816139a521f5f7194347aea048e100b8893fa8ce7d6a86910a72bb190425e553

Analysis

max time kernel
153s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2023 07:17

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General

Target

RLP1964598032xlsm.xlsm
Size

46KB
MD5

8d9e59e5063fe4fdc5eb1f7e4f242405
SHA1

c767e1544bbd7ea7c33d7d8034ef266c8d9f01a6
SHA256

816139a521f5f7194347aea048e100b8893fa8ce7d6a86910a72bb190425e553
SHA512

dacde4954db52f6dd220cc959e2434d88d9be58d517e4daeda68be650516caf81e64fa6b69e09a4ce7e1d03cf2021a470c214e8356d9671d6ee300104d24b40f
SSDEEP

768:QmBlntZhEI2YmxNskmoKjBvK3HqK88F/G6YzATUfJnXYS6oRM:hBlntTEvDLmXi3JvG6YzATOJnXYSXRM

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://eles-tech.com/css/KzMysMqFMs/

xlm40.dropper

http://gonorthhalifax.com/wp-content/yTmYyLbTKZV2czsUO/

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	836	2944	regsvr32.exe	EXCEL.EXE

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2944 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2944 EXCEL.EXE
2944 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2944	EXCEL.EXE
2944	EXCEL.EXE
2944	EXCEL.EXE
2944	EXCEL.EXE
2944	EXCEL.EXE
2944	EXCEL.EXE
2944	EXCEL.EXE
2944	EXCEL.EXE
2944	EXCEL.EXE
2944	EXCEL.EXE
2944	EXCEL.EXE
2944	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2944 wrote to memory of 836	2944	EXCEL.EXE	regsvr32.exe
PID 2944 wrote to memory of 836	2944	EXCEL.EXE	regsvr32.exe
PID 2944 wrote to memory of 836	2944	EXCEL.EXE	regsvr32.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\RLP1964598032xlsm.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:2944

C:\Windows\SysWow64\regsvr32.exe
C:\Windows\SysWow64\regsvr32.exe -s ..\xewn.dll
2⤵
- Process spawned unexpected child process
PID:836

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

C:\Users\Admin\xewn.dll
Filesize
1.2MB

MD5
a0ceb214519370f10ef796e4e9d1aeaa

SHA1
7b8d9a72a9cbe2145c30785bbd7791edc4603d83

SHA256
cf7d36aec9644e4dc126ff5b136354cd2ef3b6abf27dfbce84f3ecbdf48fe8ea

SHA512
573c239fb7c50fe22bbd7c169c224e68453dc60d4690fd02cc2f9d8ee43a4cce5f8c59ff6e3c3851ffdd97d141457dee10d082f3a2dc1eaf73ac64095a2945d5

Download Submit
memory/2944-133-0x00007FFE184B0000-0x00007FFE184C0000-memory.dmp

Filesize
64KB

Download
memory/2944-134-0x00007FFE184B0000-0x00007FFE184C0000-memory.dmp

Filesize
64KB

Download
memory/2944-135-0x00007FFE184B0000-0x00007FFE184C0000-memory.dmp

Filesize
64KB

Download
memory/2944-136-0x00007FFE184B0000-0x00007FFE184C0000-memory.dmp

Filesize
64KB

Download
memory/2944-137-0x00007FFE184B0000-0x00007FFE184C0000-memory.dmp

Filesize
64KB

Download
memory/2944-138-0x00007FFE162A0000-0x00007FFE162B0000-memory.dmp

Filesize
64KB

Download
memory/2944-139-0x00007FFE162A0000-0x00007FFE162B0000-memory.dmp

Filesize
64KB

Download