dcc6409e704780116523a3e6ca35edf1399b381568d26b6d0373d1d9e00be491

General

Target

?i=1nyaiveov.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	3540	4936	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 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

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
4936	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4936	EXCEL.EXE
4936	EXCEL.EXE
4936	EXCEL.EXE
4936	EXCEL.EXE
4936	EXCEL.EXE
4936	EXCEL.EXE
4936	EXCEL.EXE
4936	EXCEL.EXE
4936	EXCEL.EXE
4936	EXCEL.EXE
4936	EXCEL.EXE
4936	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 3540	4936	EXCEL.EXE	81
PID 4936 wrote to memory of 3540	4936	EXCEL.EXE	81
PID 4936 wrote to memory of 3540	4936	EXCEL.EXE	81

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\_i=1nyaiveov.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Windows\SysWow64\regsvr32.exe
  C:\Windows\SysWow64\regsvr32.exe -s ..\xewn.dll
  2⤵
  - Process spawned unexpected child process
  PID:3540

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
85667ebb0413810d1140e2421b1dc2de

SHA1
35ffef0fe6ea61eac204cb4fe9cf845564ee75d4

SHA256
6853a00ff78781fbce924f4fc62a494e8066642ba9a21b38ca5e56f8f4a6feeb

SHA512
1946a2ab23c9ba4d9674971b79d5b793908a12989e0735a2cd3fc899b69823cd47f812c28b87e4cc067568920eeebca2d2fa0308af4ffdb71013a7d270b8545f

Download Submit
memory/4936-130-0x00007FF9BC5B0000-0x00007FF9BC5C0000-memory.dmp

Filesize
64KB

Download
memory/4936-131-0x00007FF9BC5B0000-0x00007FF9BC5C0000-memory.dmp

Filesize
64KB

Download
memory/4936-132-0x00007FF9BC5B0000-0x00007FF9BC5C0000-memory.dmp

Filesize
64KB

Download
memory/4936-133-0x00007FF9BC5B0000-0x00007FF9BC5C0000-memory.dmp

Filesize
64KB

Download
memory/4936-134-0x00007FF9BC5B0000-0x00007FF9BC5C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads