40b0fe398f25fea75acfff6a4d9a13c09513e355f1b35eedc3e0752f3ed24b20

Analysis

max time kernel
136s
max time network
119s
platform
windows10_x64
resource
win10v20201028
submitted
20-01-2021 14:06

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General

Target

PO0495858558585_JAN2021.xlsx
Size

2.3MB
MD5

f2cbf4c0b32a85ea9649cdb8cd06c828
SHA1

067de878fef186f7e21cde3864078a918f2866a4
SHA256

40b0fe398f25fea75acfff6a4d9a13c09513e355f1b35eedc3e0752f3ed24b20
SHA512

b8268b753c4a4e95ab879ee156ccd653b78ba97aefb445a520fe83a6674a8f32e2b9ca73ec97367082d71c15470b2ec94e326338f1d58c0e517434a8a036be46

Score

5^/10

ransomware

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
ransomware

System Information Discovery
T1082

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

3496 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3496 EXCEL.EXE
3496 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.EXE
3496	EXCEL.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\PO0495858558585_JAN2021.xlsx"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:3496

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/3496-2-0x00007FF7FA740000-0x00007FF7FA750000-memory.dmp

Filesize
64KB

Download
memory/3496-3-0x00007FF7FA740000-0x00007FF7FA750000-memory.dmp

Filesize
64KB

Download
memory/3496-4-0x00007FF7FA740000-0x00007FF7FA750000-memory.dmp

Filesize
64KB

Download
memory/3496-5-0x00007FF81E240000-0x00007FF81E877000-memory.dmp

Filesize
6.2MB

Download
memory/3496-6-0x00007FF7FA740000-0x00007FF7FA750000-memory.dmp

Filesize
64KB

Download