23cd34423b173c7ec0aa25f8f2729d3e621d1cb0b7cb2810c2eb850e8a35225b

Analysis

max time kernel
139s
max time network
137s
platform
windows10_x64
resource
win10v20201028
submitted
24-02-2021 17:45

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General

Target

Cancellation_Letter_1482876532-02242021.xls
Size

144KB
MD5

16f442522a4ffe6a4759023fcd5478e0
SHA1

fd2c36091fd8428d9f3c73e5e51756c8959487c8
SHA256

23cd34423b173c7ec0aa25f8f2729d3e621d1cb0b7cb2810c2eb850e8a35225b
SHA512

ef934f47d8bb368c2628e85fa5c2edb1ca5a5b856b5385663cdf367b2d05b41c0d2b21df9660ed8f8398dcd9d1e673665db5dc37bdece77aecd6723fd3038bbc

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 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

2924 EXCEL.EXE
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

EXCEL.EXE

pid process

2924 EXCEL.EXE
2924 EXCEL.EXE
2924 EXCEL.EXE
2924 EXCEL.EXE
2924 EXCEL.EXE
2924 EXCEL.EXE
2924 EXCEL.EXE
2924 EXCEL.EXE

pid	process
2924	EXCEL.EXE

pid	process
2924	EXCEL.EXE
2924	EXCEL.EXE
2924	EXCEL.EXE
2924	EXCEL.EXE
2924	EXCEL.EXE
2924	EXCEL.EXE
2924	EXCEL.EXE
2924	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_1482876532-02242021.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2924

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/2924-2-0x00007FF7FC7D0000-0x00007FF7FC7E0000-memory.dmp

Filesize
64KB

Download
memory/2924-3-0x00007FF7FC7D0000-0x00007FF7FC7E0000-memory.dmp

Filesize
64KB

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memory/2924-4-0x00007FF7FC7D0000-0x00007FF7FC7E0000-memory.dmp

Filesize
64KB

Download
memory/2924-5-0x00007FF7FC7D0000-0x00007FF7FC7E0000-memory.dmp

Filesize
64KB

Download
memory/2924-6-0x00007FF81F9E0000-0x00007FF820017000-memory.dmp

Filesize
6.2MB

Download