qakbot | bd3511db489e06a09cbe3f91ef7ef8f5ada5e39b0ade781f744896dd46bef213

General

Target

bd3511db489e06a09cbe3f91ef7ef8f5ada5e39b0ade781f744896dd46bef213.dll
Size

630KB
MD5

40c4c9f214b47e21fd9632c4f1d35900
SHA1

7c8ac3aa2e4312a7d6323f46cbe6f619fc61124d
SHA256

bd3511db489e06a09cbe3f91ef7ef8f5ada5e39b0ade781f744896dd46bef213
SHA512

cb68a118692cd6f8b9875b8d83c600b705438d729550e99c6c3791b017e3e19b08cc66bedcaaa8db58b6af062ef7a7a05da9427906d24d9db685329c5ff369fe

Score

10^/10

qakbot cullinan 1640168876 banker evasion stealer trojan

Malware Config

Extracted

Family

qakbot

Version

403.10

Botnet

cullinan

Campaign

1640168876

C2

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

76.169.147.192:32103

136.143.11.232:443

63.153.187.104:443

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

1560 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

1424 schtasks.exe

pid	process
1560	regsvr32.exe

pid	process
1424	schtasks.exe

Modifies data under HKEY_USERS 10 IoCs

Processes:

explorer.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Iskeiuuldoujqa\550a5be7 = d3bcb178204006e2e39002bac19f3de314db998d33f952446f1ef34e466cb577168e29f3a0ddc33c7db0a54eb02f6dfc915011160ec32d4aa4790b44be599b78e0d02be8f1dc2e6ffca62fe89258167f4df45f58fd	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Iskeiuuldoujqa\2802146d = b0b9cc74f5892a772fc654a46e25223e484448	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Iskeiuuldoujqa\574b7b9b = 3a05cfdeddf3691281aeb8085c8b318d0014149fab9e76980f7e50a48ee8	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Iskeiuuldoujqa\a521a346 = 3b890b605a3c5342b5d9c3b9a849c80a643faf409f86b5258e22363e1c7f324c808ead35641c8b45cb4a811aef5bbaadf1e96a37b3cd9e2551fe077463fd790714192d951dcb36105b8ef1e6	explorer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Iskeiuuldoujqa	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Iskeiuuldoujqa\eff71cfe = 8852614d408c758a05208bd97ac93c2897bf20d84b3210ca538460ab80a1fe9d01ab3a7fde79ca18a3032a9c120075aefeafcc368964c4eaedd188d7860bfd41bf47f0bb5a979ce941133886e4ba2d63e5a96e7c306d228fdb8905261fb20334ed10cc3fde65c3fd79c7d48090ac8f	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Iskeiuuldoujqa\90be7308 = 8c545da0266a130669d6459570336aa897bf5087653cf2ae2700b42cc8230805c35aec0c8d2f6edc1ea1bbe6ba4dc677cdc9c2c731882cabf1ab0cefc5224529ccf21f02726767ec3ae52788f0c040166ed43bf70b63b4	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Iskeiuuldoujqa\da68ccb0 = 02ae3cf8cdf4620ccf11e5aa9a211af8d272ba0ec0ca4116b9698ac5797cca11ad9a9ffe9053bf958655c5fa60b712d0e2fdccf039d5e0813372634951cc9d505a3a4d4d49c060	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Iskeiuuldoujqa\da68ccb0 = 02ae2bf8cdf4573e5d0428c4de8f6694346151fed71094d6250e2f8f22d562f1260d324b7f08629212d5b42ad365afc0c0cd	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Iskeiuuldoujqa\edb63c82 = 920768198aed04928dfaa346aae4e9486ae632d1a0172086ee38e650e801ea208b88cfc240b6343d8830667673c459695b5c5e716f09be71ec4f1a6e001bd6082105d3a5a8c1136bfdfe8a6e55c771d639c6fb1109b94c17c617355bba	explorer.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exeregsvr32.exe

pid process

1536 rundll32.exe
1560 regsvr32.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

rundll32.exeregsvr32.exe

pid process

1536 rundll32.exe
1560 regsvr32.exe

pid	process
1536	rundll32.exe
1560	regsvr32.exe

pid	process
1536	rundll32.exe
1560	regsvr32.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

rundll32.exerundll32.exeexplorer.exetaskeng.exeregsvr32.exeregsvr32.exeexplorer.exe

description	pid	process	target process
PID 1524 wrote to memory of 1536	1524	rundll32.exe	rundll32.exe
PID 1524 wrote to memory of 1536	1524	rundll32.exe	rundll32.exe
PID 1524 wrote to memory of 1536	1524	rundll32.exe	rundll32.exe
PID 1524 wrote to memory of 1536	1524	rundll32.exe	rundll32.exe
PID 1524 wrote to memory of 1536	1524	rundll32.exe	rundll32.exe
PID 1524 wrote to memory of 1536	1524	rundll32.exe	rundll32.exe
PID 1524 wrote to memory of 1536	1524	rundll32.exe	rundll32.exe
PID 1536 wrote to memory of 584	1536	rundll32.exe	explorer.exe
PID 1536 wrote to memory of 584	1536	rundll32.exe	explorer.exe
PID 1536 wrote to memory of 584	1536	rundll32.exe	explorer.exe
PID 1536 wrote to memory of 584	1536	rundll32.exe	explorer.exe
PID 1536 wrote to memory of 584	1536	rundll32.exe	explorer.exe
PID 1536 wrote to memory of 584	1536	rundll32.exe	explorer.exe
PID 584 wrote to memory of 1424	584	explorer.exe	schtasks.exe
PID 584 wrote to memory of 1424	584	explorer.exe	schtasks.exe
PID 584 wrote to memory of 1424	584	explorer.exe	schtasks.exe
PID 584 wrote to memory of 1424	584	explorer.exe	schtasks.exe
PID 1752 wrote to memory of 2040	1752	taskeng.exe	regsvr32.exe
PID 1752 wrote to memory of 2040	1752	taskeng.exe	regsvr32.exe
PID 1752 wrote to memory of 2040	1752	taskeng.exe	regsvr32.exe
PID 1752 wrote to memory of 2040	1752	taskeng.exe	regsvr32.exe
PID 1752 wrote to memory of 2040	1752	taskeng.exe	regsvr32.exe
PID 2040 wrote to memory of 1560	2040	regsvr32.exe	regsvr32.exe
PID 2040 wrote to memory of 1560	2040	regsvr32.exe	regsvr32.exe
PID 2040 wrote to memory of 1560	2040	regsvr32.exe	regsvr32.exe
PID 2040 wrote to memory of 1560	2040	regsvr32.exe	regsvr32.exe
PID 2040 wrote to memory of 1560	2040	regsvr32.exe	regsvr32.exe
PID 2040 wrote to memory of 1560	2040	regsvr32.exe	regsvr32.exe
PID 2040 wrote to memory of 1560	2040	regsvr32.exe	regsvr32.exe
PID 1560 wrote to memory of 1864	1560	regsvr32.exe	explorer.exe
PID 1560 wrote to memory of 1864	1560	regsvr32.exe	explorer.exe
PID 1560 wrote to memory of 1864	1560	regsvr32.exe	explorer.exe
PID 1560 wrote to memory of 1864	1560	regsvr32.exe	explorer.exe
PID 1560 wrote to memory of 1864	1560	regsvr32.exe	explorer.exe
PID 1560 wrote to memory of 1864	1560	regsvr32.exe	explorer.exe
PID 1864 wrote to memory of 2000	1864	explorer.exe	reg.exe
PID 1864 wrote to memory of 2000	1864	explorer.exe	reg.exe
PID 1864 wrote to memory of 2000	1864	explorer.exe	reg.exe
PID 1864 wrote to memory of 2000	1864	explorer.exe	reg.exe
PID 1864 wrote to memory of 1880	1864	explorer.exe	reg.exe
PID 1864 wrote to memory of 1880	1864	explorer.exe	reg.exe
PID 1864 wrote to memory of 1880	1864	explorer.exe	reg.exe
PID 1864 wrote to memory of 1880	1864	explorer.exe	reg.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bd3511db489e06a09cbe3f91ef7ef8f5ada5e39b0ade781f744896dd46bef213.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1524

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bd3511db489e06a09cbe3f91ef7ef8f5ada5e39b0ade781f744896dd46bef213.dll,#1
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1536

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Suspicious use of WriteProcessMemory
PID:584

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn spbfmtjtfj /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\bd3511db489e06a09cbe3f91ef7ef8f5ada5e39b0ade781f744896dd46bef213.dll\"" /SC ONCE /Z /ST 21:13 /ET 21:25
4⤵
- Creates scheduled task(s)
PID:1424

C:\Windows\system32\taskeng.exe
taskeng.exe {0CA49FA1-7A02-4059-AEC4-BEC25E9D2B55} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1752

C:\Windows\system32\regsvr32.exe
regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\bd3511db489e06a09cbe3f91ef7ef8f5ada5e39b0ade781f744896dd46bef213.dll"
2⤵
- Suspicious use of WriteProcessMemory
PID:2040

C:\Windows\SysWOW64\regsvr32.exe
-s "C:\Users\Admin\AppData\Local\Temp\bd3511db489e06a09cbe3f91ef7ef8f5ada5e39b0ade781f744896dd46bef213.dll"
3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1560

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
4⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:1864

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\Rwuroe" /d "0"
5⤵
PID:2000

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\Fqdyu" /d "0"
5⤵
PID:1880

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\bd3511db489e06a09cbe3f91ef7ef8f5ada5e39b0ade781f744896dd46bef213.dll
MD5
40c4c9f214b47e21fd9632c4f1d35900

SHA1
7c8ac3aa2e4312a7d6323f46cbe6f619fc61124d

SHA256
bd3511db489e06a09cbe3f91ef7ef8f5ada5e39b0ade781f744896dd46bef213

SHA512
cb68a118692cd6f8b9875b8d83c600b705438d729550e99c6c3791b017e3e19b08cc66bedcaaa8db58b6af062ef7a7a05da9427906d24d9db685329c5ff369fe

Download Submit
\??\PIPE\wkssvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\Users\Admin\AppData\Local\Temp\bd3511db489e06a09cbe3f91ef7ef8f5ada5e39b0ade781f744896dd46bef213.dll
MD5
40c4c9f214b47e21fd9632c4f1d35900

SHA1
7c8ac3aa2e4312a7d6323f46cbe6f619fc61124d

SHA256
bd3511db489e06a09cbe3f91ef7ef8f5ada5e39b0ade781f744896dd46bef213

SHA512
cb68a118692cd6f8b9875b8d83c600b705438d729550e99c6c3791b017e3e19b08cc66bedcaaa8db58b6af062ef7a7a05da9427906d24d9db685329c5ff369fe

Download Submit
memory/584-60-0x00000000000B0000-0x00000000000B2000-memory.dmp

Filesize
8KB

Download
memory/584-65-0x0000000000080000-0x00000000000A1000-memory.dmp

Filesize
132KB

Download
memory/584-62-0x0000000075021000-0x0000000075023000-memory.dmp

Filesize
8KB

Download
memory/1536-58-0x0000000000200000-0x0000000000221000-memory.dmp

Filesize
132KB

Download
memory/1536-54-0x0000000075D51000-0x0000000075D53000-memory.dmp

Filesize
8KB

Download
memory/1536-63-0x0000000000360000-0x00000000003A3000-memory.dmp

Filesize
268KB

Download
memory/1536-64-0x0000000000200000-0x0000000000221000-memory.dmp

Filesize
132KB

Download
memory/1536-59-0x0000000000200000-0x0000000000221000-memory.dmp

Filesize
132KB

Download
memory/1536-55-0x0000000000270000-0x0000000000310000-memory.dmp

Filesize
640KB

Download
memory/1536-56-0x0000000000200000-0x0000000000221000-memory.dmp

Filesize
132KB

Download
memory/1536-57-0x0000000000200000-0x0000000000221000-memory.dmp

Filesize
132KB

Download
memory/1560-75-0x00000000007F0000-0x0000000000833000-memory.dmp

Filesize
268KB

Download
memory/1560-72-0x00000000002C0000-0x00000000002E1000-memory.dmp

Filesize
132KB

Download
memory/1560-71-0x00000000002C0000-0x00000000002E1000-memory.dmp

Filesize
132KB

Download
memory/1560-74-0x00000000002C0000-0x00000000002E1000-memory.dmp

Filesize
132KB

Download
memory/1560-73-0x00000000002C0000-0x00000000002E1000-memory.dmp

Filesize
132KB

Download
memory/1560-70-0x0000000000A20000-0x0000000000AC0000-memory.dmp

Filesize
640KB

Download
memory/1560-76-0x00000000002C0000-0x00000000002E1000-memory.dmp

Filesize
132KB

Download
memory/1864-81-0x00000000000C0000-0x00000000000E1000-memory.dmp

Filesize
132KB

Download
memory/2040-66-0x000007FEFC501000-0x000007FEFC503000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads