qakbot | 670e990631c0b98ccdd7701c2136f0cb8863a308b07abd0d64480c8a2412bde4

General

Target

tmp/670e990631c0b98ccdd7701c2136f0cb8863a308b07abd0d64480c8a2412bde4.exe.dll
Size

120KB
MD5

51083dbdc8f7d9bb9d1a600849c6895a
SHA1

9c63e4caac2f4e94cb013609a02018a1a2315114
SHA256

670e990631c0b98ccdd7701c2136f0cb8863a308b07abd0d64480c8a2412bde4
SHA512

23f1b02aea88eb1f1836f126d85eff071e0c14567703bc26dbcb6f35456dfeb74161b6f45f9541cb1dc7257a96594c22804d3505ec4f891c10578f3afe78c918

Score

10^/10

qakbot cullinan 1639988898 banker evasion stealer trojan

Malware Config

Extracted

Family

qakbot

Version

403.10

Botnet

cullinan

Campaign

1639988898

C2

32.221.229.7:443

140.82.49.12:443

24.152.219.253:995

182.56.99.126:443

76.169.147.192:32103

218.101.110.3:995

89.101.97.139:443

82.152.39.39:443

176.24.150.197:443

96.37.113.36:993

68.186.192.69:443

59.88.168.108:443

75.110.250.187:443

182.191.92.203:995

89.165.88.95:443

103.142.10.177:443

45.9.20.200:2211

24.95.61.62:443

194.36.28.26:443

78.101.82.198:2222

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

1260 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

668 schtasks.exe

pid	process
1260	regsvr32.exe

pid	process
668	schtasks.exe

Modifies data under HKEY_USERS 10 IoCs

Processes:

explorer.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Bbuskao\676c3f3f = 672278237679b1b31fc93487bc1b5bb38ad288979ad654cb9816a2e4391b97bffe4f078e30ff5321c6dbc17fddb46e14cea32152805be595c8a7108bafc1bbe8f1baa587d74cde530315729d4be1e3f188524b683cbc10c6f66dcd5a36d0e5d9a71758bfc91bc7f8349a4347ae5fe4acd351ea5dfdfa4d1d5608af4bed084e0b7c26bcbc7dac781cd93e90b3d4b2b97fa700816ff558651dca3ba1d7439c9e679f84bb792c2dd8e6	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Bbuskao\dd917826 = e42effc0a8ed053217de6b56cd9336fc81304b4867fd040d32feffdab669d8c755951530564070da6efccccd3eb56af3edd8717eb0f9e018e73312ce20aeb6c832901bb782a0f3ff752eb44847c125150671f7a71b931745aedec4dbd113c24c666708c3137a0d39ad55881d	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Bbuskao\2dba8087 = f4d36c8a408601af8a030b8a3c391a3081e032e292ec8fa129d377569483ca401445783e5fb05d8dc2e6c729ad416e	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Bbuskao\52f3ef71 = 0093db94a2cc1c543cafeb00356cc61b8541f78d02083ceaf3821feaea1b2c3e95ab1f2f273b880cc182041553eab49ec43f10	explorer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Bbuskao	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Bbuskao\52f3ef71 = 0093cc94a2cc290128d859197533baebfb9e602df51c4fdec14fcbb1ff82	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Bbuskao\182550c9 = b115266525d3a12160cf1e4a142a0b6fda	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Bbuskao\dfd0585a = 949729d17246e3bf7be24bd77ca12f851abbe95492100137504deee76b9269384b631fc50e9850279ba611fe3c1c01679e33d5dcaaca25	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Bbuskao\652d1f43 = c36ed4ab0d781690624d0f9012f1ccf51eeb7ffa4520db45052a753d2ce0bcaa781eca9bfce84dc95865afd2ef800f4e7ae569f02f81bdb124cd6bcea3f359d0487854b7cb1d4459d81f3f11c1cf2fd2861dcde46dafedddf9e708	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Bbuskao\a09937ac = a35b777db23677dd326f3d515a173bc4cb96e19e8665344ae36c34c526b37a5319987cd3edd4c1042c01c3ea29986f6b24477e533e89b4b72640a19847b027c20e4d25b90ed7b4a79fb235a521a536cf476b49cd1ecf67547a6038062e	explorer.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1504 regsvr32.exe
1260 regsvr32.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1504 regsvr32.exe
1260 regsvr32.exe

pid	process
1504	regsvr32.exe
1260	regsvr32.exe

pid	process
1504	regsvr32.exe
1260	regsvr32.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

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

description	pid	process	target process
PID 1600 wrote to memory of 1504	1600	regsvr32.exe	regsvr32.exe
PID 1600 wrote to memory of 1504	1600	regsvr32.exe	regsvr32.exe
PID 1600 wrote to memory of 1504	1600	regsvr32.exe	regsvr32.exe
PID 1600 wrote to memory of 1504	1600	regsvr32.exe	regsvr32.exe
PID 1600 wrote to memory of 1504	1600	regsvr32.exe	regsvr32.exe
PID 1600 wrote to memory of 1504	1600	regsvr32.exe	regsvr32.exe
PID 1600 wrote to memory of 1504	1600	regsvr32.exe	regsvr32.exe
PID 1504 wrote to memory of 1148	1504	regsvr32.exe	explorer.exe
PID 1504 wrote to memory of 1148	1504	regsvr32.exe	explorer.exe
PID 1504 wrote to memory of 1148	1504	regsvr32.exe	explorer.exe
PID 1504 wrote to memory of 1148	1504	regsvr32.exe	explorer.exe
PID 1504 wrote to memory of 1148	1504	regsvr32.exe	explorer.exe
PID 1504 wrote to memory of 1148	1504	regsvr32.exe	explorer.exe
PID 1148 wrote to memory of 668	1148	explorer.exe	schtasks.exe
PID 1148 wrote to memory of 668	1148	explorer.exe	schtasks.exe
PID 1148 wrote to memory of 668	1148	explorer.exe	schtasks.exe
PID 1148 wrote to memory of 668	1148	explorer.exe	schtasks.exe
PID 1044 wrote to memory of 1440	1044	taskeng.exe	regsvr32.exe
PID 1044 wrote to memory of 1440	1044	taskeng.exe	regsvr32.exe
PID 1044 wrote to memory of 1440	1044	taskeng.exe	regsvr32.exe
PID 1044 wrote to memory of 1440	1044	taskeng.exe	regsvr32.exe
PID 1044 wrote to memory of 1440	1044	taskeng.exe	regsvr32.exe
PID 1440 wrote to memory of 1260	1440	regsvr32.exe	regsvr32.exe
PID 1440 wrote to memory of 1260	1440	regsvr32.exe	regsvr32.exe
PID 1440 wrote to memory of 1260	1440	regsvr32.exe	regsvr32.exe
PID 1440 wrote to memory of 1260	1440	regsvr32.exe	regsvr32.exe
PID 1440 wrote to memory of 1260	1440	regsvr32.exe	regsvr32.exe
PID 1440 wrote to memory of 1260	1440	regsvr32.exe	regsvr32.exe
PID 1440 wrote to memory of 1260	1440	regsvr32.exe	regsvr32.exe
PID 1260 wrote to memory of 1548	1260	regsvr32.exe	explorer.exe
PID 1260 wrote to memory of 1548	1260	regsvr32.exe	explorer.exe
PID 1260 wrote to memory of 1548	1260	regsvr32.exe	explorer.exe
PID 1260 wrote to memory of 1548	1260	regsvr32.exe	explorer.exe
PID 1260 wrote to memory of 1548	1260	regsvr32.exe	explorer.exe
PID 1260 wrote to memory of 1548	1260	regsvr32.exe	explorer.exe
PID 1548 wrote to memory of 1904	1548	explorer.exe	reg.exe
PID 1548 wrote to memory of 1904	1548	explorer.exe	reg.exe
PID 1548 wrote to memory of 1904	1548	explorer.exe	reg.exe
PID 1548 wrote to memory of 1904	1548	explorer.exe	reg.exe
PID 1548 wrote to memory of 1740	1548	explorer.exe	reg.exe
PID 1548 wrote to memory of 1740	1548	explorer.exe	reg.exe
PID 1548 wrote to memory of 1740	1548	explorer.exe	reg.exe
PID 1548 wrote to memory of 1740	1548	explorer.exe	reg.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\tmp\670e990631c0b98ccdd7701c2136f0cb8863a308b07abd0d64480c8a2412bde4.exe.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1600

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\tmp\670e990631c0b98ccdd7701c2136f0cb8863a308b07abd0d64480c8a2412bde4.exe.dll
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1504

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Suspicious use of WriteProcessMemory
PID:1148

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn zdkrftb /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\tmp\670e990631c0b98ccdd7701c2136f0cb8863a308b07abd0d64480c8a2412bde4.exe.dll\"" /SC ONCE /Z /ST 09:34 /ET 09:46
4⤵
- Creates scheduled task(s)
PID:668

C:\Windows\system32\taskeng.exe
taskeng.exe {AF45F83F-0AB0-47A7-BA32-80BB1A62E4F3} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1044

C:\Windows\system32\regsvr32.exe
regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\tmp\670e990631c0b98ccdd7701c2136f0cb8863a308b07abd0d64480c8a2412bde4.exe.dll"
2⤵
- Suspicious use of WriteProcessMemory
PID:1440

C:\Windows\SysWOW64\regsvr32.exe
-s "C:\Users\Admin\AppData\Local\Temp\tmp\670e990631c0b98ccdd7701c2136f0cb8863a308b07abd0d64480c8a2412bde4.exe.dll"
3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1260

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
4⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:1548

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\Aaraiwis" /d "0"
5⤵
PID:1904

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\Ekqczuqek" /d "0"
5⤵
PID:1740

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\tmp\670e990631c0b98ccdd7701c2136f0cb8863a308b07abd0d64480c8a2412bde4.exe.dll
MD5
51083dbdc8f7d9bb9d1a600849c6895a

SHA1
9c63e4caac2f4e94cb013609a02018a1a2315114

SHA256
670e990631c0b98ccdd7701c2136f0cb8863a308b07abd0d64480c8a2412bde4

SHA512
23f1b02aea88eb1f1836f126d85eff071e0c14567703bc26dbcb6f35456dfeb74161b6f45f9541cb1dc7257a96594c22804d3505ec4f891c10578f3afe78c918

Download Submit
\??\PIPE\wkssvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\Users\Admin\AppData\Local\Temp\tmp\670e990631c0b98ccdd7701c2136f0cb8863a308b07abd0d64480c8a2412bde4.exe.dll
MD5
51083dbdc8f7d9bb9d1a600849c6895a

SHA1
9c63e4caac2f4e94cb013609a02018a1a2315114

SHA256
670e990631c0b98ccdd7701c2136f0cb8863a308b07abd0d64480c8a2412bde4

SHA512
23f1b02aea88eb1f1836f126d85eff071e0c14567703bc26dbcb6f35456dfeb74161b6f45f9541cb1dc7257a96594c22804d3505ec4f891c10578f3afe78c918

Download Submit
memory/668-62-0x0000000000000000-mapping.dmp

Download
memory/1148-57-0x00000000000B0000-0x00000000000B2000-memory.dmp

Filesize
8KB

Download
memory/1148-58-0x0000000000000000-mapping.dmp

Download
memory/1148-60-0x0000000074181000-0x0000000074183000-memory.dmp

Filesize
8KB

Download
memory/1148-61-0x0000000000080000-0x00000000000A1000-memory.dmp

Filesize
132KB

Download
memory/1260-66-0x0000000000000000-mapping.dmp

Download
memory/1440-63-0x0000000000000000-mapping.dmp

Download
memory/1504-56-0x0000000075601000-0x0000000075603000-memory.dmp

Filesize
8KB

Download
memory/1504-55-0x0000000000000000-mapping.dmp

Download
memory/1548-70-0x0000000000000000-mapping.dmp

Download
memory/1548-76-0x0000000000080000-0x00000000000A1000-memory.dmp

Filesize
132KB

Download
memory/1600-54-0x000007FEFB771000-0x000007FEFB773000-memory.dmp

Filesize
8KB

Download
memory/1740-75-0x0000000000000000-mapping.dmp

Download
memory/1904-74-0x0000000000000000-mapping.dmp

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads