aa43a0173f2a2ba38d22df91178a9783c42f4e2a9a0947592a3ede9eef05f96b

General

Target

ST.108.xls
Size

149KB
MD5

daa44ecf68d1e253ea6ee80264251475
SHA1

0897bd18d2e57c19d531ca5bfedcddffe19494b8
SHA256

aa43a0173f2a2ba38d22df91178a9783c42f4e2a9a0947592a3ede9eef05f96b
SHA512

c03e4aae0f13feed47d74a758593a8bbb8400caa207bb38a3e8f972e374f0a589018c16df9b85de420b806551246e52fe4dfdb9308882a729b880a88581b64c6

Score

10^/10

Malware Config

Signatures

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3676	EXCEL.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\EXCEL.EXE is not expected to spawn this process	3216	3676	explorer.exe	66

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3676 wrote to memory of 3216	3676	EXCEL.EXE	70
PID 3676 wrote to memory of 3216	3676	EXCEL.EXE	70
PID 2912 wrote to memory of 2668	2912	explorer.exe	72
PID 2912 wrote to memory of 2668	2912	explorer.exe	72

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000_Classes\Local Settings	explorer.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	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.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	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3676	EXCEL.EXE
3676	EXCEL.EXE
3676	EXCEL.EXE
3676	EXCEL.EXE
3676	EXCEL.EXE
3676	EXCEL.EXE
3676	EXCEL.EXE
3676	EXCEL.EXE
3676	EXCEL.EXE
3676	EXCEL.EXE
3676	EXCEL.EXE
3676	EXCEL.EXE

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\ST.108.xls"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
PID:3676
- C:\Windows\explorer.exe
  explorer.exe C:\Users\Admin\AppData\Local\Temp\fP3PwKsx.vbs
  2⤵
  - Process spawned unexpected child process
  PID:3216

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Suspicious use of WriteProcessMemory
- Modifies registry class
PID:2912
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\fP3PwKsx.vbs"
  2⤵
  PID:2668

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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