qakbot | d7ebf4872795a274ac86598fd2cbcad77b8cf9ddf81b854d7b480901f7f3b236

General

Target

second_stage3.bin.dll
Size

665KB
MD5

f92528a71e6f367c39195d12bc9d30c4
SHA1

1d5795de9f36d216d842c79af28d7f8d245f733e
SHA256

d7ebf4872795a274ac86598fd2cbcad77b8cf9ddf81b854d7b480901f7f3b236
SHA512

f9f61831c5d3126af97ea708b4729254412705792625755348e3286f5b60f6ee6ddc2fdc518ab543afef1067b728fa26e3614daf5b86a18ec450c3eeed36cf7a

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

1296 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

1472 schtasks.exe

pid	process
1296	regsvr32.exe

pid	process
1472	schtasks.exe

Modifies data under HKEY_USERS 10 IoCs

Processes:

explorer.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Nvqofeww\880639f = 884b67eec08f2ee862c58ee524a3246c14d5b0fa6a9f03ab51e33fc9a776958c9ab8e3186a84189763520a3ed9f61a6b4eae98d3bf1fd581b95b539433d0ca33168ce026280f4d81	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Nvqofeww\faeabb42 = 3526a9559fd87e7c3896ff445cc8b170f4a2bc04d0c3d902065ba3a5286415c0c656f4dc154dd6e7591a14228fa46ff46c7f555077e98956490f05b95df0091ed1412a4ceecb29ec4d3cd26bed0e	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Nvqofeww\85a3d4b4 = fc970ff88096cc92d1b0ef4f728927cd03b93310e44935d83c22b49af56318c73d68df45c48b09cf2e832a05b1864e55514729059f82a09411484e5ed15ab85605221b8be9b13441676d244143f206a9eef62e67d2674847fb9f79bd4701	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Nvqofeww\85a3d4b4 = fc9718f88096f9b06584036574e07650d89223401a9af7a3919be7fd104e58439efbb545940fe1170ddff47f0933c953684a93bdcdb49ecb1d826f2c8c4892ae134275eee437eece92	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Nvqofeww\b03c04fa = dc9dc637b8e59e4bffb2554ceccb938fb0d5b6cdd523ae36bb175e88bb05a37fd65100ff406629863a7a32477ba608d20f6a6f3f269dcf0bcd834aa3e0913e0481b4327f7018703268b9fd0412805fa81e7f5067c8bf9340224db530eb5338cbb577516a138f944015dcdcd267ac1bf837075b7a3812991a1dea7a14079bdf690b1564cc7ce5d65d2f0c84271b00c9faccd8ff69	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Nvqofeww\ac143e3 = 904c8c9c6fbb47db43c4b52cceed5366c0d34a	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Nvqofeww\77c90c69 = 7434690ae6db736e0f3f87c40161ce6b5fb9bc8aa0c01c7610b9e914583c09cce84221db030d09f1e32f1c2ae4bcfa1c695eb8668955a51bbfb1edc77c39c7a2c0c3088c38547c3ae9422d6338d3dbda7a3b5f045f41f48e802702a6a32c18fd0571f70ee10032311da676	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Nvqofeww\cf756b0c = f752fe76fb7e867025dbd91180cbd79388ff50cb602ea96e9b5992cd2f0930a7a67c5774585de6dfc42365cd9e4970d1f4dedde6428e7f4809510da2de248019a9	explorer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Nvqofeww	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Nvqofeww\b27d2486 = e23dbe27727751d853428a3d7c7b83211272630e9eacdd68ff7e435003ac316cb45040a2af8f18a3110bbc1e6007a2909424b09fb067e9b50d01f9626d2bcbc3146648ba3540466ddf27c4a4b0c0dd82e494d007eb81d2bfa875299bf58a71595578266b44285d8cbb2f70623e	explorer.exe

Suspicious behavior: EnumeratesProcesses 42 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid	process
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1612	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe
1296	regsvr32.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1612 regsvr32.exe
1296 regsvr32.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

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

description	pid	process	target process
PID 956 wrote to memory of 1612	956	regsvr32.exe	regsvr32.exe
PID 956 wrote to memory of 1612	956	regsvr32.exe	regsvr32.exe
PID 956 wrote to memory of 1612	956	regsvr32.exe	regsvr32.exe
PID 956 wrote to memory of 1612	956	regsvr32.exe	regsvr32.exe
PID 956 wrote to memory of 1612	956	regsvr32.exe	regsvr32.exe
PID 956 wrote to memory of 1612	956	regsvr32.exe	regsvr32.exe
PID 956 wrote to memory of 1612	956	regsvr32.exe	regsvr32.exe
PID 1612 wrote to memory of 1500	1612	regsvr32.exe	explorer.exe
PID 1612 wrote to memory of 1500	1612	regsvr32.exe	explorer.exe
PID 1612 wrote to memory of 1500	1612	regsvr32.exe	explorer.exe
PID 1612 wrote to memory of 1500	1612	regsvr32.exe	explorer.exe
PID 1612 wrote to memory of 1500	1612	regsvr32.exe	explorer.exe
PID 1612 wrote to memory of 1500	1612	regsvr32.exe	explorer.exe
PID 1500 wrote to memory of 1472	1500	explorer.exe	schtasks.exe
PID 1500 wrote to memory of 1472	1500	explorer.exe	schtasks.exe
PID 1500 wrote to memory of 1472	1500	explorer.exe	schtasks.exe
PID 1500 wrote to memory of 1472	1500	explorer.exe	schtasks.exe
PID 1864 wrote to memory of 1736	1864	taskeng.exe	regsvr32.exe
PID 1864 wrote to memory of 1736	1864	taskeng.exe	regsvr32.exe
PID 1864 wrote to memory of 1736	1864	taskeng.exe	regsvr32.exe
PID 1864 wrote to memory of 1736	1864	taskeng.exe	regsvr32.exe
PID 1864 wrote to memory of 1736	1864	taskeng.exe	regsvr32.exe
PID 1736 wrote to memory of 1296	1736	regsvr32.exe	regsvr32.exe
PID 1736 wrote to memory of 1296	1736	regsvr32.exe	regsvr32.exe
PID 1736 wrote to memory of 1296	1736	regsvr32.exe	regsvr32.exe
PID 1736 wrote to memory of 1296	1736	regsvr32.exe	regsvr32.exe
PID 1736 wrote to memory of 1296	1736	regsvr32.exe	regsvr32.exe
PID 1736 wrote to memory of 1296	1736	regsvr32.exe	regsvr32.exe
PID 1736 wrote to memory of 1296	1736	regsvr32.exe	regsvr32.exe
PID 1296 wrote to memory of 1896	1296	regsvr32.exe	explorer.exe
PID 1296 wrote to memory of 1896	1296	regsvr32.exe	explorer.exe
PID 1296 wrote to memory of 1896	1296	regsvr32.exe	explorer.exe
PID 1296 wrote to memory of 1896	1296	regsvr32.exe	explorer.exe
PID 1296 wrote to memory of 1896	1296	regsvr32.exe	explorer.exe
PID 1296 wrote to memory of 1896	1296	regsvr32.exe	explorer.exe
PID 1896 wrote to memory of 280	1896	explorer.exe	reg.exe
PID 1896 wrote to memory of 280	1896	explorer.exe	reg.exe
PID 1896 wrote to memory of 280	1896	explorer.exe	reg.exe
PID 1896 wrote to memory of 280	1896	explorer.exe	reg.exe
PID 1896 wrote to memory of 240	1896	explorer.exe	reg.exe
PID 1896 wrote to memory of 240	1896	explorer.exe	reg.exe
PID 1896 wrote to memory of 240	1896	explorer.exe	reg.exe
PID 1896 wrote to memory of 240	1896	explorer.exe	reg.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\second_stage3.bin.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:956

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\second_stage3.bin.dll
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1612

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Suspicious use of WriteProcessMemory
PID:1500

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn zonyisjiyl /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\second_stage3.bin.dll\"" /SC ONCE /Z /ST 22:12 /ET 22:24
4⤵
- Creates scheduled task(s)
PID:1472

C:\Windows\system32\taskeng.exe
taskeng.exe {A16AFF65-3166-4BA1-A1B9-2A6CF389817B} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1864

C:\Windows\system32\regsvr32.exe
regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\second_stage3.bin.dll"
2⤵
- Suspicious use of WriteProcessMemory
PID:1736

C:\Windows\SysWOW64\regsvr32.exe
-s "C:\Users\Admin\AppData\Local\Temp\second_stage3.bin.dll"
3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1296

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
4⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:1896

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\Bsqpfuynaqn" /d "0"
5⤵
PID:280

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\Syaiyyxonm" /d "0"
5⤵
PID:240

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\second_stage3.bin.dll
MD5
f92528a71e6f367c39195d12bc9d30c4

SHA1
1d5795de9f36d216d842c79af28d7f8d245f733e

SHA256
d7ebf4872795a274ac86598fd2cbcad77b8cf9ddf81b854d7b480901f7f3b236

SHA512
f9f61831c5d3126af97ea708b4729254412705792625755348e3286f5b60f6ee6ddc2fdc518ab543afef1067b728fa26e3614daf5b86a18ec450c3eeed36cf7a

Download Submit
\Users\Admin\AppData\Local\Temp\second_stage3.bin.dll
MD5
f92528a71e6f367c39195d12bc9d30c4

SHA1
1d5795de9f36d216d842c79af28d7f8d245f733e

SHA256
d7ebf4872795a274ac86598fd2cbcad77b8cf9ddf81b854d7b480901f7f3b236

SHA512
f9f61831c5d3126af97ea708b4729254412705792625755348e3286f5b60f6ee6ddc2fdc518ab543afef1067b728fa26e3614daf5b86a18ec450c3eeed36cf7a

Download Submit
memory/240-82-0x0000000000000000-mapping.dmp

Download
memory/280-81-0x0000000000000000-mapping.dmp

Download
memory/956-54-0x000007FEFC4A1000-0x000007FEFC4A3000-memory.dmp

Filesize
8KB

Download
memory/1296-83-0x0000000000CC0000-0x0000000000E40000-memory.dmp

Filesize
1.5MB

Download
memory/1296-76-0x0000000000C40000-0x0000000000CBB000-memory.dmp

Filesize
492KB

Download
memory/1296-74-0x0000000000340000-0x00000000003E2000-memory.dmp

Filesize
648KB

Download
memory/1296-71-0x0000000000000000-mapping.dmp

Download
memory/1296-84-0x0000000000340000-0x00000000003E2000-memory.dmp

Filesize
648KB

Download
memory/1472-67-0x0000000000000000-mapping.dmp

Download
memory/1500-66-0x0000000000110000-0x0000000000131000-memory.dmp

Filesize
132KB

Download
memory/1500-65-0x0000000074E91000-0x0000000074E93000-memory.dmp

Filesize
8KB

Download
memory/1500-63-0x0000000000000000-mapping.dmp

Download
memory/1500-62-0x00000000000C0000-0x00000000000C2000-memory.dmp

Filesize
8KB

Download
memory/1612-60-0x0000000002230000-0x00000000023B0000-memory.dmp

Filesize
1.5MB

Download
memory/1612-61-0x00000000009C0000-0x0000000000A62000-memory.dmp

Filesize
648KB

Download
memory/1612-59-0x0000000000BB0000-0x0000000000C2B000-memory.dmp

Filesize
492KB

Download
memory/1612-57-0x00000000009C0000-0x0000000000A62000-memory.dmp

Filesize
648KB

Download
memory/1612-56-0x0000000075D11000-0x0000000075D13000-memory.dmp

Filesize
8KB

Download
memory/1612-55-0x0000000000000000-mapping.dmp

Download
memory/1736-68-0x0000000000000000-mapping.dmp

Download
memory/1896-78-0x0000000000000000-mapping.dmp

Download
memory/1896-85-0x00000000000D0000-0x00000000000F1000-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