qakbot | 389b1cd20f6a09afcb6bc277fd30c221fe22674314aaa86b404cc20aa5896ab0

General

Target

389b1cd20f6a09afcb6bc277fd30c221fe22674314aaa86b404cc20aa5896ab0.dll
Size

1.8MB
MD5

b03925d1b6456fda778ab3fce1288a96
SHA1

5e1bc81ae008bd4e31412df04d22d2f02a34b452
SHA256

389b1cd20f6a09afcb6bc277fd30c221fe22674314aaa86b404cc20aa5896ab0
SHA512

5655f2a21dd3d54e0491757ef66762e8bc79c2440a24b800d2c6e1c40e3ea2925dfdf5ba6ac7ecc6b9e9a66db3616f4753e8d8f43b98839dca68a8c457304f73

Score

10^/10

qakbot cullinan 1640170781 banker evasion stealer trojan

Malware Config

Extracted

Family

qakbot

Version

403.10

Botnet

cullinan

Campaign

1640170781

C2

14.96.108.245:61202

182.191.92.203:995

136.232.34.70:443

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

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

1816 regsvr32.exe

pid	process
1816	regsvr32.exe

Drops file in System32 directory 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	ioc	process
File opened for modification	C:\Windows\System32\CatRoot2\dberr.txt	regsvr32.exe
File opened for modification	C:\Windows\System32\CatRoot2\dberr.txt	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

1012 schtasks.exe

pid	process
1012	schtasks.exe

Modifies data under HKEY_USERS 10 IoCs

Processes:

explorer.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Fyvkqyu\152415f0 = 58e23cac1c590da83886bc9868d91fec29329ecdb9a2578599944db219dfe5c9cf2abb10c0cfd61e7d672c3ce95042da3a12522493829b9debd7605b8d	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Fyvkqyu\d0903d1f = 156946a2059d46a5957f86659741c585e75c4084cead8168b4c284d6db91b3f57afbc22a53affbd5446cc7ea41335689443f3138efd46da033df80d7265b66dcdcc600c0a02b77f734577d39503d96202c0268012296bb06755868d8e1452e7827b2dfca608b94ad	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Fyvkqyu\682c5a7a = 04ef7888952ea407b131cb5db61b2d663675fc691aa15a45a6a542fd0c7e7621600b962aea40fc4649e4a2a3b34fa0377b06e8	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Fyvkqyu\5db38a34 = 93eaa31002b7d250b0e9551b147e07307980576571358f1ab92120947ef9d7f57bb845ef73bbf8cf9c87e598d114496316ef8f56586e07c546ca567e41351dd4f67fb4e305011de93a568bd35ce378a90d7e8eabde3d0a17676d17762388fa0f0f7c	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Fyvkqyu\22fae5c2 = 502346f5eb8743a30e1d42cd2b63877fe2d804d12c42e870d21ed8633a69e24998e84b521c295dcdb341b6574d5e65445abb73c189fbe190e17a69cc78f8e458869839103d7a6b12a73417	explorer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Fyvkqyu	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Fyvkqyu\22fae5c2 = 502351f5eb8776bd6606111e8ba030f741dc437862ad70f85ab6b683c78a60a62a7f5335d47e4644f2e7bd6b16f1e065670cccf70586	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Fyvkqyu\1765358c = 484936b6953f7cd706e46b1e9566f855b18cdb043de64c4aac971dd7967a9cbdffdaa71001fbb863cbb52625ca83c97046855692b1c87588e32e19c520309f0bdeba510c116150bf3e621a3ad378ff8e687eac93dc070020f42de815d37af68787c35a3649d9cbafb9a7d0dd54be73c4fa6cb3e08448543a3d5be92027edb4afca0fd9c66f891a009581d7b805ac715c88d3faf9a8807b18fd670e2ac0b8c5c26697d9a6cfc832ec9466c8ebe6	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Fyvkqyu\ad987295 = 7411d16501b033e05d3b91ec89d258556e115ebb	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Fyvkqyu\afd952e9 = 902cd2af7c7fac32c69106ec8f7bf5021c7106b869db1099c4015d6dac88f3dbd2259218307d141782	explorer.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

744 regsvr32.exe
1816 regsvr32.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

744 regsvr32.exe
1816 regsvr32.exe

Suspicious use of FindShellTrayWindow 40 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid	process
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe
1816	regsvr32.exe

Suspicious use of SendNotifyMessage 20 IoCs

Processes:

regsvr32.exe

pid	process
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe
744	regsvr32.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

regsvr32.exeregsvr32.exeexplorer.exetaskeng.exeregsvr32.exeregsvr32.exeexplorer.exe

description	pid	process	target process
PID 740 wrote to memory of 744	740	regsvr32.exe	regsvr32.exe
PID 740 wrote to memory of 744	740	regsvr32.exe	regsvr32.exe
PID 740 wrote to memory of 744	740	regsvr32.exe	regsvr32.exe
PID 740 wrote to memory of 744	740	regsvr32.exe	regsvr32.exe
PID 740 wrote to memory of 744	740	regsvr32.exe	regsvr32.exe
PID 740 wrote to memory of 744	740	regsvr32.exe	regsvr32.exe
PID 740 wrote to memory of 744	740	regsvr32.exe	regsvr32.exe
PID 744 wrote to memory of 468	744	regsvr32.exe	explorer.exe
PID 744 wrote to memory of 468	744	regsvr32.exe	explorer.exe
PID 744 wrote to memory of 468	744	regsvr32.exe	explorer.exe
PID 744 wrote to memory of 468	744	regsvr32.exe	explorer.exe
PID 744 wrote to memory of 468	744	regsvr32.exe	explorer.exe
PID 744 wrote to memory of 468	744	regsvr32.exe	explorer.exe
PID 468 wrote to memory of 1012	468	explorer.exe	schtasks.exe
PID 468 wrote to memory of 1012	468	explorer.exe	schtasks.exe
PID 468 wrote to memory of 1012	468	explorer.exe	schtasks.exe
PID 468 wrote to memory of 1012	468	explorer.exe	schtasks.exe
PID 1860 wrote to memory of 788	1860	taskeng.exe	regsvr32.exe
PID 1860 wrote to memory of 788	1860	taskeng.exe	regsvr32.exe
PID 1860 wrote to memory of 788	1860	taskeng.exe	regsvr32.exe
PID 1860 wrote to memory of 788	1860	taskeng.exe	regsvr32.exe
PID 1860 wrote to memory of 788	1860	taskeng.exe	regsvr32.exe
PID 788 wrote to memory of 1816	788	regsvr32.exe	regsvr32.exe
PID 788 wrote to memory of 1816	788	regsvr32.exe	regsvr32.exe
PID 788 wrote to memory of 1816	788	regsvr32.exe	regsvr32.exe
PID 788 wrote to memory of 1816	788	regsvr32.exe	regsvr32.exe
PID 788 wrote to memory of 1816	788	regsvr32.exe	regsvr32.exe
PID 788 wrote to memory of 1816	788	regsvr32.exe	regsvr32.exe
PID 788 wrote to memory of 1816	788	regsvr32.exe	regsvr32.exe
PID 1816 wrote to memory of 1900	1816	regsvr32.exe	explorer.exe
PID 1816 wrote to memory of 1900	1816	regsvr32.exe	explorer.exe
PID 1816 wrote to memory of 1900	1816	regsvr32.exe	explorer.exe
PID 1816 wrote to memory of 1900	1816	regsvr32.exe	explorer.exe
PID 1816 wrote to memory of 1900	1816	regsvr32.exe	explorer.exe
PID 1816 wrote to memory of 1900	1816	regsvr32.exe	explorer.exe
PID 1900 wrote to memory of 480	1900	explorer.exe	reg.exe
PID 1900 wrote to memory of 480	1900	explorer.exe	reg.exe
PID 1900 wrote to memory of 480	1900	explorer.exe	reg.exe
PID 1900 wrote to memory of 480	1900	explorer.exe	reg.exe
PID 1900 wrote to memory of 1904	1900	explorer.exe	reg.exe
PID 1900 wrote to memory of 1904	1900	explorer.exe	reg.exe
PID 1900 wrote to memory of 1904	1900	explorer.exe	reg.exe
PID 1900 wrote to memory of 1904	1900	explorer.exe	reg.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\389b1cd20f6a09afcb6bc277fd30c221fe22674314aaa86b404cc20aa5896ab0.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:740

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\389b1cd20f6a09afcb6bc277fd30c221fe22674314aaa86b404cc20aa5896ab0.dll
2⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:744

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Suspicious use of WriteProcessMemory
PID:468

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn wmqbzgai /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\389b1cd20f6a09afcb6bc277fd30c221fe22674314aaa86b404cc20aa5896ab0.dll\"" /SC ONCE /Z /ST 13:02 /ET 13:14
4⤵
- Creates scheduled task(s)
PID:1012

C:\Windows\system32\taskeng.exe
taskeng.exe {24120CBF-F49C-476C-89FD-5E991F46C44F} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1860

C:\Windows\system32\regsvr32.exe
regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\389b1cd20f6a09afcb6bc277fd30c221fe22674314aaa86b404cc20aa5896ab0.dll"
2⤵
- Suspicious use of WriteProcessMemory
PID:788

C:\Windows\SysWOW64\regsvr32.exe
-s "C:\Users\Admin\AppData\Local\Temp\389b1cd20f6a09afcb6bc277fd30c221fe22674314aaa86b404cc20aa5896ab0.dll"
3⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1816

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
4⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:1900

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\Wtlyzyeujyu" /d "0"
5⤵
PID:480

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\Cigrmj" /d "0"
5⤵
PID:1904

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\389b1cd20f6a09afcb6bc277fd30c221fe22674314aaa86b404cc20aa5896ab0.dll
MD5
b03925d1b6456fda778ab3fce1288a96

SHA1
5e1bc81ae008bd4e31412df04d22d2f02a34b452

SHA256
389b1cd20f6a09afcb6bc277fd30c221fe22674314aaa86b404cc20aa5896ab0

SHA512
5655f2a21dd3d54e0491757ef66762e8bc79c2440a24b800d2c6e1c40e3ea2925dfdf5ba6ac7ecc6b9e9a66db3616f4753e8d8f43b98839dca68a8c457304f73

Download Submit
C:\Windows\System32\CatRoot2\dberr.txt
MD5
ca67dc4439a79ed0fbeb54a7ba5e7ba5

SHA1
c9dec9a54c9cba1ffdca88d30d0aca22c7ddb1da

SHA256
4bb90107e10a5a5bdcb053bc1ec46406ac2eea2f71795ff22061f929dab2a461

SHA512
4f98f0c6c61bf61400886e100443e1989b01fa2e33cb74b9b5ee7b3740f935612c9fb8f6d971a52094690a2ffae9afa6197596f52e441626dd656b28b67cac4f

Download Submit
\??\PIPE\wkssvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\Users\Admin\AppData\Local\Temp\389b1cd20f6a09afcb6bc277fd30c221fe22674314aaa86b404cc20aa5896ab0.dll
MD5
b03925d1b6456fda778ab3fce1288a96

SHA1
5e1bc81ae008bd4e31412df04d22d2f02a34b452

SHA256
389b1cd20f6a09afcb6bc277fd30c221fe22674314aaa86b404cc20aa5896ab0

SHA512
5655f2a21dd3d54e0491757ef66762e8bc79c2440a24b800d2c6e1c40e3ea2925dfdf5ba6ac7ecc6b9e9a66db3616f4753e8d8f43b98839dca68a8c457304f73

Download Submit
memory/468-64-0x0000000000080000-0x00000000000A1000-memory.dmp

Filesize
132KB

Download
memory/468-60-0x00000000000B0000-0x00000000000B2000-memory.dmp

Filesize
8KB

Download
memory/468-61-0x0000000000000000-mapping.dmp

Download
memory/468-63-0x0000000074C41000-0x0000000074C43000-memory.dmp

Filesize
8KB

Download
memory/480-78-0x0000000000000000-mapping.dmp

Download
memory/740-55-0x000007FEFC241000-0x000007FEFC243000-memory.dmp

Filesize
8KB

Download
memory/744-58-0x0000000000140000-0x0000000000141000-memory.dmp

Filesize
4KB

Download
memory/744-59-0x0000000010000000-0x00000000101DC000-memory.dmp

Filesize
1.9MB

Download
memory/744-57-0x00000000763B1000-0x00000000763B3000-memory.dmp

Filesize
8KB

Download
memory/744-56-0x0000000000000000-mapping.dmp

Download
memory/788-66-0x0000000000000000-mapping.dmp

Download
memory/1012-65-0x0000000000000000-mapping.dmp

Download
memory/1816-69-0x0000000000000000-mapping.dmp

Download
memory/1900-74-0x0000000000000000-mapping.dmp

Download
memory/1900-80-0x0000000000080000-0x00000000000A1000-memory.dmp

Filesize
132KB

Download
memory/1904-79-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads