b2811c202ab24a37b0db936d9eddb322dd8a40d43f63d9b1877da47564fe7ebc

Analysis

max time kernel
137s
max time network
135s
platform
windows10_x64
resource
win10v20201028
submitted
26-11-2020 15:58

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General

Target

document-1448745111.xls
Size

331KB
MD5

51bdb9d3b04c8f6d463764f764266cb2
SHA1

007d6b50c6018f671c20621281f9f2f75ea17d0e
SHA256

b2811c202ab24a37b0db936d9eddb322dd8a40d43f63d9b1877da47564fe7ebc
SHA512

b28ec7fa361825e0425983f76b3fac37f8cd01fdb026fa193b1141cafc350f3172e9b4d2a62420049978ed8d489eb55e8f48ae1a517d6f1ea91d3d84115ae3bb

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	4208	4760	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

4760 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE
4760	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4760 wrote to memory of 4208	4760	EXCEL.EXE	regsvr32.exe
PID 4760 wrote to memory of 4208	4760	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-1448745111.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4760

C:\Windows\SYSTEM32\regsvr32.exe
regsvr32 -s C:\giogti\mpomqr\fwpxeohi.dll
2⤵
- Process spawned unexpected child process
PID:4208

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/4208-3-0x0000000000000000-mapping.dmp

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memory/4760-2-0x00007FFAED780000-0x00007FFAEDDB7000-memory.dmp

Filesize
6.2MB

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