11a9d20b2be97f4170b655c3ef2f727174a6b46a28ac94182b122adc39220c5e

Analysis

max time kernel
129s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2022 02:57

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General

Target

ͬļ/3.¼2.0 Ŀ滮ֱ.xls
Size

102KB
MD5

d6fe0db1d65093d48834a37c23f1b2ef
SHA1

196e92930983bc27b62a8c125b02632d1c506ee4
SHA256

178c26c65f02c12dcd58091fe8f11fb94d6910cf8ca0c174c44d7abdb60cb402
SHA512

85ee0cb4181f96df8c6953b42459379e23f20d23ca51d346a7b1095664a455d94375003981c4360ea2fbd853aa00f40dbc846f9c5da0780b669e1d67a21a3037
SSDEEP

3072:dtA1gxv7yZmspH7+cclKisbqb+xTENDi0Wxqg7yXpFrSMh+56d7:I1gxv7yZmspH7+cclKisbqb+xTENDi0n

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

4968 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4968	EXCEL.EXE
4968	EXCEL.EXE
4968	EXCEL.EXE
4968	EXCEL.EXE
4968	EXCEL.EXE
4968	EXCEL.EXE
4968	EXCEL.EXE
4968	EXCEL.EXE
4968	EXCEL.EXE
4968	EXCEL.EXE
4968	EXCEL.EXE
4968	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4968 wrote to memory of 4308	4968	EXCEL.EXE	splwow64.exe
PID 4968 wrote to memory of 4308	4968	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\ͬļ\3.¼2.0 Ŀ滮ֱ.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4968

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:4308

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:4280

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/4308-139-0x0000000000000000-mapping.dmp

Download
memory/4968-132-0x00007FF975EB0000-0x00007FF975EC0000-memory.dmp

Filesize
64KB

Download
memory/4968-133-0x00007FF975EB0000-0x00007FF975EC0000-memory.dmp

Filesize
64KB

Download
memory/4968-134-0x00007FF975EB0000-0x00007FF975EC0000-memory.dmp

Filesize
64KB

Download
memory/4968-135-0x00007FF975EB0000-0x00007FF975EC0000-memory.dmp

Filesize
64KB

Download
memory/4968-136-0x00007FF975EB0000-0x00007FF975EC0000-memory.dmp

Filesize
64KB

Download
memory/4968-137-0x00007FF973C90000-0x00007FF973CA0000-memory.dmp

Filesize
64KB

Download
memory/4968-138-0x00007FF973C90000-0x00007FF973CA0000-memory.dmp

Filesize
64KB

Download
memory/4968-141-0x00007FF975EB0000-0x00007FF975EC0000-memory.dmp

Filesize
64KB

Download
memory/4968-142-0x00007FF975EB0000-0x00007FF975EC0000-memory.dmp

Filesize
64KB

Download
memory/4968-143-0x00007FF975EB0000-0x00007FF975EC0000-memory.dmp

Filesize
64KB

Download
memory/4968-144-0x00007FF975EB0000-0x00007FF975EC0000-memory.dmp

Filesize
64KB

Download