64d92f79a2d87571d428b7b19ef4f5c1680c24c8952a2f46b84f217cfba19766

Analysis

max time kernel
147s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220722-en
resource tags

arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system
submitted
31-07-2022 05:12

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General

Target

huhiapel.xlsm
Size

46KB
MD5

363495acb4327435709de91edaef8338
SHA1

11ea485cddc9de2db0397f02f00a564a9468f032
SHA256

64d92f79a2d87571d428b7b19ef4f5c1680c24c8952a2f46b84f217cfba19766
SHA512

1502abfa4494c69541cbaf3f00b176f04a45802b35a0818f0a46cd229a99dd675a7b8746efa946ea37efd7305c18a00eaba4a48c251d19d084fcbf4e575cf10e

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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3092	2676	regsvr32.exe	79

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

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

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

pid	Process
2676	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 3092	2676	EXCEL.EXE	92
PID 2676 wrote to memory of 3092	2676	EXCEL.EXE	92
PID 2676 wrote to memory of 3092	2676	EXCEL.EXE	92

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\huhiapel.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Windows\SysWow64\regsvr32.exe
  C:\Windows\SysWow64\regsvr32.exe -s ..\xewn.dll
  2⤵
  - Process spawned unexpected child process
  PID:3092

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\xewn.dll

Filesize
756KB

MD5
d5154ed5f416d957776f7ff826d857c5

SHA1
1307a0383cf99c78a46cf13ff55130117b82560c

SHA256
4489cf645b0c254d71a621fa62763b82c44c607436c935895033293f18f1dcee

SHA512
5adc5176e5762b31defad06e87c375b6ea85adf7f7dfd8e2fcc23b5f3fb3fdc6bd07bd1830d742b3129cc7fe2b7613c0b44fe44f051e91ec922697d9b14ca5fa

Download Submit
memory/2676-132-0x00007FFE752F0000-0x00007FFE75300000-memory.dmp

Filesize
64KB

Download
memory/2676-133-0x00007FFE752F0000-0x00007FFE75300000-memory.dmp

Filesize
64KB

Download
memory/2676-134-0x00007FFE752F0000-0x00007FFE75300000-memory.dmp

Filesize
64KB

Download
memory/2676-135-0x00007FFE752F0000-0x00007FFE75300000-memory.dmp

Filesize
64KB

Download
memory/2676-136-0x00007FFE752F0000-0x00007FFE75300000-memory.dmp

Filesize
64KB

Download
memory/2676-137-0x00007FFE72C80000-0x00007FFE72C90000-memory.dmp

Filesize
64KB

Download
memory/2676-138-0x00007FFE72C80000-0x00007FFE72C90000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads