qakbot | ad3d76e5b5bca64010c2317e586508581f0d0981e006e79d189af0c3ce2a67aa

General

Target

ad3d76e5b5bca64010c2317e586508581f0d0981e006e79d189af0c3ce2a67aa.dll
Size

1.8MB
MD5

2f43f8973f17f78a09839a38f6427011
SHA1

808c88c6ef79d862cb4adb957613d3b367a736c1
SHA256

ad3d76e5b5bca64010c2317e586508581f0d0981e006e79d189af0c3ce2a67aa
SHA512

0c4f39f0d850513186de75625f1e2c2365a6b31ca553df4e354650333be8c5643843fc3e21344a44f9d4a3ad227b2605b0ea658de708c51e9a012b41d950f4b9

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

2044 regsvr32.exe

pid	process
2044	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

1160 schtasks.exe

pid	process
1160	schtasks.exe

Modifies data under HKEY_USERS 10 IoCs

Processes:

explorer.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Dpysivyb\bc0553d8 = bd4f34256abd228542831af0f3d000ad30f70297c1e94bcc03edad3b50d917df9fb5527910b6f9005bb790	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Dpysivyb\899a8396 = 29f7c4704806b9156a3764fdaa5c3b789cfef15cbfab8a0d93137e47cce81721cf5b07411ffcb0e4636023bda78bcf7fe2b51d6dc59c382098dc7d192f30dfd0ca136c32e7183c46d9bc	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Dpysivyb\f6d3ec60 = fbb6cefa813887b25407f1785569b7651e2420c52491bbe0f1277dc953e9a6157e254582db08e72aabd0870f50ec3c3c	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Dpysivyb\c34c3c2e = 5fbaa721b604448de026a8e7b2e74c174c1489e00a3b9872f37b7d9088473bbfc2712ef495479b56c6325c4c5271da7e874fe6cfa603cdffa95329bd1f8d4d81e029856a03fe3c72ebafd8e98dc1895c73a311222db0cc0359b35f0ce1777fdde2d17f29684adbb1c64291b3ba225bd5b6e2569cf5fa796d54433e29a532b7bcbb0bbb	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Dpysivyb\c10d1c52 = 52e055b75a852c81283a883954397d6f944cf39298dc90a476270d80c50663fdc890c0115c75d21074c3de50acf57b326b6afb09e9bebff54938388c5cbacd976d02619658c82959c546f3b570c80f44bc73606bc449181473e5001f06a73e292291250e879ac901114bd21b0521fdadafd9	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Dpysivyb\4b934bd = 8eda77259c4888085a95af20176e38191967da4cd44e516f6c37828cb7cccba29c4159666daac362b8027f558e519a69889968a5b80888809898f5079c3202408d2d31cd5c368cd77e739864940c36cedfe9987aecb735c9b07ad1f4	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Dpysivyb\7bf05b4b = 565538404945c8d4791789c71447e3031ede653e7c58389c3f1cfbb2af93d836c8631add6d5ab7f67c792ac4f55215cc458fa02f2a04599a60670fbfb12be9e74557682425	explorer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Dpysivyb	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Dpysivyb\f6d3ec60 = fbb6d9fa8138b2f86e9989ed127974a4745da26868ba42c68856b3	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Dpysivyb\79b17b37 = 0816f0ce9bd8e0d86f437e08c2438456889a26985dbcf6	explorer.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1212 regsvr32.exe
2044 regsvr32.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1212 regsvr32.exe
2044 regsvr32.exe

Suspicious use of FindShellTrayWindow 40 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid	process
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe
2044	regsvr32.exe

Suspicious use of SendNotifyMessage 20 IoCs

Processes:

regsvr32.exe

pid	process
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe
1212	regsvr32.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

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

description	pid	process	target process
PID 1552 wrote to memory of 1212	1552	regsvr32.exe	regsvr32.exe
PID 1552 wrote to memory of 1212	1552	regsvr32.exe	regsvr32.exe
PID 1552 wrote to memory of 1212	1552	regsvr32.exe	regsvr32.exe
PID 1552 wrote to memory of 1212	1552	regsvr32.exe	regsvr32.exe
PID 1552 wrote to memory of 1212	1552	regsvr32.exe	regsvr32.exe
PID 1552 wrote to memory of 1212	1552	regsvr32.exe	regsvr32.exe
PID 1552 wrote to memory of 1212	1552	regsvr32.exe	regsvr32.exe
PID 1212 wrote to memory of 2036	1212	regsvr32.exe	explorer.exe
PID 1212 wrote to memory of 2036	1212	regsvr32.exe	explorer.exe
PID 1212 wrote to memory of 2036	1212	regsvr32.exe	explorer.exe
PID 1212 wrote to memory of 2036	1212	regsvr32.exe	explorer.exe
PID 1212 wrote to memory of 2036	1212	regsvr32.exe	explorer.exe
PID 1212 wrote to memory of 2036	1212	regsvr32.exe	explorer.exe
PID 2036 wrote to memory of 1160	2036	explorer.exe	schtasks.exe
PID 2036 wrote to memory of 1160	2036	explorer.exe	schtasks.exe
PID 2036 wrote to memory of 1160	2036	explorer.exe	schtasks.exe
PID 2036 wrote to memory of 1160	2036	explorer.exe	schtasks.exe
PID 1880 wrote to memory of 1464	1880	taskeng.exe	regsvr32.exe
PID 1880 wrote to memory of 1464	1880	taskeng.exe	regsvr32.exe
PID 1880 wrote to memory of 1464	1880	taskeng.exe	regsvr32.exe
PID 1880 wrote to memory of 1464	1880	taskeng.exe	regsvr32.exe
PID 1880 wrote to memory of 1464	1880	taskeng.exe	regsvr32.exe
PID 1464 wrote to memory of 2044	1464	regsvr32.exe	regsvr32.exe
PID 1464 wrote to memory of 2044	1464	regsvr32.exe	regsvr32.exe
PID 1464 wrote to memory of 2044	1464	regsvr32.exe	regsvr32.exe
PID 1464 wrote to memory of 2044	1464	regsvr32.exe	regsvr32.exe
PID 1464 wrote to memory of 2044	1464	regsvr32.exe	regsvr32.exe
PID 1464 wrote to memory of 2044	1464	regsvr32.exe	regsvr32.exe
PID 1464 wrote to memory of 2044	1464	regsvr32.exe	regsvr32.exe
PID 2044 wrote to memory of 1844	2044	regsvr32.exe	explorer.exe
PID 2044 wrote to memory of 1844	2044	regsvr32.exe	explorer.exe
PID 2044 wrote to memory of 1844	2044	regsvr32.exe	explorer.exe
PID 2044 wrote to memory of 1844	2044	regsvr32.exe	explorer.exe
PID 2044 wrote to memory of 1844	2044	regsvr32.exe	explorer.exe
PID 2044 wrote to memory of 1844	2044	regsvr32.exe	explorer.exe
PID 1844 wrote to memory of 1772	1844	explorer.exe	reg.exe
PID 1844 wrote to memory of 1772	1844	explorer.exe	reg.exe
PID 1844 wrote to memory of 1772	1844	explorer.exe	reg.exe
PID 1844 wrote to memory of 1772	1844	explorer.exe	reg.exe
PID 1844 wrote to memory of 824	1844	explorer.exe	reg.exe
PID 1844 wrote to memory of 824	1844	explorer.exe	reg.exe
PID 1844 wrote to memory of 824	1844	explorer.exe	reg.exe
PID 1844 wrote to memory of 824	1844	explorer.exe	reg.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ad3d76e5b5bca64010c2317e586508581f0d0981e006e79d189af0c3ce2a67aa.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1552

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\ad3d76e5b5bca64010c2317e586508581f0d0981e006e79d189af0c3ce2a67aa.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:1212

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Suspicious use of WriteProcessMemory
PID:2036

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn mxdzkndia /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\ad3d76e5b5bca64010c2317e586508581f0d0981e006e79d189af0c3ce2a67aa.dll\"" /SC ONCE /Z /ST 20:02 /ET 20:14
4⤵
- Creates scheduled task(s)
PID:1160

C:\Windows\system32\taskeng.exe
taskeng.exe {15A9FAFA-5C37-4F31-8102-AC9E485CCA55} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1880

C:\Windows\system32\regsvr32.exe
regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\ad3d76e5b5bca64010c2317e586508581f0d0981e006e79d189af0c3ce2a67aa.dll"
2⤵
- Suspicious use of WriteProcessMemory
PID:1464

C:\Windows\SysWOW64\regsvr32.exe
-s "C:\Users\Admin\AppData\Local\Temp\ad3d76e5b5bca64010c2317e586508581f0d0981e006e79d189af0c3ce2a67aa.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:2044

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
4⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:1844

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\Xhrnyfe" /d "0"
5⤵
PID:1772

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\Ouiups" /d "0"
5⤵
PID:824

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\ad3d76e5b5bca64010c2317e586508581f0d0981e006e79d189af0c3ce2a67aa.dll
MD5
2f43f8973f17f78a09839a38f6427011

SHA1
808c88c6ef79d862cb4adb957613d3b367a736c1

SHA256
ad3d76e5b5bca64010c2317e586508581f0d0981e006e79d189af0c3ce2a67aa

SHA512
0c4f39f0d850513186de75625f1e2c2365a6b31ca553df4e354650333be8c5643843fc3e21344a44f9d4a3ad227b2605b0ea658de708c51e9a012b41d950f4b9

Download Submit
C:\Windows\System32\CatRoot2\dberr.txt
MD5
bdcfe9935f4c1b9dc2f0e33b310a215f

SHA1
b0d0213e8f58abe84dfd700c711185a4747fb638

SHA256
59bced95972ee52016a8aaa5005010ad1c63b9ea4403e9952a10126864e2a7f1

SHA512
a4b315d8a71d0ae3553e688a358ebbc2469d6eca4dccc2324751273f84e3fa6b769bc94b726d14f5cc18f68a1d1b3a36d0b244d288b08fd8d2f09b3150ac56e9

Download Submit
\??\PIPE\wkssvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\Users\Admin\AppData\Local\Temp\ad3d76e5b5bca64010c2317e586508581f0d0981e006e79d189af0c3ce2a67aa.dll
MD5
2f43f8973f17f78a09839a38f6427011

SHA1
808c88c6ef79d862cb4adb957613d3b367a736c1

SHA256
ad3d76e5b5bca64010c2317e586508581f0d0981e006e79d189af0c3ce2a67aa

SHA512
0c4f39f0d850513186de75625f1e2c2365a6b31ca553df4e354650333be8c5643843fc3e21344a44f9d4a3ad227b2605b0ea658de708c51e9a012b41d950f4b9

Download Submit
memory/824-79-0x0000000000000000-mapping.dmp

Download
memory/1160-62-0x0000000000000000-mapping.dmp

Download
memory/1212-60-0x00000000001F0000-0x0000000000270000-memory.dmp

Filesize
512KB

Download
memory/1212-61-0x0000000010000000-0x00000000101DC000-memory.dmp

Filesize
1.9MB

Download
memory/1212-55-0x0000000076C91000-0x0000000076C93000-memory.dmp

Filesize
8KB

Download
memory/1212-54-0x0000000000000000-mapping.dmp

Download
memory/1464-64-0x0000000000000000-mapping.dmp

Download
memory/1552-53-0x000007FEFC521000-0x000007FEFC523000-memory.dmp

Filesize
8KB

Download
memory/1772-76-0x0000000000000000-mapping.dmp

Download
memory/1844-72-0x0000000000000000-mapping.dmp

Download
memory/1844-78-0x00000000000C0000-0x00000000000E1000-memory.dmp

Filesize
132KB

Download
memory/2036-63-0x0000000000110000-0x0000000000131000-memory.dmp

Filesize
132KB

Download
memory/2036-59-0x0000000074D81000-0x0000000074D83000-memory.dmp

Filesize
8KB

Download
memory/2036-57-0x0000000000000000-mapping.dmp

Download
memory/2036-56-0x00000000000C0000-0x00000000000C2000-memory.dmp

Filesize
8KB

Download
memory/2044-67-0x0000000000000000-mapping.dmp

Download
memory/2044-77-0x00000000000D0000-0x00000000000D1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads