2b8503acb44ac658605d6478039c3361e7cc74874b925c86c0c7a5e5e16d2974

Analysis

max time kernel
148s
max time network
151s
platform
windows10_x64
resource
win10v20201028
submitted
26-11-2020 16:02

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General

Target

document-1541567989.xls
Size

331KB
MD5

0463cb4fd1e555a186f5b3a8af341f09
SHA1

17480d19b34034da23caeb769dfedd3c20a0c98f
SHA256

2b8503acb44ac658605d6478039c3361e7cc74874b925c86c0c7a5e5e16d2974
SHA512

dfb247c618e1ceb5d8124ba20127999582388be840c5335c2a53b6f875076c7af86a7ad0a8115e4aa956e48fa7380b741c4a762056b79b28363972a767edc2a3

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	3736	1176	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

1176 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1176 wrote to memory of 3736	1176	EXCEL.EXE	regsvr32.exe
PID 1176 wrote to memory of 3736	1176	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-1541567989.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1176

C:\Windows\SYSTEM32\regsvr32.exe
regsvr32 -s C:\giogti\mpomqr\fwpxeohi.dll
2⤵
- Process spawned unexpected child process
PID:3736

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/1176-2-0x00007FFE6D900000-0x00007FFE6DF37000-memory.dmp

Filesize
6.2MB

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memory/3736-3-0x0000000000000000-mapping.dmp

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