dcc6409e704780116523a3e6ca35edf1399b381568d26b6d0373d1d9e00be491

General

Target

jaommfyz.xlsm
Size

46KB
MD5

969869a41c8f52fc0853eaaba007be0f
SHA1

7d1c58a56647a9f3ede204d60fa0e6813d1ad8d1
SHA256

dcc6409e704780116523a3e6ca35edf1399b381568d26b6d0373d1d9e00be491
SHA512

c4a1a7ff06d4b59ed39640ca213bc1640907b304b613e47b9fe3561cd7caf6acb4f0c9a0fe19c9bb79b86dcbcae51bebec1831c732396cb1294b2860bd387c86

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	3876	4528	regsvr32.exe	80

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 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

pid	Process
4528	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4528	EXCEL.EXE
4528	EXCEL.EXE
4528	EXCEL.EXE
4528	EXCEL.EXE
4528	EXCEL.EXE
4528	EXCEL.EXE
4528	EXCEL.EXE
4528	EXCEL.EXE
4528	EXCEL.EXE
4528	EXCEL.EXE
4528	EXCEL.EXE
4528	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4528 wrote to memory of 3876	4528	EXCEL.EXE	83
PID 4528 wrote to memory of 3876	4528	EXCEL.EXE	83
PID 4528 wrote to memory of 3876	4528	EXCEL.EXE	83

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\jaommfyz.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4528
- C:\Windows\SysWow64\regsvr32.exe
  C:\Windows\SysWow64\regsvr32.exe -s ..\xewn.dll
  2⤵
  - Process spawned unexpected child process
  PID:3876

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\xewn.dll

Filesize
677KB

MD5
c54e834277b53cef05b79f9f640a4309

SHA1
6fb18f8adb048b5c723aaa3f0367cd5cc0df3d0e

SHA256
3f61e9b6a3fc046b07cffc39cf4d4befba1c1c8cf7acb59434c0dd7ee3ba3e6c

SHA512
00de2545e37bbfa2e8dc2b5b692016204b8ed483284a56e237534b3a6d7820f7b4a8a638071b549b9508fbe817310b8e4d91201fdf7eaff136960f0d80b589a0

Download Submit
memory/4528-130-0x00007FFA9B690000-0x00007FFA9B6A0000-memory.dmp

Filesize
64KB

Download
memory/4528-131-0x00007FFA9B690000-0x00007FFA9B6A0000-memory.dmp

Filesize
64KB

Download
memory/4528-132-0x00007FFA9B690000-0x00007FFA9B6A0000-memory.dmp

Filesize
64KB

Download
memory/4528-133-0x00007FFA9B690000-0x00007FFA9B6A0000-memory.dmp

Filesize
64KB

Download
memory/4528-134-0x00007FFA9B690000-0x00007FFA9B6A0000-memory.dmp

Filesize
64KB

Download
memory/4528-135-0x00007FFA990C0000-0x00007FFA990D0000-memory.dmp

Filesize
64KB

Download
memory/4528-136-0x00007FFA990C0000-0x00007FFA990D0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads