f780e6a155e84da6486e7b0cdf126432c3c39da3eeb9927d14786b3640bb4ee9

Analysis

max time kernel
135s
max time network
129s
platform
windows10_x64
resource
win10v20201028
submitted
24-02-2021 15:39

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General

Target

Cancellation_Letter_735340512-02242021.xls
Size

144KB
MD5

15fd599a562dcb050c754f6a7ae163fe
SHA1

4c745cf23a19fd0b36924e49cfe61945694d3746
SHA256

f780e6a155e84da6486e7b0cdf126432c3c39da3eeb9927d14786b3640bb4ee9
SHA512

b1c8e702bf1cc399de74885a9a628880ea991adcf0adf9c39846574c5e604105fb6a5749736ba71514a4a102b581f1cef0fb983cfcb68505168f580715aa1872

Score

1^/10

Malware Config

Signatures

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4772 EXCEL.EXE
Suspicious use of SetWindowsHookEx 9 IoCs

Processes:

EXCEL.EXE

pid process

4772 EXCEL.EXE
4772 EXCEL.EXE
4772 EXCEL.EXE
4772 EXCEL.EXE
4772 EXCEL.EXE
4772 EXCEL.EXE
4772 EXCEL.EXE
4772 EXCEL.EXE
4772 EXCEL.EXE

pid	process
4772	EXCEL.EXE

pid	process
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	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\Cancellation_Letter_735340512-02242021.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4772

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/4772-2-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp

Filesize
64KB

Download
memory/4772-3-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp

Filesize
64KB

Download
memory/4772-4-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp

Filesize
64KB

Download
memory/4772-5-0x00007FFF45410000-0x00007FFF45A47000-memory.dmp

Filesize
6.2MB

Download
memory/4772-6-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp

Filesize
64KB

Download