5f8f61db2946d59289d17477069b298f13de7883e808362a13ead246738ff3f0

Analysis

max time kernel
132s
max time network
163s
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 10:05

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General

Target

5f8f61db2946d59289d17477069b298f13de7883e808362a13ead246738ff3f0.xls
Size

506KB
MD5

04794f27409df5cd0bfbf8b0bf9bb2e5
SHA1

f6b861397bd6e66ce262e80ee910219f0c0ea0d2
SHA256

5f8f61db2946d59289d17477069b298f13de7883e808362a13ead246738ff3f0
SHA512

79ba5e3295c813308b17e670e1acd38e2ca48792b73019468c2207991996f25534d4a33f8617aade7ba23a71fb3f0b6485968c6109ecd09a50358655e177cbad
SSDEEP

6144:Sc1i8T2E6ENxnMxPXIn+zxOLjwu5nzBrhMVAeAxvJ:U8iEXzJ+ILckBNx

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

5104 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
5104	EXCEL.EXE
5104	EXCEL.EXE
5104	EXCEL.EXE
5104	EXCEL.EXE
5104	EXCEL.EXE
5104	EXCEL.EXE
5104	EXCEL.EXE
5104	EXCEL.EXE
5104	EXCEL.EXE
5104	EXCEL.EXE
5104	EXCEL.EXE
5104	EXCEL.EXE
5104	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 5104 wrote to memory of 1968	5104	EXCEL.EXE	splwow64.exe
PID 5104 wrote to memory of 1968	5104	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\5f8f61db2946d59289d17477069b298f13de7883e808362a13ead246738ff3f0.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5104

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1968

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:1508

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/1968-139-0x0000000000000000-mapping.dmp

Download
memory/5104-132-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/5104-133-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/5104-134-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/5104-135-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/5104-136-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/5104-137-0x00007FFA94040000-0x00007FFA94050000-memory.dmp

Filesize
64KB

Download
memory/5104-138-0x00007FFA94040000-0x00007FFA94050000-memory.dmp

Filesize
64KB

Download
memory/5104-141-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/5104-142-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/5104-143-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/5104-144-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download