d305da0f4ca8d0675218747ec7f6dd2357b4a4187627f40fdafca23d90e5d232

Analysis

max time kernel
73s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
05/12/2022, 17:36

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General

Target

d305da0f4ca8d0675218747ec7f6dd2357b4a4187627f40fdafca23d90e5d232.dll
Size

26KB
MD5

926ecb7f90014b663b7cff31b689517d
SHA1

943262a40dea888a3e635dad1a0977782578be46
SHA256

d305da0f4ca8d0675218747ec7f6dd2357b4a4187627f40fdafca23d90e5d232
SHA512

1d33e2c0119ebeb8a737c2ca86b209ed85b333b76d125e03b461c7f85d48fa459f193ffbb944b0b20961a33d1270a22a533e0ec3343e24a9ff4c3a0c6a2fed9f
SSDEEP

384:GhDR3tFHvfJIVNkVgJ6xzB6vh1vq2TxD99eYXzLFx+WHWyW4BbffTkGsVD35kVDp:GhJtf3S6xzqhlq2n97toBQpIS

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe rundll32.exe oife.mro printer"	rundll32.exe

Drops file in System32 directory 2 IoCs

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1796	2496	WerFault.exe	87

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
4372	WINWORD.EXE
4372	WINWORD.EXE

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
5004	rundll32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4372	WINWORD.EXE
4372	WINWORD.EXE
4372	WINWORD.EXE
4372	WINWORD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4972 wrote to memory of 5004	4972	rundll32.exe	81
PID 4972 wrote to memory of 5004	4972	rundll32.exe	81
PID 4972 wrote to memory of 5004	4972	rundll32.exe	81
PID 5004 wrote to memory of 2496	5004	rundll32.exe	87
PID 5004 wrote to memory of 2496	5004	rundll32.exe	87
PID 5004 wrote to memory of 2496	5004	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d305da0f4ca8d0675218747ec7f6dd2357b4a4187627f40fdafca23d90e5d232.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4972
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d305da0f4ca8d0675218747ec7f6dd2357b4a4187627f40fdafca23d90e5d232.dll,#1
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in System32 directory
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:5004
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:2496
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2496 -s 200
      4⤵
      Program crash
      PID:1796

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /Automation -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2496 -ip 2496
1⤵
PID:4044

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4372-138-0x00007FFD2D9C0000-0x00007FFD2D9D0000-memory.dmp

Filesize
64KB

Download
memory/4372-134-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4372-135-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4372-136-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4372-137-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4372-139-0x00007FFD2D9C0000-0x00007FFD2D9D0000-memory.dmp

Filesize
64KB

Download
memory/4372-141-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4372-142-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4372-143-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4372-144-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4372-133-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads