b4810d726b778bc2f48443157985fdc981e1065454c3dfecec758a0ba39c8789

General

Target

official paper,07.20.doc
Size

114KB
MD5

c07adf157fbe6d718a1b3e8fc3487805
SHA1

76de5018df3376e99140479fa9b5962bb00b73a0
SHA256

b4810d726b778bc2f48443157985fdc981e1065454c3dfecec758a0ba39c8789
SHA512

1c7d63d2d1328ed56a4022aa083b6bd2ad3076272002d87c69963ec9070a5932764ba9f89d3c7c0f4f64f69ea9fbd3caa701a4ddf2380d1f153ed79236bd6277

Score

10^/10

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2316	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2316	regsvr32.exe
2316	regsvr32.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

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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE

Suspicious use of SetWindowsHookEx 19 IoCs

pid	Process
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE
384	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
384	WINWORD.EXE
384	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	2924	384	regsvr32.exe	66

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 384 wrote to memory of 2924	384	WINWORD.EXE	71
PID 384 wrote to memory of 2924	384	WINWORD.EXE	71
PID 2924 wrote to memory of 2316	2924	regsvr32.exe	72
PID 2924 wrote to memory of 2316	2924	regsvr32.exe	72
PID 2924 wrote to memory of 2316	2924	regsvr32.exe	72

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\official paper,07.20.doc" /o ""
1⤵
- Enumerates system info in registry
- Checks processor information in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
PID:384
- C:\Windows\SYSTEM32\regsvr32.exe
  regsvr32 uZ.tmp
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:2924
- - C:\Windows\SysWOW64\regsvr32.exe
    uZ.tmp
    3⤵
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:2316

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/384-0-0x0000017C17C30000-0x0000017C17C34000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads