42edd5cae87812ce4be7ab203000e14ac52fd795d596e45c119b5526a2624405

Analysis

max time kernel
137s
max time network
142s
platform
windows10_x64
resource
win10v20201028
submitted
26-11-2020 16:03

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General

Target

document-1507557211.xls
Size

331KB
MD5

a41b33c978d44c561f745e4ba6b17a9b
SHA1

9c0a2cb0ea5268da0c48361cf3e7979fdcd4fff4
SHA256

42edd5cae87812ce4be7ab203000e14ac52fd795d596e45c119b5526a2624405
SHA512

2b6f2c6539373700b2a167401de04e02ff4ae1594e4d17a5b0169fd3258818b39d590d03cb7272043b2884bd0778c4a4ba54881477ecdb5e85ecbf45277f9000

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	3200	2604	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

2604 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2604 wrote to memory of 3200	2604	EXCEL.EXE	regsvr32.exe
PID 2604 wrote to memory of 3200	2604	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-1507557211.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2604

C:\Windows\SYSTEM32\regsvr32.exe
regsvr32 -s C:\giogti\mpomqr\fwpxeohi.dll
2⤵
- Process spawned unexpected child process
PID:3200

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/2604-2-0x00007FF896540000-0x00007FF896B77000-memory.dmp

Filesize
6.2MB

Download
memory/3200-3-0x0000000000000000-mapping.dmp

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