37d476eace9a5e5658238378c20ac8c58a2f20388999c32bc5519ed922fbff6f

General

Target
legal paper,07.14.20.doc
Size 114KB
Sample200715-7nnr23d7r2
SHA256 37d476eace9a5e5658238378c20ac8c58a2f20388999c32bc5519ed922fbff6f
MD5 e9e5882b93c530ce7c8d5e7ba2492bf9
SHA1 aeb67953032be7740ee2b661d088f68b19150d9e
SHA512 c42f625bc1ca4281904921871e97befb3aff8ae5035b0ac08f8a53a496313c682e35230368bd476b32ef7c53f144c5939dbcc70f787b7928be4e454ed7fa47bb
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Signatures

Suspicious use of SetWindowsHookEx 20 IoCs

pid	Process
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE
1008	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
1008	WINWORD.EXE
1008	WINWORD.EXE

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	2728	1008	regsvr32.exe	65

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1008 wrote to memory of 2728	1008	WINWORD.EXE	72
PID 1008 wrote to memory of 2728	1008	WINWORD.EXE	72
PID 2728 wrote to memory of 3864	2728	regsvr32.exe	74
PID 2728 wrote to memory of 3864	2728	regsvr32.exe	74
PID 2728 wrote to memory of 3864	2728	regsvr32.exe	74

Loads dropped DLL 1 IoCs

pid	Process
3864	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3864	regsvr32.exe
3864	regsvr32.exe

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

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\legal paper,07.14.20.doc" /o ""
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
PID:1008
- C:\Windows\SYSTEM32\regsvr32.exe
  regsvr32 FZ.tmp
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:2728
- - C:\Windows\SysWOW64\regsvr32.exe
    FZ.tmp
    3⤵
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:3864

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1008-2-0x000001880AC00000-0x000001880AC47000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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