qakbot | 27f4da05b6a48dcaae5d957a2db822140dfc900066083694bae12925d5b725c8

General

Target

stage2.bin.dll
Size

638KB
MD5

47200ffbb26a2c84b32e7d4e4d719e8c
SHA1

aba1a3188755d27187bff4e6d674597a7b4ea63a
SHA256

27f4da05b6a48dcaae5d957a2db822140dfc900066083694bae12925d5b725c8
SHA512

ea3619ad0f590b86a0751e89013f0cf0293f42871f7246e84867435323b3d092875bff28f170cdfdbf5109af1c3ac53000ad44c51d44e2bd735ff2a4cd4bec5d

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

1244 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

648 schtasks.exe

pid	process
1244	regsvr32.exe

pid	process
648	schtasks.exe

Modifies data under HKEY_USERS 10 IoCs

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oqsyiid	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oqsyiid\4d865f2c = 31686f50d2e46fb2ba2cd9adb4cb8cb7a35cadf5bc8a5603259fca30d093f289cf565955872908156be7a59b1c71bb2e59196d3c64af73c875571886918d5579248db7265fc66f9671a6400a70f5701e5c858e347550c3bcf43dea634b2044a39e	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oqsyiid\4d865f2c = 31687850d2e45a131628f7fc9b2d540f73b27433b394e5b0a9d2b8fcb0965ac15c76147c773064f845ef5b88cc56b0f582ffab81fe74c9d7343a8089387f1d0802bb3514fa414efc38e54e69c158e28f635fb9cdd212d953616d2849dd623ed9524a89681914109a4d46736997948e5f2afc123c076b	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oqsyiid\78198f62 = b55575caf34d8be80152cc388a1226666d3ca0116491f5a493aa2de3222e6ce19e6aa304eaf40bf413a58b69d9d04da5f16c044d7ad341d88333f87edf3ac1f5751477bc718fa9146d8b2b482e60d2153ad169c8553e77450cb958e803fd13f8b4cc7c6ef89964149239e9ada1f4050cf796459e3c433b508afe4b35b7cc80afbcf2f673f373df7964abf8b23b7868c4f393c5419426d9ab0e3dd0565fbeee8d16eba756785fccb10bb25a0b9cca3fc1c00a9d69ca8e467f40d127feb0ce8bf5ae888b12a1a6	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oqsyiid\7a58af1e = c989c9b8ad0bb893372f4b44b67ab6342623e3238a730e5b8704832cca16ce94a1ea0cc1df627008	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oqsyiid\c2e4c87b = 49f6d774506c4eba9b12fedf78145d92277fcd44e324290e26c2fc9746d6318003537da2b1ce523abe48327b5b896ff7892cc3e3bc2ca8f0b863f99a96fdfa9a22d0db7ae0a92c80466eb667e53c1ea043853610ed938dd7638fff8df550b32c84cc17b5c5c4c3b1c256fa34fdda97c79e	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oqsyiid\bfec87f1 = 893e2f205aad2b3b1baa78711c09c98d8df739e06d2ff1e64ab31a412a1e1947d84e7aae4484aab289880aff5313ce8bd0	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oqsyiid\750e094 = 4d82adbc45fad02c1d345bcd030e903475c904b26d9a30cd68828606e17f691593f9c7587ad3f6dec68a0c933f65c37868148f3123709384ce07f610f2d53c4fa2c152039cef9aaacbcb6939d3f4841df6a23bf4bd1b7a6962437b9278b283e9dfef60c19cbe06885f53a9ab	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oqsyiid\c0a5e807 = 78c52f3d1f6ae558a7f4ded2ddd90369b51df86eca62fc5b166ca712	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oqsyiid\32cf30da = 9efdc0ecd3637bdbd6c3f55f53924fdfc4	explorer.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exeregsvr32.exe

pid process

1360 rundll32.exe
1244 regsvr32.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

rundll32.exeregsvr32.exe

pid process

1360 rundll32.exe
1244 regsvr32.exe

pid	process
1360	rundll32.exe
1244	regsvr32.exe

pid	process
1360	rundll32.exe
1244	regsvr32.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

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

description	pid	process	target process
PID 1732 wrote to memory of 1360	1732	rundll32.exe	rundll32.exe
PID 1732 wrote to memory of 1360	1732	rundll32.exe	rundll32.exe
PID 1732 wrote to memory of 1360	1732	rundll32.exe	rundll32.exe
PID 1732 wrote to memory of 1360	1732	rundll32.exe	rundll32.exe
PID 1732 wrote to memory of 1360	1732	rundll32.exe	rundll32.exe
PID 1732 wrote to memory of 1360	1732	rundll32.exe	rundll32.exe
PID 1732 wrote to memory of 1360	1732	rundll32.exe	rundll32.exe
PID 1360 wrote to memory of 268	1360	rundll32.exe	explorer.exe
PID 1360 wrote to memory of 268	1360	rundll32.exe	explorer.exe
PID 1360 wrote to memory of 268	1360	rundll32.exe	explorer.exe
PID 1360 wrote to memory of 268	1360	rundll32.exe	explorer.exe
PID 1360 wrote to memory of 268	1360	rundll32.exe	explorer.exe
PID 1360 wrote to memory of 268	1360	rundll32.exe	explorer.exe
PID 268 wrote to memory of 648	268	explorer.exe	schtasks.exe
PID 268 wrote to memory of 648	268	explorer.exe	schtasks.exe
PID 268 wrote to memory of 648	268	explorer.exe	schtasks.exe
PID 268 wrote to memory of 648	268	explorer.exe	schtasks.exe
PID 1724 wrote to memory of 1572	1724	taskeng.exe	regsvr32.exe
PID 1724 wrote to memory of 1572	1724	taskeng.exe	regsvr32.exe
PID 1724 wrote to memory of 1572	1724	taskeng.exe	regsvr32.exe
PID 1724 wrote to memory of 1572	1724	taskeng.exe	regsvr32.exe
PID 1724 wrote to memory of 1572	1724	taskeng.exe	regsvr32.exe
PID 1572 wrote to memory of 1244	1572	regsvr32.exe	regsvr32.exe
PID 1572 wrote to memory of 1244	1572	regsvr32.exe	regsvr32.exe
PID 1572 wrote to memory of 1244	1572	regsvr32.exe	regsvr32.exe
PID 1572 wrote to memory of 1244	1572	regsvr32.exe	regsvr32.exe
PID 1572 wrote to memory of 1244	1572	regsvr32.exe	regsvr32.exe
PID 1572 wrote to memory of 1244	1572	regsvr32.exe	regsvr32.exe
PID 1572 wrote to memory of 1244	1572	regsvr32.exe	regsvr32.exe
PID 1244 wrote to memory of 1740	1244	regsvr32.exe	explorer.exe
PID 1244 wrote to memory of 1740	1244	regsvr32.exe	explorer.exe
PID 1244 wrote to memory of 1740	1244	regsvr32.exe	explorer.exe
PID 1244 wrote to memory of 1740	1244	regsvr32.exe	explorer.exe
PID 1244 wrote to memory of 1740	1244	regsvr32.exe	explorer.exe
PID 1244 wrote to memory of 1740	1244	regsvr32.exe	explorer.exe
PID 1740 wrote to memory of 888	1740	explorer.exe	reg.exe
PID 1740 wrote to memory of 888	1740	explorer.exe	reg.exe
PID 1740 wrote to memory of 888	1740	explorer.exe	reg.exe
PID 1740 wrote to memory of 888	1740	explorer.exe	reg.exe
PID 1740 wrote to memory of 1944	1740	explorer.exe	reg.exe
PID 1740 wrote to memory of 1944	1740	explorer.exe	reg.exe
PID 1740 wrote to memory of 1944	1740	explorer.exe	reg.exe
PID 1740 wrote to memory of 1944	1740	explorer.exe	reg.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\stage2.bin.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1732

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\stage2.bin.dll,#1
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1360

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Suspicious use of WriteProcessMemory
PID:268

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn fncgerv /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\stage2.bin.dll\"" /SC ONCE /Z /ST 15:28 /ET 15:40
4⤵
- Creates scheduled task(s)
PID:648

C:\Windows\system32\taskeng.exe
taskeng.exe {98BB9A8E-585A-4578-BF36-7D002FD7FB45} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1724

C:\Windows\system32\regsvr32.exe
regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\stage2.bin.dll"
2⤵
- Suspicious use of WriteProcessMemory
PID:1572

C:\Windows\SysWOW64\regsvr32.exe
-s "C:\Users\Admin\AppData\Local\Temp\stage2.bin.dll"
3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1244

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\Bhoeeijoad" /d "0"
5⤵
PID:888

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\Oevfcqcdqw" /d "0"
5⤵
PID:1944

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\stage2.bin.dll
MD5
47200ffbb26a2c84b32e7d4e4d719e8c

SHA1
aba1a3188755d27187bff4e6d674597a7b4ea63a

SHA256
27f4da05b6a48dcaae5d957a2db822140dfc900066083694bae12925d5b725c8

SHA512
ea3619ad0f590b86a0751e89013f0cf0293f42871f7246e84867435323b3d092875bff28f170cdfdbf5109af1c3ac53000ad44c51d44e2bd735ff2a4cd4bec5d

Download Submit
\??\PIPE\wkssvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\Users\Admin\AppData\Local\Temp\stage2.bin.dll
MD5
47200ffbb26a2c84b32e7d4e4d719e8c

SHA1
aba1a3188755d27187bff4e6d674597a7b4ea63a

SHA256
27f4da05b6a48dcaae5d957a2db822140dfc900066083694bae12925d5b725c8

SHA512
ea3619ad0f590b86a0751e89013f0cf0293f42871f7246e84867435323b3d092875bff28f170cdfdbf5109af1c3ac53000ad44c51d44e2bd735ff2a4cd4bec5d

Download Submit
memory/268-61-0x00000000000B0000-0x00000000000B2000-memory.dmp

Filesize
8KB

Download
memory/268-66-0x0000000000080000-0x00000000000A1000-memory.dmp

Filesize
132KB

Download
memory/268-65-0x00000000744D1000-0x00000000744D3000-memory.dmp

Filesize
8KB

Download
memory/1244-73-0x0000000000590000-0x00000000005B1000-memory.dmp

Filesize
132KB

Download
memory/1244-71-0x00000000002E0000-0x0000000000380000-memory.dmp

Filesize
640KB

Download
memory/1244-76-0x0000000000590000-0x00000000005B1000-memory.dmp

Filesize
132KB

Download
memory/1244-74-0x0000000000590000-0x00000000005B1000-memory.dmp

Filesize
132KB

Download
memory/1244-75-0x0000000000590000-0x00000000005B1000-memory.dmp

Filesize
132KB

Download
memory/1244-72-0x0000000000590000-0x00000000005B1000-memory.dmp

Filesize
132KB

Download
memory/1360-60-0x00000000007D0000-0x00000000007F1000-memory.dmp

Filesize
132KB

Download
memory/1360-58-0x00000000007D0000-0x00000000007F1000-memory.dmp

Filesize
132KB

Download
memory/1360-57-0x00000000007D0000-0x00000000007F1000-memory.dmp

Filesize
132KB

Download
memory/1360-55-0x0000000074F11000-0x0000000074F13000-memory.dmp

Filesize
8KB

Download
memory/1360-62-0x0000000001DB0000-0x0000000001DF3000-memory.dmp

Filesize
268KB

Download
memory/1360-59-0x00000000007D0000-0x00000000007F1000-memory.dmp

Filesize
132KB

Download
memory/1360-63-0x00000000007D0000-0x00000000007F1000-memory.dmp

Filesize
132KB

Download
memory/1360-56-0x00000000006E0000-0x0000000000780000-memory.dmp

Filesize
640KB

Download
memory/1572-67-0x000007FEFB801000-0x000007FEFB803000-memory.dmp

Filesize
8KB

Download
memory/1740-81-0x0000000000080000-0x00000000000A1000-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