90cb7a3b8e8a9fc2afc075792bb6ae5d9e9b7664abef08d57c7cf1bca9acfb53

Analysis

max time kernel
112s
max time network
168s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2022 22:48

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General

Target

90cb7a3b8e8a9fc2afc075792bb6ae5d9e9b7664abef08d57c7cf1bca9acfb53.xls
Size

190KB
MD5

6d8edb1a411cdd54533a88fde463fa8b
SHA1

dbfa4736d48f3f33fa020a1acdebdf5b0c027cd7
SHA256

90cb7a3b8e8a9fc2afc075792bb6ae5d9e9b7664abef08d57c7cf1bca9acfb53
SHA512

2026b2886ffcc8c166e71689325b8871b52b9aa333c977c00b1841df2e3cf1849690257fb6dc092b7abbd245974905bd595979d514addbe1b070a52238a51ab1
SSDEEP

3072:2F1gxv7yZmspH7+cclKisQ6NqTBun5oXJ5F7w/l0HeUh3aq/PkyzN:e1gxv7yZmspH7+cclKisQ6NqTBun5oSL

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

4904 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4904	EXCEL.EXE
4904	EXCEL.EXE
4904	EXCEL.EXE
4904	EXCEL.EXE
4904	EXCEL.EXE
4904	EXCEL.EXE
4904	EXCEL.EXE
4904	EXCEL.EXE
4904	EXCEL.EXE
4904	EXCEL.EXE
4904	EXCEL.EXE
4904	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4904 wrote to memory of 1820	4904	EXCEL.EXE	splwow64.exe
PID 4904 wrote to memory of 1820	4904	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\90cb7a3b8e8a9fc2afc075792bb6ae5d9e9b7664abef08d57c7cf1bca9acfb53.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4904

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1820

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:1988

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/1820-139-0x0000000000000000-mapping.dmp

Download
memory/4904-132-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4904-133-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4904-134-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4904-135-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4904-136-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4904-137-0x00007FFB61FD0000-0x00007FFB61FE0000-memory.dmp

Filesize
64KB

Download
memory/4904-138-0x00007FFB61FD0000-0x00007FFB61FE0000-memory.dmp

Filesize
64KB

Download
memory/4904-141-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4904-142-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4904-143-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4904-144-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download