eba61461d1da64f0276919d253c8eac99c6381abbab51fcf3e61b1df18fdc1d7

General

Target
details 07.14.2020.doc
Size 113KB
Sample200715-nagg4ak94e
SHA256 eba61461d1da64f0276919d253c8eac99c6381abbab51fcf3e61b1df18fdc1d7
MD5 5d99893bced88bb6a17b2e60d0484429
SHA1 c099199a809927b03d4517419b28746de8f1ed63
SHA512 61f11bd304ca6bc384564a298adc8dfa4166bad3ca96f7bd0cefdfcc22223f39bcd4a89c9bbc577abcaf729309748a2aa25c323a468cbf855a5a19d3094d3155
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Signatures

Suspicious use of SetWindowsHookEx 19 IoCs

pid	Process
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE
792	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
792	WINWORD.EXE
792	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	3192	792	regsvr32.exe	65

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 792 wrote to memory of 3192	792	WINWORD.EXE	70
PID 792 wrote to memory of 3192	792	WINWORD.EXE	70
PID 3192 wrote to memory of 3588	3192	regsvr32.exe	71
PID 3192 wrote to memory of 3588	3192	regsvr32.exe	71
PID 3192 wrote to memory of 3588	3192	regsvr32.exe	71

Loads dropped DLL 1 IoCs

pid	Process
3588	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3588	regsvr32.exe
3588	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\details 07.14.2020.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:792
- C:\Windows\SYSTEM32\regsvr32.exe
  regsvr32 nl.tmp
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:3192
- - C:\Windows\SysWOW64\regsvr32.exe
    nl.tmp
    3⤵
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:3588

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/792-0-0x00000151ED106000-0x00000151ED119000-memory.dmp

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memory/792-1-0x00000151ED3CE000-0x00000151ED3D6000-memory.dmp

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memory/792-2-0x00000151ED3CE000-0x00000151ED3D6000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads