bb9b7bf7e2fdefe4fcb05e44f267239955d6c75db7ebf1d6b9926b8e4b1f3330

General

Target

intelligence.07.20.doc
Size

114KB
MD5

31d82f84272d8dfd22f57694faa2cb0b
SHA1

73c7451375e7014bcd5f239412a7030428c39f26
SHA256

bb9b7bf7e2fdefe4fcb05e44f267239955d6c75db7ebf1d6b9926b8e4b1f3330
SHA512

fbd0e09176957868de9a4814ff47c3eb50aa27830c9ca63f08fd7693f946c2387020fbea6acb2b4057712d632162ec27f100c4adbdfbcb8e53ab83a749b4a97e

Score

10^/10

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
3308	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3308	regsvr32.exe
3308	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

Suspicious use of SetWindowsHookEx 20 IoCs

pid	Process
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE
1500	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
1500	WINWORD.EXE
1500	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	1204	1500	regsvr32.exe	67

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1500 wrote to memory of 1204	1500	WINWORD.EXE	73
PID 1500 wrote to memory of 1204	1500	WINWORD.EXE	73
PID 1204 wrote to memory of 3308	1204	regsvr32.exe	74
PID 1204 wrote to memory of 3308	1204	regsvr32.exe	74
PID 1204 wrote to memory of 3308	1204	regsvr32.exe	74

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\intelligence.07.20.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Windows\SYSTEM32\regsvr32.exe
  regsvr32 lV.tmp
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:1204
- - C:\Windows\SysWOW64\regsvr32.exe
    lV.tmp
    3⤵
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:3308

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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