qakbot | 3460c75467173d8770325ef0cae52a081088c40c3009b49c30ce156acdcfeb31

General

Target

second_stage2.bin.dll
Size

664KB
MD5

13e592747dd14009080fb054cb80bad7
SHA1

98422f1cd903685c3dd91755b9894e918e53318b
SHA256

3460c75467173d8770325ef0cae52a081088c40c3009b49c30ce156acdcfeb31
SHA512

7248e03c329909c9f8c4ae67b5f6c85795025c746538ec9f965b48ea6806e6ed5f8affe3ff8354d02cafe9b6c791558c9c9b9da30cf9c564cc5fb660b89c5a45

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

1176 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

1644 schtasks.exe

pid	process
1176	regsvr32.exe

pid	process
1644	schtasks.exe

Modifies data under HKEY_USERS 10 IoCs

Processes:

explorer.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Ytkyezjdqgev\765904ea = 4408eae99513e8537ed9ad36c7da6b5be8e054a25abb40908df27b4b48540f0935b8114b	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Ytkyezjdqgev\8433dc37 = b5b657cf512a7ded88fc0ff8619fc511a965a71d9d3034606a6341edcd2a38519c4d1c659bd551f0682011091bcdde26bc2ece5f0484202078b17463d13c4578c33f132d40	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Ytkyezjdqgev\9106b1c = 1a9cedd40494396f42ec22f99636dd0f0698554409f83b4cf5666c187a	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Ytkyezjdqgev\765904ea = 4408fde99513dd1d3df49d3d6dbb19820b5e39bd13e1eb96ffc35c8164984376adc5ee4d5988331fc909d927d13b5dfec2a2ef3106ba08c75d	explorer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Ytkyezjdqgev	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Ytkyezjdqgev\43c6d4a4 = 6feb60c9aef9f82afa812744ca328bee147b0a52443bb51306c3be3cba5889a6ea2ff7c3fa975e203efd6ffa485391839d1f9e78dac9f6c71ac7274d858f39838adc1d61712465f4a346a4bd433b48917518613686d1aadbec008cf40ef23ff66083291e7100b2567dd8f717eec11beb0ce8bfc7faf9c2d71fc9	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Ytkyezjdqgev\4187f4d8 = ed4ffc99b45815ebd37b239002f81327249227f19e2c8180de0fa2641e727ff6ffa265b55dcfcbf3f389376092b5f83354c52ae142a24d8ccece189e254541a821ae	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Ytkyezjdqgev\f93b93bd = d984f899d41494170972d4179a836f6775c632aa62c3398bc00c287da6d2c2b925a0926905174364dccafab003a27f8c70694059d4b87f7fcf53b6cfb12df47eac95162d5220ea3eceeb6afb15929a2c03bb54edb99b6b	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Ytkyezjdqgev\3c8fbb52 = 75f2ee54f6bcfb5420b54f9e5797a3f67375ee74b9e0672ce979d7fde7106bdef927179ef6e9fd7f9bfb01257842e053beef21f648a5b469ebd60b97a64666f1df11	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Ytkyezjdqgev\fb7ab3c1 = 46d211d8138e7a68efb8a2e610a3190a9da5550ea027c57c2b390f1310626617f647004c9f3020e0223e02b83131e9bba17f7168816e08472bf706542887cf17e49980058700071d	explorer.exe

Suspicious behavior: EnumeratesProcesses 42 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid	process
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
960	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe
1176	regsvr32.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

960 regsvr32.exe
1176 regsvr32.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

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

description	pid	process	target process
PID 1628 wrote to memory of 960	1628	regsvr32.exe	regsvr32.exe
PID 1628 wrote to memory of 960	1628	regsvr32.exe	regsvr32.exe
PID 1628 wrote to memory of 960	1628	regsvr32.exe	regsvr32.exe
PID 1628 wrote to memory of 960	1628	regsvr32.exe	regsvr32.exe
PID 1628 wrote to memory of 960	1628	regsvr32.exe	regsvr32.exe
PID 1628 wrote to memory of 960	1628	regsvr32.exe	regsvr32.exe
PID 1628 wrote to memory of 960	1628	regsvr32.exe	regsvr32.exe
PID 960 wrote to memory of 700	960	regsvr32.exe	explorer.exe
PID 960 wrote to memory of 700	960	regsvr32.exe	explorer.exe
PID 960 wrote to memory of 700	960	regsvr32.exe	explorer.exe
PID 960 wrote to memory of 700	960	regsvr32.exe	explorer.exe
PID 960 wrote to memory of 700	960	regsvr32.exe	explorer.exe
PID 960 wrote to memory of 700	960	regsvr32.exe	explorer.exe
PID 700 wrote to memory of 1644	700	explorer.exe	schtasks.exe
PID 700 wrote to memory of 1644	700	explorer.exe	schtasks.exe
PID 700 wrote to memory of 1644	700	explorer.exe	schtasks.exe
PID 700 wrote to memory of 1644	700	explorer.exe	schtasks.exe
PID 1148 wrote to memory of 1136	1148	taskeng.exe	regsvr32.exe
PID 1148 wrote to memory of 1136	1148	taskeng.exe	regsvr32.exe
PID 1148 wrote to memory of 1136	1148	taskeng.exe	regsvr32.exe
PID 1148 wrote to memory of 1136	1148	taskeng.exe	regsvr32.exe
PID 1148 wrote to memory of 1136	1148	taskeng.exe	regsvr32.exe
PID 1136 wrote to memory of 1176	1136	regsvr32.exe	regsvr32.exe
PID 1136 wrote to memory of 1176	1136	regsvr32.exe	regsvr32.exe
PID 1136 wrote to memory of 1176	1136	regsvr32.exe	regsvr32.exe
PID 1136 wrote to memory of 1176	1136	regsvr32.exe	regsvr32.exe
PID 1136 wrote to memory of 1176	1136	regsvr32.exe	regsvr32.exe
PID 1136 wrote to memory of 1176	1136	regsvr32.exe	regsvr32.exe
PID 1136 wrote to memory of 1176	1136	regsvr32.exe	regsvr32.exe
PID 1176 wrote to memory of 2020	1176	regsvr32.exe	explorer.exe
PID 1176 wrote to memory of 2020	1176	regsvr32.exe	explorer.exe
PID 1176 wrote to memory of 2020	1176	regsvr32.exe	explorer.exe
PID 1176 wrote to memory of 2020	1176	regsvr32.exe	explorer.exe
PID 1176 wrote to memory of 2020	1176	regsvr32.exe	explorer.exe
PID 1176 wrote to memory of 2020	1176	regsvr32.exe	explorer.exe
PID 2020 wrote to memory of 560	2020	explorer.exe	reg.exe
PID 2020 wrote to memory of 560	2020	explorer.exe	reg.exe
PID 2020 wrote to memory of 560	2020	explorer.exe	reg.exe
PID 2020 wrote to memory of 560	2020	explorer.exe	reg.exe
PID 2020 wrote to memory of 832	2020	explorer.exe	reg.exe
PID 2020 wrote to memory of 832	2020	explorer.exe	reg.exe
PID 2020 wrote to memory of 832	2020	explorer.exe	reg.exe
PID 2020 wrote to memory of 832	2020	explorer.exe	reg.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\second_stage2.bin.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1628

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\second_stage2.bin.dll
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:960

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Suspicious use of WriteProcessMemory
PID:700

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn sipcfnkasa /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\second_stage2.bin.dll\"" /SC ONCE /Z /ST 22:12 /ET 22:24
4⤵
- Creates scheduled task(s)
PID:1644

C:\Windows\system32\taskeng.exe
taskeng.exe {69A9E8F4-1556-401E-BCBD-EC0C8DE8D677} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1148

C:\Windows\system32\regsvr32.exe
regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\second_stage2.bin.dll"
2⤵
- Suspicious use of WriteProcessMemory
PID:1136

C:\Windows\SysWOW64\regsvr32.exe
-s "C:\Users\Admin\AppData\Local\Temp\second_stage2.bin.dll"
3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1176

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
4⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:2020

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\Wuciqoae" /d "0"
5⤵
PID:560

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\Oureveimvv" /d "0"
5⤵
PID:832

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\second_stage2.bin.dll
MD5
13e592747dd14009080fb054cb80bad7

SHA1
98422f1cd903685c3dd91755b9894e918e53318b

SHA256
3460c75467173d8770325ef0cae52a081088c40c3009b49c30ce156acdcfeb31

SHA512
7248e03c329909c9f8c4ae67b5f6c85795025c746538ec9f965b48ea6806e6ed5f8affe3ff8354d02cafe9b6c791558c9c9b9da30cf9c564cc5fb660b89c5a45

Download Submit
\Users\Admin\AppData\Local\Temp\second_stage2.bin.dll
MD5
13e592747dd14009080fb054cb80bad7

SHA1
98422f1cd903685c3dd91755b9894e918e53318b

SHA256
3460c75467173d8770325ef0cae52a081088c40c3009b49c30ce156acdcfeb31

SHA512
7248e03c329909c9f8c4ae67b5f6c85795025c746538ec9f965b48ea6806e6ed5f8affe3ff8354d02cafe9b6c791558c9c9b9da30cf9c564cc5fb660b89c5a45

Download Submit
memory/560-78-0x0000000000000000-mapping.dmp

Download
memory/700-62-0x0000000073F81000-0x0000000073F83000-memory.dmp

Filesize
8KB

Download
memory/700-64-0x0000000000080000-0x00000000000A1000-memory.dmp

Filesize
132KB

Download
memory/700-59-0x00000000000B0000-0x00000000000B2000-memory.dmp

Filesize
8KB

Download
memory/700-60-0x0000000000000000-mapping.dmp

Download
memory/832-79-0x0000000000000000-mapping.dmp

Download
memory/960-58-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/960-55-0x00000000751B1000-0x00000000751B3000-memory.dmp

Filesize
8KB

Download
memory/960-54-0x0000000000000000-mapping.dmp

Download
memory/960-57-0x0000000002050000-0x00000000021D0000-memory.dmp

Filesize
1.5MB

Download
memory/960-56-0x0000000001FD0000-0x000000000204B000-memory.dmp

Filesize
492KB

Download
memory/1136-65-0x0000000000000000-mapping.dmp

Download
memory/1176-68-0x0000000000000000-mapping.dmp

Download
memory/1176-71-0x0000000000360000-0x0000000000402000-memory.dmp

Filesize
648KB

Download
memory/1176-73-0x0000000000CB0000-0x0000000000D2B000-memory.dmp

Filesize
492KB

Download
memory/1176-81-0x0000000000360000-0x0000000000402000-memory.dmp

Filesize
648KB

Download
memory/1176-80-0x0000000000D30000-0x0000000000EB0000-memory.dmp

Filesize
1.5MB

Download
memory/1628-53-0x000007FEFB591000-0x000007FEFB593000-memory.dmp

Filesize
8KB

Download
memory/1644-63-0x0000000000000000-mapping.dmp

Download
memory/2020-75-0x0000000000000000-mapping.dmp

Download
memory/2020-82-0x0000000000080000-0x00000000000A1000-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