e6f5a084349ae8624d4fb3bf6dba8e243c474ee81a7e4ef9e3568f5b5acd04db

Analysis

max time kernel
136s
max time network
131s
platform
windows10_x64
resource
win10v20201028
submitted
26-11-2020 16:02

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General

Target

document-1511069982.xls
Size

331KB
MD5

de02c6014fdaf97ff300ea15c66a0fd9
SHA1

fbc9ac2531ef6e7a21200f3dc9350ee01da62a2a
SHA256

e6f5a084349ae8624d4fb3bf6dba8e243c474ee81a7e4ef9e3568f5b5acd04db
SHA512

b53d4f67cdc7351ad3283213e570f1cc113cac3db5592a8ec70845b23a8b14a8d0b54ff79d2799cf51be8e89a2acd38c3364d8439dcd7a22b864e32cab071b74

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	596	4808	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

4808 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 4808 wrote to memory of 596 4808 EXCEL.EXE regsvr32.exe
PID 4808 wrote to memory of 596 4808 EXCEL.EXE regsvr32.exe

description	pid	process	target process
PID 4808 wrote to memory of 596	4808	EXCEL.EXE	regsvr32.exe
PID 4808 wrote to memory of 596	4808	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-1511069982.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4808

C:\Windows\SYSTEM32\regsvr32.exe
regsvr32 -s C:\giogti\mpomqr\fwpxeohi.dll
2⤵
- Process spawned unexpected child process
PID:596

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/596-3-0x0000000000000000-mapping.dmp

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memory/4808-2-0x00007FFA613D0000-0x00007FFA61A07000-memory.dmp

Filesize
6.2MB

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