0a73d31be62ed11bd5e311fb4b217a7072069fb7acf6c266c6ed08dd0d0626ef

Analysis

max time kernel
136s
max time network
130s
platform
windows10_x64
resource
win10v20201028
submitted
26-11-2020 16:03

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General

Target

document-1521189458.xls
Size

331KB
MD5

7463b391fedfaf7293b22251ea0439b8
SHA1

347503bab9716eeafb2204911562cacfc8fb91ec
SHA256

0a73d31be62ed11bd5e311fb4b217a7072069fb7acf6c266c6ed08dd0d0626ef
SHA512

92b2d670ace1d1a012ffffdba2f790fa609f78cba6004afb93b15450ee1d0e4644fb575c9d4f4cd5bad4144dd1d00b92f66447b25fa5f936d493d0d549d85846

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	1512	4040	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

4040 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4040	EXCEL.EXE
4040	EXCEL.EXE
4040	EXCEL.EXE
4040	EXCEL.EXE
4040	EXCEL.EXE
4040	EXCEL.EXE
4040	EXCEL.EXE
4040	EXCEL.EXE
4040	EXCEL.EXE
4040	EXCEL.EXE
4040	EXCEL.EXE
4040	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4040 wrote to memory of 1512	4040	EXCEL.EXE	regsvr32.exe
PID 4040 wrote to memory of 1512	4040	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-1521189458.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4040

C:\Windows\SYSTEM32\regsvr32.exe
regsvr32 -s C:\giogti\mpomqr\fwpxeohi.dll
2⤵
- Process spawned unexpected child process
PID:1512

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/1512-3-0x0000000000000000-mapping.dmp

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memory/4040-2-0x00007FFFF38A0000-0x00007FFFF3ED7000-memory.dmp

Filesize
6.2MB

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