaiznzlyy\a8955b95 = 2b0d4b87cf5fcced3a79de2514ea8e12a141d40fbfc8eff9bcd908a2861f9d43866fb94cb792653bcfb72275e83214f2fc5ecd7c272c9b30	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Zseovaiznzlyy\10293cf0 = b821f036fd75b3e00c21c0e0ec3f5503e2aa2e28cd87ba1e	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Zseovaiznzlyy\5aff8348 = e0ac4c2b3b365c5c2e5d3dbae34c602a18d570eebaf26512350ba400c8a3e2602aaa4f5a755e96	explorer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Zseovaiznzlyy	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Zseovaiznzlyy\6f605306 = 1e7fac7659debead6b8375974e76cfe74c3fe3a6c39e915474ca50e3f0839e109bc67ba6bfd1a92a42a43fd4e43c708832b51afa8c89a42f12dcd9796b49632eeee15f30b28f02dd0101bd13336386fa2a0b89c1589730ea4eb9f8f0c099ac5af20a730beefe59b4bcb1d091fe89054e39b1	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Zseovaiznzlyy\d59d141f = 2e98ff1bf3d5a60da9271ce11b4be632cb11abc0da7f77da236b146a861b32d2d4ea04b01fddfc8fb4b2bdb30c5eb0a494bd6c200414a914c6a78b457e5455b8265295552c7d6efd2e83278e465d9d17a0e19d637d71991c06f021546b9ae8d31bfe7b2f018b2928b1c581	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Zseovaiznzlyy\d7dc3463 = 24ee002cc8b190e8c9f17a98a6e0113750a7bdd91c704d456fa41ece4471ae6f80f0beecc7a4709859a9533155c40fc24ec0937b138b5a	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Zseovaiznzlyy\25b6ecbe = 381bc444fe886a787c73f5ac17598ad8e54951ef3f86a3978c5228e84e1a8a719370b92fb4d8359b599630357e5bc6444eb6af867c32b98ff7cdcab43460a679c72b574e0cbc368dd5710b8e2328cad232b2bbe4	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Zseovaiznzlyy\5aff8348 = e0ac5b2b3b3669bb8e7d7811549dcaa6bcf8	explorer.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exeregsvr32.exe

pid process

1596 rundll32.exe
988 regsvr32.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

rundll32.exeregsvr32.exe

pid process

1596 rundll32.exe
988 regsvr32.exe

pid	process
1596	rundll32.exe
988	regsvr32.exe

pid	process
1596	rundll32.exe
988	regsvr32.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

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

description	pid	process	target process
PID 1648 wrote to memory of 1596	1648	rundll32.exe	rundll32.exe
PID 1648 wrote to memory of 1596	1648	rundll32.exe	rundll32.exe
PID 1648 wrote to memory of 1596	1648	rundll32.exe	rundll32.exe
PID 1648 wrote to memory of 1596	1648	rundll32.exe	rundll32.exe
PID 1648 wrote to memory of 1596	1648	rundll32.exe	rundll32.exe
PID 1648 wrote to memory of 1596	1648	rundll32.exe	rundll32.exe
PID 1648 wrote to memory of 1596	1648	rundll32.exe	rundll32.exe
PID 1596 wrote to memory of 320	1596	rundll32.exe	explorer.exe
PID 1596 wrote to memory of 320	1596	rundll32.exe	explorer.exe
PID 1596 wrote to memory of 320	1596	rundll32.exe	explorer.exe
PID 1596 wrote to memory of 320	1596	rundll32.exe	explorer.exe
PID 1596 wrote to memory of 320	1596	rundll32.exe	explorer.exe
PID 1596 wrote to memory of 320	1596	rundll32.exe	explorer.exe
PID 320 wrote to memory of 1496	320	explorer.exe	schtasks.exe
PID 320 wrote to memory of 1496	320	explorer.exe	schtasks.exe
PID 320 wrote to memory of 1496	320	explorer.exe	schtasks.exe
PID 320 wrote to memory of 1496	320	explorer.exe	schtasks.exe
PID 1540 wrote to memory of 1532	1540	taskeng.exe	regsvr32.exe
PID 1540 wrote to memory of 1532	1540	taskeng.exe	regsvr32.exe
PID 1540 wrote to memory of 1532	1540	taskeng.exe	regsvr32.exe
PID 1540 wrote to memory of 1532	1540	taskeng.exe	regsvr32.exe
PID 1540 wrote to memory of 1532	1540	taskeng.exe	regsvr32.exe
PID 1532 wrote to memory of 988	1532	regsvr32.exe	regsvr32.exe
PID 1532 wrote to memory of 988	1532	regsvr32.exe	regsvr32.exe
PID 1532 wrote to memory of 988	1532	regsvr32.exe	regsvr32.exe
PID 1532 wrote to memory of 988	1532	regsvr32.exe	regsvr32.exe
PID 1532 wrote to memory of 988	1532	regsvr32.exe	regsvr32.exe
PID 1532 wrote to memory of 988	1532	regsvr32.exe	regsvr32.exe
PID 1532 wrote to memory of 988	1532	regsvr32.exe	regsvr32.exe
PID 988 wrote to memory of 1716	988	regsvr32.exe	explorer.exe
PID 988 wrote to memory of 1716	988	regsvr32.exe	explorer.exe
PID 988 wrote to memory of 1716	988	regsvr32.exe	explorer.exe
PID 988 wrote to memory of 1716	988	regsvr32.exe	explorer.exe
PID 988 wrote to memory of 1716	988	regsvr32.exe	explorer.exe
PID 988 wrote to memory of 1716	988	regsvr32.exe	explorer.exe
PID 1716 wrote to memory of 852	1716	explorer.exe	reg.exe
PID 1716 wrote to memory of 852	1716	explorer.exe	reg.exe
PID 1716 wrote to memory of 852	1716	explorer.exe	reg.exe
PID 1716 wrote to memory of 852	1716	explorer.exe	reg.exe
PID 1716 wrote to memory of 1336	1716	explorer.exe	reg.exe
PID 1716 wrote to memory of 1336	1716	explorer.exe	reg.exe
PID 1716 wrote to memory of 1336	1716	explorer.exe	reg.exe
PID 1716 wrote to memory of 1336	1716	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:1648

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:1596

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Suspicious use of WriteProcessMemory
PID:320

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn ngeeesjxs /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157.dll\"" /SC ONCE /Z /ST 04:02 /ET 04:14
4⤵
- Creates scheduled task(s)
PID:1496

C:\Windows\system32\taskeng.exe
taskeng.exe {7C1205CA-6AC5-49C2-A827-2F0431ED06A2} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1540

C:\Windows\system32\regsvr32.exe
regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157.dll"
2⤵
- Suspicious use of WriteProcessMemory
PID:1532

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:988

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
4⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:1716

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\Yrknnf" /d "0"
5⤵
PID:852

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\Zwdocsa" /d "0"
5⤵
PID:1336

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

SHA1
c4bbfa0c2b65a9c701fe1cae8e4fa67b8e06a513

SHA256
74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157

SHA512
8f0de45c6779aa6c4eca4af76a6950aeb7aa00e15176452086d2397e2b7d27f9d2361dcbce97866082b610fc9f017ea522c6aa7c2127292f8d3427983901b815

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

SHA1
c4bbfa0c2b65a9c701fe1cae8e4fa67b8e06a513

SHA256
74857f33982d5e23d75ef1b12059f80e45e55c94a60304c0057979cd09463157

SHA512
8f0de45c6779aa6c4eca4af76a6950aeb7aa00e15176452086d2397e2b7d27f9d2361dcbce97866082b610fc9f017ea522c6aa7c2127292f8d3427983901b815

Download Submit
memory/320-62-0x00000000000B0000-0x00000000000B2000-memory.dmp

Filesize
8KB

Download
memory/320-69-0x0000000000080000-0x00000000000A1000-memory.dmp

Filesize
132KB

Download
memory/320-65-0x0000000074F71000-0x0000000074F73000-memory.dmp

Filesize
8KB

Download
memory/320-63-0x0000000000000000-mapping.dmp

Download
memory/852-86-0x0000000000000000-mapping.dmp

Download
memory/988-76-0x0000000000590000-0x00000000005B1000-memory.dmp

Filesize
132KB

Download
memory/988-78-0x0000000000590000-0x00000000005B1000-memory.dmp

Filesize
132KB

Download
memory/988-81-0x0000000000590000-0x00000000005B1000-memory.dmp

Filesize
132KB

Download
memory/988-80-0x0000000000140000-0x0000000000141000-memory.dmp

Filesize
4KB

Download
memory/988-79-0x0000000000590000-0x00000000005B1000-memory.dmp

Filesize
132KB

Download
memory/988-77-0x0000000000590000-0x00000000005B1000-memory.dmp

Filesize
132KB

Download
memory/988-73-0x0000000000000000-mapping.dmp

Download
memory/1336-87-0x0000000000000000-mapping.dmp

Download
memory/1496-68-0x0000000000000000-mapping.dmp

Download
memory/1532-70-0x0000000000000000-mapping.dmp

Download
memory/1532-71-0x000007FEFC441000-0x000007FEFC443000-memory.dmp

Filesize
8KB

Download
memory/1596-66-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1596-56-0x0000000001C20000-0x0000000001CA4000-memory.dmp

Filesize
528KB

Download
memory/1596-67-0x0000000000620000-0x0000000000641000-memory.dmp

Filesize
132KB

Download
memory/1596-54-0x0000000000000000-mapping.dmp

Download
memory/1596-58-0x0000000000620000-0x0000000000641000-memory.dmp

Filesize
132KB

Download
memory/1596-60-0x0000000000620000-0x0000000000641000-memory.dmp

Filesize
132KB

Download
memory/1596-59-0x0000000000620000-0x0000000000641000-memory.dmp

Filesize
132KB

Download
memory/1596-61-0x0000000000620000-0x0000000000641000-memory.dmp

Filesize
132KB

Download
memory/1596-55-0x0000000076001000-0x0000000076003000-memory.dmp

Filesize
8KB

Download
memory/1596-57-0x00000000000B0000-0x00000000000B1000-memory.dmp

Filesize
4KB

Download
memory/1716-83-0x0000000000000000-mapping.dmp

Download
memory/1716-88-0x0000000000080000-0x00000000000A1000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads