cd1cdf632c45f400149df4e3707d056f7712cb62234447df139a69a7f61d8949

Analysis

max time kernel
153s
max time network
194s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
05/12/2022, 05:34

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General

Target

cd1cdf632c45f400149df4e3707d056f7712cb62234447df139a69a7f61d8949.dll
Size

25KB
MD5

eb12bc7246271c4c478677fb487059ff
SHA1

903db79edaf404f4f577f194d7e0d00dac67cb70
SHA256

cd1cdf632c45f400149df4e3707d056f7712cb62234447df139a69a7f61d8949
SHA512

1e3da81a358592bb6e27120ae9a064aca93e7f2122224a50fac6f489514d26f02ae619df293dd3c6aeee978e6f39f57dd48a7ce9beb55423a1312836bb349960
SSDEEP

384:XheqfzKbZdZ2VKE1Vp4UGbBiV9dB8wixdZhLTYBeVKqoUTTsaYm:X5fzcdA0UUBiHdL0ZhgBaKXUku

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
4980	rundll32.exe
4980	rundll32.exe
4076	rundll32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSServer = "rundll32.exe C:\\Windows\\system32\\rqRHXpnl.dll,#1"	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rqRHXpnl.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\rqRHXpnl.dll	rundll32.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D8299B9-268D-42E9-9D08-54358E6982D4}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D8299B9-268D-42E9-9D08-54358E6982D4}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D8299B9-268D-42E9-9D08-54358E6982D4}\InprocServer32\ = "C:\\Windows\\SysWow64\\rqRHXpnl.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D8299B9-268D-42E9-9D08-54358E6982D4}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4980	rundll32.exe
4980	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe
4076	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4980	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4980	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4980	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 4980	2240	rundll32.exe	79
PID 2240 wrote to memory of 4980	2240	rundll32.exe	79
PID 2240 wrote to memory of 4980	2240	rundll32.exe	79
PID 4980 wrote to memory of 616	4980	rundll32.exe	6
PID 4980 wrote to memory of 4076	4980	rundll32.exe	82
PID 4980 wrote to memory of 4076	4980	rundll32.exe	82
PID 4980 wrote to memory of 4076	4980	rundll32.exe	82

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:616

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cd1cdf632c45f400149df4e3707d056f7712cb62234447df139a69a7f61d8949.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\cd1cdf632c45f400149df4e3707d056f7712cb62234447df139a69a7f61d8949.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4980
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\rqRHXpnl.dll,a
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:4076

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\rqRHXpnl.dll

Filesize
25KB

MD5
eb12bc7246271c4c478677fb487059ff

SHA1
903db79edaf404f4f577f194d7e0d00dac67cb70

SHA256
cd1cdf632c45f400149df4e3707d056f7712cb62234447df139a69a7f61d8949

SHA512
1e3da81a358592bb6e27120ae9a064aca93e7f2122224a50fac6f489514d26f02ae619df293dd3c6aeee978e6f39f57dd48a7ce9beb55423a1312836bb349960

Download Submit
C:\Windows\SysWOW64\rqRHXpnl.dll

Filesize
25KB

MD5
eb12bc7246271c4c478677fb487059ff

SHA1
903db79edaf404f4f577f194d7e0d00dac67cb70

SHA256
cd1cdf632c45f400149df4e3707d056f7712cb62234447df139a69a7f61d8949

SHA512
1e3da81a358592bb6e27120ae9a064aca93e7f2122224a50fac6f489514d26f02ae619df293dd3c6aeee978e6f39f57dd48a7ce9beb55423a1312836bb349960

Download Submit
C:\Windows\SysWOW64\rqRHXpnl.dll

Filesize
25KB

MD5
eb12bc7246271c4c478677fb487059ff

SHA1
903db79edaf404f4f577f194d7e0d00dac67cb70

SHA256
cd1cdf632c45f400149df4e3707d056f7712cb62234447df139a69a7f61d8949

SHA512
1e3da81a358592bb6e27120ae9a064aca93e7f2122224a50fac6f489514d26f02ae619df293dd3c6aeee978e6f39f57dd48a7ce9beb55423a1312836bb349960

Download Submit
C:\Windows\SysWOW64\rqRHXpnl.dll

Filesize
25KB

MD5
eb12bc7246271c4c478677fb487059ff

SHA1
903db79edaf404f4f577f194d7e0d00dac67cb70

SHA256
cd1cdf632c45f400149df4e3707d056f7712cb62234447df139a69a7f61d8949

SHA512
1e3da81a358592bb6e27120ae9a064aca93e7f2122224a50fac6f489514d26f02ae619df293dd3c6aeee978e6f39f57dd48a7ce9beb55423a1312836bb349960

Download Submit
memory/4076-141-0x0000000010000000-0x0000000010013000-memory.dmp

Filesize
76KB

Download
memory/4076-142-0x0000000010000000-0x0000000010013000-memory.dmp

Filesize
76KB

Download
memory/4980-133-0x0000000010000000-0x0000000010013000-memory.dmp

Filesize
76KB

Download
memory/4980-136-0x0000000010000000-0x0000000010013000-memory.dmp

Filesize
76KB

Download
memory/4980-137-0x0000000002A20000-0x0000000002A33000-memory.dmp

Filesize
76KB

Download