55877dcac910a55570f923af8c26c830acb51898ecfe5db5f885bac936cf7ec1

Analysis

max time kernel
140s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 19:29

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General

Target

··/·ʯͼվ/��.xls
Size

17KB
MD5

60092560001103fd8d651ede7872bf24
SHA1

94fc3bdf256afb54be13c8dc032de0ea5b9a48f4
SHA256

27cb53b2fe5bc82d2b01fe45822814cedcb3c80611bf0320eff1acf9ebb7bd32
SHA512

1bfd44c17e798495ed324317e68899d52d92a8d97d02504f1a3cdc5c47582f1fc437da6332d9f4726056df5a9c092585b5bdcb99a51666dfa1db16c79a5b8be4
SSDEEP

384:5BB3EwxINgxMLtjVFrT8xrSYa+bTs2ZdFLI2TKUqoemuVNfGtmMw5Lpawlm7SfCV:5BB3EwxINgxMLtjVFrT8xrSYa+bTs2ZJ

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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

3440 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3440	EXCEL.EXE
3440	EXCEL.EXE
3440	EXCEL.EXE
3440	EXCEL.EXE
3440	EXCEL.EXE
3440	EXCEL.EXE
3440	EXCEL.EXE
3440	EXCEL.EXE
3440	EXCEL.EXE
3440	EXCEL.EXE
3440	EXCEL.EXE
3440	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 3440 wrote to memory of 828 3440 EXCEL.EXE splwow64.exe
PID 3440 wrote to memory of 828 3440 EXCEL.EXE splwow64.exe

description	pid	process	target process
PID 3440 wrote to memory of 828	3440	EXCEL.EXE	splwow64.exe
PID 3440 wrote to memory of 828	3440	EXCEL.EXE	splwow64.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\··\·ʯͼվ\��.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3440

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:828

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:4772

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/828-139-0x0000000000000000-mapping.dmp

Download
memory/3440-132-0x00007FF83C790000-0x00007FF83C7A0000-memory.dmp

Filesize
64KB

Download
memory/3440-133-0x00007FF83C790000-0x00007FF83C7A0000-memory.dmp

Filesize
64KB

Download
memory/3440-134-0x00007FF83C790000-0x00007FF83C7A0000-memory.dmp

Filesize
64KB

Download
memory/3440-135-0x00007FF83C790000-0x00007FF83C7A0000-memory.dmp

Filesize
64KB

Download
memory/3440-136-0x00007FF83C790000-0x00007FF83C7A0000-memory.dmp

Filesize
64KB

Download
memory/3440-137-0x00007FF83A260000-0x00007FF83A270000-memory.dmp

Filesize
64KB

Download
memory/3440-138-0x00007FF83A260000-0x00007FF83A270000-memory.dmp

Filesize
64KB

Download