61862ac220fe94b48316b8c84c4a88801653da2c5e9fedf562b1759c2f97ca99

Analysis

max time kernel
139s
max time network
132s
platform
windows10_x64
resource
win10v20201028
submitted
26-11-2020 16:02

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General

Target

document-1475334804.xls
Size

332KB
MD5

a20a7d414a714264f75ffcc37abe92ee
SHA1

7b27f6584b526344fb5f0d1543240fe22d8c73ee
SHA256

61862ac220fe94b48316b8c84c4a88801653da2c5e9fedf562b1759c2f97ca99
SHA512

562b7d3341f800f6ada19f2d4e00437a720443736b1e3a61b56fbe7c0e295cdc0f72bc8f5ac59f17858bcf83082a80de6d8fa8efad9acd9948f00f1624b833cb

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	3304	4636	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4636 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4636 EXCEL.EXE
4636 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4636	EXCEL.EXE
4636	EXCEL.EXE
4636	EXCEL.EXE
4636	EXCEL.EXE
4636	EXCEL.EXE
4636	EXCEL.EXE
4636	EXCEL.EXE
4636	EXCEL.EXE
4636	EXCEL.EXE
4636	EXCEL.EXE
4636	EXCEL.EXE
4636	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4636 wrote to memory of 3304	4636	EXCEL.EXE	regsvr32.exe
PID 4636 wrote to memory of 3304	4636	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-1475334804.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4636

C:\Windows\SYSTEM32\regsvr32.exe
regsvr32 -s C:\giogti\mpomqr\fwpxeohi.dll
2⤵
- Process spawned unexpected child process
PID:3304

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/3304-3-0x0000000000000000-mapping.dmp

Download
memory/4636-2-0x00007FF9C4C20000-0x00007FF9C5257000-memory.dmp

Filesize
6.2MB

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