8ef94dc41994e0205ab9e85ab8654f2d1c97f0f8d0c3e8a5446cdd6893777c5a

Analysis

max time kernel
135s
max time network
118s
platform
windows10_x64
resource
win10v20201028
submitted
15-03-2021 06:38

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General

Target

attiv_2485.xlsb
Size

65KB
MD5

b938a5ab9ba20326ec988d90d8cd2da4
SHA1

57fe9b3c288159e576b4d692ab98d593ee5bbcb7
SHA256

8ef94dc41994e0205ab9e85ab8654f2d1c97f0f8d0c3e8a5446cdd6893777c5a
SHA512

4bf91dce7e9660124c9915fbad1ad17d23cddd89d76c0e615fddf5c3e0e5dbe464fbfa93d05b5b89b2e4637c138de509016c3e6c3a8218528260f649a71b10c2

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\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

492 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	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\attiv_2485.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:492

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/492-2-0x00007FF9F0570000-0x00007FF9F0580000-memory.dmp

Filesize
64KB

Download
memory/492-3-0x00007FF9F0570000-0x00007FF9F0580000-memory.dmp

Filesize
64KB

Download
memory/492-4-0x00007FF9F0570000-0x00007FF9F0580000-memory.dmp

Filesize
64KB

Download
memory/492-5-0x00007FFA144B0000-0x00007FFA14AE7000-memory.dmp

Filesize
6.2MB

Download
memory/492-6-0x00007FF9F0570000-0x00007FF9F0580000-memory.dmp

Filesize
64KB

Download