e123a616f5cf5e9dd7d8a458ba70852a7e5c4455cdf5285f42e21027662a5d64

Analysis

max time kernel
139s
max time network
140s
platform
windows10_x64
resource
win10v20201028
submitted
26-11-2020 16:00

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General

Target

document-145773683.xls
Size

331KB
MD5

4e8592cb27f14eb4abc3beac17098fac
SHA1

7224b3683e542f6bb6990925f14f37bb79d5aa6f
SHA256

e123a616f5cf5e9dd7d8a458ba70852a7e5c4455cdf5285f42e21027662a5d64
SHA512

4ca06cec498c8db7b7834030f8c28c032a1140b94dc3e2ce0cd86cad688fe15f1ae9673476ef1583989e2dcc23ac6f42dd328daa0598f9d1688a311c0c99ca3f

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

regsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2864	756	regsvr32.exe	EXCEL.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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

756 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 756 wrote to memory of 2864 756 EXCEL.EXE regsvr32.exe
PID 756 wrote to memory of 2864 756 EXCEL.EXE regsvr32.exe

description	pid	process	target process
PID 756 wrote to memory of 2864	756	EXCEL.EXE	regsvr32.exe
PID 756 wrote to memory of 2864	756	EXCEL.EXE	regsvr32.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\document-145773683.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:756

C:\Windows\SYSTEM32\regsvr32.exe
regsvr32 -s C:\giogti\mpomqr\fwpxeohi.dll
2⤵
- Process spawned unexpected child process
PID:2864

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/756-2-0x00007FFFCF0E0000-0x00007FFFCF717000-memory.dmp

Filesize
6.2MB

Download
memory/2864-3-0x0000000000000000-mapping.dmp

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