qakbot | 6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154

General

Target

6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154.dll
Size

638KB
MD5

65cbc9cf132a2b5fa688f205e8c84d3b
SHA1

15c3c571fbd433d44ae50a8e103be470664dfdab
SHA256

6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154
SHA512

670578fe1150c88852abbd1e5f412fe4d58901499eef0c03cd4e00252d8b50ac23fe858952e46791ffd520ad9207d81f1fe2bc4ca92701224b234286ded0d5e0

Score

10^/10

qakbot cullinan 1640084934 banker evasion stealer trojan

Malware Config

Extracted

Family

qakbot

Version

403.10

Botnet

cullinan

Campaign

1640084934

C2

95.5.133.68:995

188.159.122.122:443

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

109.12.111.14:443

14.96.72.249:61202

93.48.80.198:995

45.9.20.200:2211

24.95.61.62:443

79.167.192.206:995

37.210.226.125:61202

103.139.242.30:995

70.163.1.219:443

114.79.148.170:443

63.153.187.104:443

103.143.8.71:6881

24.53.49.240:443

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

1568 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

112 schtasks.exe

pid	process
1568	regsvr32.exe

pid	process
112	schtasks.exe

Modifies data under HKEY_USERS 10 IoCs

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Cryayiujaz	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Cryayiujaz\65ff4c16 = 688e226b01f1c8ce4237428c83ef014a5cf67710b7412ad4ed548248f37c417c1c86275fa0c4bb5c88a8fc3481792a39a600bff67de72c5e367997c515ba73121599b1caa4fba0d6b0fb59c25428eea091bde740be4168eee13ce6697bb87b1404aca50c91b21a4a7d9e56c9874762a11464a06221c453f976581bf4cf97e3f9bc4407e0434dcfc41595be0f8fb998c59177360a531ff297bf4f6e01e83d4f	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Cryayiujaz\2f29f3ae = 0b1d4e0a2e9f93d063b53c9bcde28bf35de4a9ba36485c375a0947	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Cryayiujaz\a20a4485 = cf82ace7e9a694bcbc67eefc140565e2c191425f582d1fd667cfeb3b339787223d71889dcc9397e168a854b233915b41a89338d4eda3e2b9fafed461bf0869c88a74d2600f283c5ffa8079	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Cryayiujaz\1ab623e0 = a11dfb03e5bd4f4c518dbf516aa684372baa6db3cfc21f7a1d098032dba5f5fe69de5311ee0da518fc71b89cd3003f75a4	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Cryayiujaz\dd432b73 = 983989d5065f9bea6747203dfb0def3763d445b049ba71f9615a3802d1ae8cf319772be4d7ebf4b626725b1329c0c83d79f703a9ac887641147012cfc73daddf5f36aa6c7c5e966f80837faf2705aff24dd26c3f	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Cryayiujaz\50609c58 = 4bbf7310255d0c7b11313fc5f998473b2d210e4aefca0e42db0e7d9faa2eb43db3fa5926c08268860fe253d454efafe5866b45223e62602ef8d717fb547e2f5e36ddb30607b7f121f6d771052ee065d0d35c1d7364d006d738cccc7b95	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Cryayiujaz\50609c58 = 4bbf6410255d3914cdbb397e27171bf2e01c15ac0e36a471ddbb13da6fd53f0bf063aefa21de75b1eca43720d679c8a4999e3a1739dbe8c171e0bd5dac8518cab5775860e2f8acab	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Cryayiujaz\67be6c6a = 9381f1c6d8ce7aecc9b7bc171bfd03869dc427fc8e399e32637aaca584e0f4d816c62b170fc311	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Cryayiujaz\df020b0f = 2b95db6af0a740cc14272fd5898ce5bc64f8cce955dfcd5ec0ef4e6baf553b7ef69ab2568059b8ade3d3a17a621e33af8618590e7ceb9795cd86092795cf4f0706541a	explorer.exe

Suspicious behavior: EnumeratesProcesses 42 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid	process
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1276	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe
1568	regsvr32.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1276 regsvr32.exe
1568 regsvr32.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

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

description	pid	process	target process
PID 972 wrote to memory of 1276	972	regsvr32.exe	regsvr32.exe
PID 972 wrote to memory of 1276	972	regsvr32.exe	regsvr32.exe
PID 972 wrote to memory of 1276	972	regsvr32.exe	regsvr32.exe
PID 972 wrote to memory of 1276	972	regsvr32.exe	regsvr32.exe
PID 972 wrote to memory of 1276	972	regsvr32.exe	regsvr32.exe
PID 972 wrote to memory of 1276	972	regsvr32.exe	regsvr32.exe
PID 972 wrote to memory of 1276	972	regsvr32.exe	regsvr32.exe
PID 1276 wrote to memory of 720	1276	regsvr32.exe	explorer.exe
PID 1276 wrote to memory of 720	1276	regsvr32.exe	explorer.exe
PID 1276 wrote to memory of 720	1276	regsvr32.exe	explorer.exe
PID 1276 wrote to memory of 720	1276	regsvr32.exe	explorer.exe
PID 1276 wrote to memory of 720	1276	regsvr32.exe	explorer.exe
PID 1276 wrote to memory of 720	1276	regsvr32.exe	explorer.exe
PID 720 wrote to memory of 112	720	explorer.exe	schtasks.exe
PID 720 wrote to memory of 112	720	explorer.exe	schtasks.exe
PID 720 wrote to memory of 112	720	explorer.exe	schtasks.exe
PID 720 wrote to memory of 112	720	explorer.exe	schtasks.exe
PID 1512 wrote to memory of 1328	1512	taskeng.exe	regsvr32.exe
PID 1512 wrote to memory of 1328	1512	taskeng.exe	regsvr32.exe
PID 1512 wrote to memory of 1328	1512	taskeng.exe	regsvr32.exe
PID 1512 wrote to memory of 1328	1512	taskeng.exe	regsvr32.exe
PID 1512 wrote to memory of 1328	1512	taskeng.exe	regsvr32.exe
PID 1328 wrote to memory of 1568	1328	regsvr32.exe	regsvr32.exe
PID 1328 wrote to memory of 1568	1328	regsvr32.exe	regsvr32.exe
PID 1328 wrote to memory of 1568	1328	regsvr32.exe	regsvr32.exe
PID 1328 wrote to memory of 1568	1328	regsvr32.exe	regsvr32.exe
PID 1328 wrote to memory of 1568	1328	regsvr32.exe	regsvr32.exe
PID 1328 wrote to memory of 1568	1328	regsvr32.exe	regsvr32.exe
PID 1328 wrote to memory of 1568	1328	regsvr32.exe	regsvr32.exe
PID 1568 wrote to memory of 1740	1568	regsvr32.exe	explorer.exe
PID 1568 wrote to memory of 1740	1568	regsvr32.exe	explorer.exe
PID 1568 wrote to memory of 1740	1568	regsvr32.exe	explorer.exe
PID 1568 wrote to memory of 1740	1568	regsvr32.exe	explorer.exe
PID 1568 wrote to memory of 1740	1568	regsvr32.exe	explorer.exe
PID 1568 wrote to memory of 1740	1568	regsvr32.exe	explorer.exe
PID 1740 wrote to memory of 108	1740	explorer.exe	reg.exe
PID 1740 wrote to memory of 108	1740	explorer.exe	reg.exe
PID 1740 wrote to memory of 108	1740	explorer.exe	reg.exe
PID 1740 wrote to memory of 108	1740	explorer.exe	reg.exe
PID 1740 wrote to memory of 792	1740	explorer.exe	reg.exe
PID 1740 wrote to memory of 792	1740	explorer.exe	reg.exe
PID 1740 wrote to memory of 792	1740	explorer.exe	reg.exe
PID 1740 wrote to memory of 792	1740	explorer.exe	reg.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:972

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154.dll
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1276

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Suspicious use of WriteProcessMemory
PID:720

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn ckpbxuirx /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154.dll\"" /SC ONCE /Z /ST 14:01 /ET 14:13
4⤵
- Creates scheduled task(s)
PID:112

C:\Windows\system32\taskeng.exe
taskeng.exe {A9026602-2E1D-408F-8ECF-95719E97C52A} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1512

C:\Windows\system32\regsvr32.exe
regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154.dll"
2⤵
- Suspicious use of WriteProcessMemory
PID:1328

C:\Windows\SysWOW64\regsvr32.exe
-s "C:\Users\Admin\AppData\Local\Temp\6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154.dll"
3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1568

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
4⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:1740

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\Fygyuymqc" /d "0"
5⤵
PID:108

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\Ptnxziqrqwde" /d "0"
5⤵
PID:792

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\6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154.dll
MD5
65cbc9cf132a2b5fa688f205e8c84d3b

SHA1
15c3c571fbd433d44ae50a8e103be470664dfdab

SHA256
6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154

SHA512
670578fe1150c88852abbd1e5f412fe4d58901499eef0c03cd4e00252d8b50ac23fe858952e46791ffd520ad9207d81f1fe2bc4ca92701224b234286ded0d5e0

Download Submit
\??\PIPE\wkssvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\Users\Admin\AppData\Local\Temp\6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154.dll
MD5
65cbc9cf132a2b5fa688f205e8c84d3b

SHA1
15c3c571fbd433d44ae50a8e103be470664dfdab

SHA256
6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154

SHA512
670578fe1150c88852abbd1e5f412fe4d58901499eef0c03cd4e00252d8b50ac23fe858952e46791ffd520ad9207d81f1fe2bc4ca92701224b234286ded0d5e0

Download Submit
memory/108-83-0x0000000000000000-mapping.dmp

Download
memory/112-67-0x0000000000000000-mapping.dmp

Download
memory/720-68-0x0000000000080000-0x00000000000A1000-memory.dmp

Filesize
132KB

Download
memory/720-63-0x00000000000B0000-0x00000000000B2000-memory.dmp

Filesize
8KB

Download
memory/720-64-0x0000000000000000-mapping.dmp

Download
memory/720-66-0x0000000073FC1000-0x0000000073FC3000-memory.dmp

Filesize
8KB

Download
memory/792-87-0x0000000000000000-mapping.dmp

Download
memory/972-55-0x000007FEFB5D1000-0x000007FEFB5D3000-memory.dmp

Filesize
8KB

Download
memory/1276-62-0x00000000004F0000-0x0000000000592000-memory.dmp

Filesize
648KB

Download
memory/1276-61-0x00000000020B0000-0x0000000002230000-memory.dmp

Filesize
1.5MB

Download
memory/1276-60-0x0000000002030000-0x00000000020AB000-memory.dmp

Filesize
492KB

Download
memory/1276-58-0x00000000004F0000-0x0000000000592000-memory.dmp

Filesize
648KB

Download
memory/1276-57-0x00000000756C1000-0x00000000756C3000-memory.dmp

Filesize
8KB

Download
memory/1276-56-0x0000000000000000-mapping.dmp

Download
memory/1328-69-0x0000000000000000-mapping.dmp

Download
memory/1568-77-0x0000000000390000-0x000000000040B000-memory.dmp

Filesize
492KB

Download
memory/1568-75-0x0000000000A20000-0x0000000000AC2000-memory.dmp

Filesize
648KB

Download
memory/1568-84-0x0000000000DF0000-0x0000000000F70000-memory.dmp

Filesize
1.5MB

Download
memory/1568-85-0x0000000000A20000-0x0000000000AC2000-memory.dmp

Filesize
648KB

Download
memory/1568-72-0x0000000000000000-mapping.dmp

Download
memory/1740-79-0x0000000000000000-mapping.dmp

Download
memory/1740-86-0x0000000000080000-0x00000000000A1000-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