8df6b641eb89af06cba81097f8e98a1de5648524fba678d34e5ca849de41d1de

Analysis

max time kernel
150s
max time network
134s
platform
windows10_x64
resource
win10-en-20210920
submitted
21-10-2021 08:28

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General

Target

Invoice-50038584_20211020.xlsb
Size

167KB
MD5

5b3f012ec3213e5ad74a6b6621c0ac11
SHA1

07c224c9720cf9ad19b7923202ef5d4dba95c367
SHA256

8df6b641eb89af06cba81097f8e98a1de5648524fba678d34e5ca849de41d1de
SHA512

ec58bd8401e8a563ceda0e353776266357dc64f4f344df8e4429e54ec3d1b6020fc35f37f0ad127d4ad839741586d2d0c147c60e83f7afff03348108c9949e16

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

4068 EXCEL.EXE

Suspicious use of SetWindowsHookEx 15 IoCs

Processes:

EXCEL.EXE

pid	process
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	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\Invoice-50038584_20211020.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4068

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/4068-115-0x00007FFD98900000-0x00007FFD98910000-memory.dmp

Filesize
64KB

Download
memory/4068-116-0x00007FFD98900000-0x00007FFD98910000-memory.dmp

Filesize
64KB

Download
memory/4068-117-0x00007FFD98900000-0x00007FFD98910000-memory.dmp

Filesize
64KB

Download
memory/4068-118-0x00007FFD98900000-0x00007FFD98910000-memory.dmp

Filesize
64KB

Download
memory/4068-119-0x0000018D91CB0000-0x0000018D91CB2000-memory.dmp

Filesize
8KB

Download
memory/4068-120-0x0000018D91CB0000-0x0000018D91CB2000-memory.dmp

Filesize
8KB

Download
memory/4068-121-0x00007FFD98900000-0x00007FFD98910000-memory.dmp

Filesize
64KB

Download
memory/4068-122-0x0000018D91CB0000-0x0000018D91CB2000-memory.dmp

Filesize
8KB

Download
memory/4068-128-0x00007FFD95760000-0x00007FFD95770000-memory.dmp

Filesize
64KB

Download
memory/4068-129-0x00007FFD95760000-0x00007FFD95770000-memory.dmp

Filesize
64KB

Download