Malware Analysis Report

2024-11-13 17:05

Sample ID 230607-cyhmnsge84
Target qak.dll
SHA256 2f6ae770a5d56ed8a2cfe262e196363b5c80e58468c66ff36cdf9c75306c2c55
Tags
qakbot bb31 1685959443 banker stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

2f6ae770a5d56ed8a2cfe262e196363b5c80e58468c66ff36cdf9c75306c2c55

Threat Level: Known bad

The file qak.dll was found to be: Known bad.

Malicious Activity Summary

qakbot bb31 1685959443 banker stealer trojan

Qakbot/Qbot

Drops file in System32 directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-06-07 02:28

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-06-07 02:28

Reported

2023-06-07 02:31

Platform

win10v2004-20230220-en

Max time kernel

150s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\qak.dll,#1

Signatures

Qakbot/Qbot

trojan banker stealer qakbot

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\System32\%AppData%\Microsoft\Windows\Start Menu\Programs\Windows PowerShell\Windows PowerShell.lnk C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe N/A
N/A N/A C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A
N/A N/A C:\Windows\SysWOW64\wermgr.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4068 wrote to memory of 1908 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4068 wrote to memory of 1908 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4068 wrote to memory of 1908 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2164 wrote to memory of 1644 N/A C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe C:\Windows\system32\rundll32.exe
PID 2164 wrote to memory of 1644 N/A C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe C:\Windows\system32\rundll32.exe
PID 1644 wrote to memory of 2152 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1644 wrote to memory of 2152 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1644 wrote to memory of 2152 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2152 wrote to memory of 4036 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wermgr.exe
PID 2152 wrote to memory of 4036 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wermgr.exe
PID 2152 wrote to memory of 4036 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wermgr.exe
PID 2152 wrote to memory of 4036 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wermgr.exe
PID 2152 wrote to memory of 4036 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wermgr.exe
PID 2152 wrote to memory of 4036 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wermgr.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\qak.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\qak.dll,#1

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe

"PowerShell.exe" -noexit -command Set-Location -literalPath 'C:\Users\Admin\AppData\Local\Temp'

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" .\qak.dll,next

C:\Windows\SysWOW64\rundll32.exe

"C:\Windows\system32\rundll32.exe" .\qak.dll,next

C:\Windows\SysWOW64\wermgr.exe

C:\Windows\SysWOW64\wermgr.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 39.146.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 14.103.197.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 20.189.173.9:443 tcp
US 8.8.8.8:53 35.146.190.20.in-addr.arpa udp
US 8.8.8.8:53 44.8.109.52.in-addr.arpa udp

Files

memory/2164-135-0x000001BDEE0A0000-0x000001BDEE0C2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_duffywp5.pbc.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2164-145-0x000001BDEE250000-0x000001BDEE260000-memory.dmp

memory/2164-146-0x000001BDEE250000-0x000001BDEE260000-memory.dmp

memory/2164-147-0x000001BDEFBB0000-0x000001BDEFBF4000-memory.dmp

memory/2164-148-0x000001BDEE250000-0x000001BDEE260000-memory.dmp

memory/2164-149-0x000001BDEFC80000-0x000001BDEFCF6000-memory.dmp

memory/2164-150-0x000001BDEE220000-0x000001BDEE23E000-memory.dmp

memory/2164-151-0x000001BDEE250000-0x000001BDEE260000-memory.dmp

memory/2164-152-0x000001BDEE250000-0x000001BDEE260000-memory.dmp

memory/2164-153-0x000001BDEE250000-0x000001BDEE260000-memory.dmp

memory/2152-156-0x00000000005E0000-0x00000000005E3000-memory.dmp

memory/2152-157-0x0000000002230000-0x0000000002254000-memory.dmp

memory/4036-162-0x0000000000C30000-0x0000000000C32000-memory.dmp

memory/4036-163-0x0000000000C00000-0x0000000000C24000-memory.dmp

memory/4036-169-0x0000000000C00000-0x0000000000C24000-memory.dmp

memory/4036-170-0x0000000000C00000-0x0000000000C24000-memory.dmp

memory/4036-171-0x0000000000C00000-0x0000000000C24000-memory.dmp

memory/4036-172-0x0000000000C00000-0x0000000000C24000-memory.dmp

memory/4036-173-0x0000000000C00000-0x0000000000C24000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-06-07 02:28

Reported

2023-06-07 02:31

Platform

win7-20230220-en

Max time kernel

31s

Max time network

34s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\qak.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2008 wrote to memory of 1948 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2008 wrote to memory of 1948 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2008 wrote to memory of 1948 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2008 wrote to memory of 1948 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2008 wrote to memory of 1948 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2008 wrote to memory of 1948 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2008 wrote to memory of 1948 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\qak.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\qak.dll,#1

Network

N/A

Files

N/A