d81571511b8abc709286e7f86dabb9a98438ba8495007906f1368835f9a37781

Analysis

max time kernel
145s
max time network
146s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
25-01-2023 11:25

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General

Target

All-2023-01-06.xlsm
Size

15KB
MD5

1a16f47638d69b65e70ab89f70ea8785
SHA1

affd2306cd80ff338d92709df01e14b82e970ef8
SHA256

d81571511b8abc709286e7f86dabb9a98438ba8495007906f1368835f9a37781
SHA512

9cb131fcd9c1861bdf67a91ddff95c7871cbe4a58985f3b4b7cbbbeea6c0fd706a121c27d7c08d3921b28499dc5f9c4ad922b1ed50b77d93a962dfc632b708c1
SSDEEP

384:nV/1k1BQGLZUjqyyEQXmJGFtkXmR5VjV/FxmQ/VcHM/FRSR/WkR:nV/1kswU/yEQ2JGFtk2R5VjV/FYQ/VcN

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

2404 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2404 EXCEL.EXE
2404 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2404	EXCEL.EXE
2404	EXCEL.EXE
2404	EXCEL.EXE
2404	EXCEL.EXE
2404	EXCEL.EXE
2404	EXCEL.EXE
2404	EXCEL.EXE
2404	EXCEL.EXE
2404	EXCEL.EXE
2404	EXCEL.EXE
2404	EXCEL.EXE
2404	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2404 wrote to memory of 4640	2404	EXCEL.EXE	splwow64.exe
PID 2404 wrote to memory of 4640	2404	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\All-2023-01-06.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2404

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:4640

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/2404-312-0x00007FFED1BF0000-0x00007FFED1C00000-memory.dmp

Filesize
64KB

Download
memory/2404-117-0x00007FFED1BF0000-0x00007FFED1C00000-memory.dmp

Filesize
64KB

Download
memory/2404-118-0x00007FFED1BF0000-0x00007FFED1C00000-memory.dmp

Filesize
64KB

Download
memory/2404-119-0x00007FFED1BF0000-0x00007FFED1C00000-memory.dmp

Filesize
64KB

Download
memory/2404-128-0x00007FFECE340000-0x00007FFECE350000-memory.dmp

Filesize
64KB

Download
memory/2404-129-0x00007FFECE340000-0x00007FFECE350000-memory.dmp

Filesize
64KB

Download
memory/2404-273-0x0000017989659000-0x000001798965B000-memory.dmp

Filesize
8KB

Download
memory/2404-282-0x0000017989659000-0x000001798965B000-memory.dmp

Filesize
8KB

Download
memory/2404-116-0x00007FFED1BF0000-0x00007FFED1C00000-memory.dmp

Filesize
64KB

Download
memory/2404-313-0x00007FFED1BF0000-0x00007FFED1C00000-memory.dmp

Filesize
64KB

Download
memory/2404-314-0x00007FFED1BF0000-0x00007FFED1C00000-memory.dmp

Filesize
64KB

Download
memory/2404-315-0x00007FFED1BF0000-0x00007FFED1C00000-memory.dmp

Filesize
64KB

Download
memory/4640-272-0x0000000000000000-mapping.dmp

Download