df035773aa9d757b3d5bfc1077be6781847b232a711a177fdf049034ee5937c6

Analysis

max time kernel
115s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
10-10-2022 19:04

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General

Target

df035773aa9d757b3d5bfc1077be6781847b232a711a177fdf049034ee5937c6.dll
Size

1.1MB
MD5

5ec46ff1078627357046a7fc16353f6b
SHA1

9dade4e808dbfdb0038aceaf296f2e7687cf2f3c
SHA256

df035773aa9d757b3d5bfc1077be6781847b232a711a177fdf049034ee5937c6
SHA512

7246a49f9dcb94a8ee98dcebc87dce8f28882baf4da0b1c9a4f13c965d923bbe75b0c708d4005da0d7a9220062ace58aac03044dad6cbbc752235193ba11b70e
SSDEEP

6144:Rv0nl5VdIouKbRko8mQa9zoh/4pIeJ/iFU1wLhPFe00v+yRd:Rv07TI76RFgAwpA00V

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1440	4844	WerFault.exe	81

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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings	explorer.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
1992	WINWORD.EXE
1992	WINWORD.EXE

Suspicious use of SetWindowsHookEx 18 IoCs

pid	Process
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE
1992	WINWORD.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3192 wrote to memory of 4844	3192	rundll32.exe	81
PID 3192 wrote to memory of 4844	3192	rundll32.exe	81
PID 3192 wrote to memory of 4844	3192	rundll32.exe	81
PID 4844 wrote to memory of 4936	4844	rundll32.exe	82
PID 4844 wrote to memory of 4936	4844	rundll32.exe	82
PID 4844 wrote to memory of 4936	4844	rundll32.exe	82
PID 1204 wrote to memory of 1992	1204	explorer.exe	86
PID 1204 wrote to memory of 1992	1204	explorer.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\df035773aa9d757b3d5bfc1077be6781847b232a711a177fdf049034ee5937c6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3192
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\df035773aa9d757b3d5bfc1077be6781847b232a711a177fdf049034ee5937c6.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4844
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe "C:\Users\Admin\AppData\Local\Temp\Thumoi.doc"
    3⤵
    PID:4936
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4844 -s 676
    3⤵
    - Program crash
    PID:1440

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
  "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Thumoi.doc" /o ""
  2⤵
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  PID:1992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4844 -ip 4844
1⤵
PID:4544

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Thumoi.doc

Filesize
17KB

MD5
316100dc2c8020a4d6a26d8389c52954

SHA1
0b2fa401f0986faba100be729b0eb194cba2e81f

SHA256
1514072fc616162a2537a224dc2803ff41cad4a24774788f0746992d043e0086

SHA512
d9860d175b448bc558d8e7e6508b354b8f3a862cc190fb1bfd116660393b7f2033131353736a434ee387168a47b64bbd5a7117259cb4bbd8fc79a0a6f970d6e9

Download Submit
memory/1992-137-0x00007FFBA7350000-0x00007FFBA7360000-memory.dmp

Filesize
64KB

Download
memory/1992-140-0x00007FFBA7350000-0x00007FFBA7360000-memory.dmp

Filesize
64KB

Download
memory/1992-136-0x00007FFBA7350000-0x00007FFBA7360000-memory.dmp

Filesize
64KB

Download
memory/1992-138-0x00007FFBA7350000-0x00007FFBA7360000-memory.dmp

Filesize
64KB

Download
memory/1992-147-0x00007FFBA7350000-0x00007FFBA7360000-memory.dmp

Filesize
64KB

Download
memory/1992-139-0x00007FFBA7350000-0x00007FFBA7360000-memory.dmp

Filesize
64KB

Download
memory/1992-145-0x00007FFBA7350000-0x00007FFBA7360000-memory.dmp

Filesize
64KB

Download
memory/1992-141-0x00007FFBA4B80000-0x00007FFBA4B90000-memory.dmp

Filesize
64KB

Download
memory/1992-142-0x00007FFBA4B80000-0x00007FFBA4B90000-memory.dmp

Filesize
64KB

Download
memory/1992-144-0x00007FFBA7350000-0x00007FFBA7360000-memory.dmp

Filesize
64KB

Download
memory/1992-146-0x00007FFBA7350000-0x00007FFBA7360000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads