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

2560 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

1304 schtasks.exe

pid	process
2560	regsvr32.exe

pid	process
1304	schtasks.exe

Modifies data under HKEY_USERS 10 IoCs

Processes:

explorer.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Xpreojsudmakv\2cd8dbad = 4893da4c2b6ee44851eba7b91ac1040a0d1f762ce5e17333460a156bcbae2f228f7c764df614c21d6609477f846a4c7376027f848a1daa951ef40def9981968cb5cc951eaa58eafddfd94bcbbcdbb5e88836a4cf5678f69222ab7723b346c889	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Xpreojsudmakv\9464bcc8 = addfbf98795ad45e9a3556bfbe5989354da856aa4e77e3a08ab020	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Xpreojsudmakv\644f4469 = 63acbc100eb9a5ceb88e899305b75bd78873440795b5a86841a3d67d0734c68f595a767f3c986838f4f11909947ad133703df92895fb37	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Xpreojsudmakv\51d09427 = 7b74ed19daa3bb9e9d686078c281dfe077a0368348549ee063afe79fbf0f2b032ff17af199a0c4b7cdd1cb57e3b6e35a2208205fd87a205ef48c9fdbc6ea21f93d27d0558660b8c663b2d1e3c28b8626ccfd366a8c0d62d5dbf8e7dcbba5b9e51ee711da31	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Xpreojsudmakv\96259cb4 = 8b2550b54817f3797d660c4c841f05c1616d05125095228423d639ef322c70910f6cc4	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Xpreojsudmakv\1b062b9f = e29443a43d2d1dd8d37b1d6bd786257eae7d22f9800894fdadeb9d87c211b60112cd5d	explorer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Xpreojsudmakv	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Xpreojsudmakv\1b062b9f = e29454a43d2d28c32d95d538a788	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Xpreojsudmakv\2e99fbd1 = 446f70dbf8b7e24079def8cf2d4bf738f27e9484d34dde92f909f533f00c98065b3b46577a52f2351b7faa05e819ec6148cf875c922cfb776a9ff9c427e6a8874ecd8fd7d7d53b3c4a20b09cbc6e1b91f4d5b756da391a2e793fabb65a8a0ebc406dc9a72e09b33b4725a5a80fc472bcaf26	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Xpreojsudmakv\e96cf342 = 2de2890578f2fb14d349f597e7f82b82283d3fa94f6496567a11a209484089300142cbf148ebf2c3bbf9af90e6b09676e23ff96a146d1af6b3b5fc543b13cacf5f4e069ba3888d6b4629b3c562f6108a026f96dcc93fb67b833b23b26e8b127ee80c5deaf0570c23cb7b050e	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid	process
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
3064	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe
2560	regsvr32.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

3064 regsvr32.exe
2560 regsvr32.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

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

description	pid	process	target process
PID 2672 wrote to memory of 3064	2672	regsvr32.exe	regsvr32.exe
PID 2672 wrote to memory of 3064	2672	regsvr32.exe	regsvr32.exe
PID 2672 wrote to memory of 3064	2672	regsvr32.exe	regsvr32.exe
PID 3064 wrote to memory of 3916	3064	regsvr32.exe	explorer.exe
PID 3064 wrote to memory of 3916	3064	regsvr32.exe	explorer.exe
PID 3064 wrote to memory of 3916	3064	regsvr32.exe	explorer.exe
PID 3064 wrote to memory of 3916	3064	regsvr32.exe	explorer.exe
PID 3064 wrote to memory of 3916	3064	regsvr32.exe	explorer.exe
PID 3916 wrote to memory of 1304	3916	explorer.exe	schtasks.exe
PID 3916 wrote to memory of 1304	3916	explorer.exe	schtasks.exe
PID 3916 wrote to memory of 1304	3916	explorer.exe	schtasks.exe
PID 1476 wrote to memory of 2560	1476	regsvr32.exe	regsvr32.exe
PID 1476 wrote to memory of 2560	1476	regsvr32.exe	regsvr32.exe
PID 1476 wrote to memory of 2560	1476	regsvr32.exe	regsvr32.exe
PID 2560 wrote to memory of 1992	2560	regsvr32.exe	explorer.exe
PID 2560 wrote to memory of 1992	2560	regsvr32.exe	explorer.exe
PID 2560 wrote to memory of 1992	2560	regsvr32.exe	explorer.exe
PID 2560 wrote to memory of 1992	2560	regsvr32.exe	explorer.exe
PID 2560 wrote to memory of 1992	2560	regsvr32.exe	explorer.exe
PID 1992 wrote to memory of 468	1992	explorer.exe	reg.exe
PID 1992 wrote to memory of 468	1992	explorer.exe	reg.exe
PID 1992 wrote to memory of 1124	1992	explorer.exe	reg.exe
PID 1992 wrote to memory of 1124	1992	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:2672

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:3064

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Suspicious use of WriteProcessMemory
PID:3916

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn mtpxkyk /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154.dll\"" /SC ONCE /Z /ST 19:03 /ET 19:15
4⤵
- Creates scheduled task(s)
PID:1304

\??\c:\windows\system32\regsvr32.exe
regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154.dll"
1⤵
- Suspicious use of WriteProcessMemory
PID:1476

C:\Windows\SysWOW64\regsvr32.exe
-s "C:\Users\Admin\AppData\Local\Temp\6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154.dll"
2⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2560

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:1992

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\Opmqnfifb" /d "0"
4⤵
PID:468

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\Ontdfvuogjzy" /d "0"
4⤵
PID:1124

Network

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

SHA1
15c3c571fbd433d44ae50a8e103be470664dfdab

SHA256
6a4f386ae3926cead27868d0b308ff0109fbf5d03d93b3ec0b21ae742b4e1154

SHA512
670578fe1150c88852abbd1e5f412fe4d58901499eef0c03cd4e00252d8b50ac23fe858952e46791ffd520ad9207d81f1fe2bc4ca92701224b234286ded0d5e0

Download Submit
memory/468-134-0x0000000000000000-mapping.dmp

Download
memory/1124-135-0x0000000000000000-mapping.dmp

Download
memory/1304-122-0x0000000000000000-mapping.dmp

Download
memory/1992-136-0x0000000002CD0000-0x0000000002CD1000-memory.dmp

Filesize
4KB

Download
memory/1992-137-0x0000000002CD0000-0x0000000002CD1000-memory.dmp

Filesize
4KB

Download
memory/1992-133-0x00000000003A0000-0x00000000003C1000-memory.dmp

Filesize
132KB

Download
memory/1992-132-0x0000000000000000-mapping.dmp

Download
memory/2560-131-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/2560-127-0x0000000000000000-mapping.dmp

Download
memory/2560-130-0x00000000034C0000-0x000000000364E000-memory.dmp

Filesize
1.6MB

Download
memory/2560-129-0x0000000003440000-0x00000000034BB000-memory.dmp

Filesize
492KB

Download
memory/3064-115-0x0000000000000000-mapping.dmp

Download
memory/3064-119-0x0000000004340000-0x00000000044CE000-memory.dmp

Filesize
1.6MB

Download
memory/3064-120-0x0000000000B00000-0x0000000000BA2000-memory.dmp

Filesize
648KB

Download
memory/3064-118-0x00000000042C0000-0x000000000433B000-memory.dmp

Filesize
492KB

Download
memory/3064-116-0x0000000000B00000-0x0000000000BA2000-memory.dmp

Filesize
648KB

Download
memory/3916-125-0x00000000006B0000-0x00000000006D1000-memory.dmp

Filesize
132KB

Download
memory/3916-123-0x0000000002F90000-0x0000000002F91000-memory.dmp

Filesize
4KB

Download
memory/3916-124-0x0000000002F90000-0x0000000002F91000-memory.dmp

Filesize
4KB

Download
memory/3916-121-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads