a2ce2b1e64c5fe978aeb033cab952bbebcd59e046f93350aadcd2cc84d67014d

Analysis

max time kernel
61s
max time network
138s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 18:10

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General

Target

a2ce2b1e64c5fe978aeb033cab952bbebcd59e046f93350aadcd2cc84d67014d.xlsm
Size

20KB
MD5

481287127a9efe0f676dd35537546a31
SHA1

fdd8ac9fb90cadda552165decee8f32c4ae9678d
SHA256

a2ce2b1e64c5fe978aeb033cab952bbebcd59e046f93350aadcd2cc84d67014d
SHA512

19115c6bd5b6264930c7d83a340dabe4ce9d60a96ab4155a8a0559808ebcf768a5ed50ba2f59a5dddde7c0b0a66f89ba8e04a3bbc27787d7b0f5b986b864de06
SSDEEP

384:WKAVb1GNjYTo4CGzPd6ZIwL0AOKb5CzgObff9kC+xbX7jvIv:WKYINmo4FLyCBn9kC+xbLA

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://www.manchesterslt.co.uk/a-to-z-of-slt/9wq2ESVcG/

xlm40.dropper

http://festival.artdialog.ch/contact/RGhcwH4DRBM/

xlm40.dropper

http://bramynapilota.com.pl/wp-admin/NHk/

xlm40.dropper

http://brwconsultoria.com.br/img/Vl0i9o/

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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	3052	2104	regsvr32.exe	29

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2104	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2104	EXCEL.EXE
2104	EXCEL.EXE
2104	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 3052	2104	EXCEL.EXE	31
PID 2104 wrote to memory of 3052	2104	EXCEL.EXE	31
PID 2104 wrote to memory of 3052	2104	EXCEL.EXE	31
PID 2104 wrote to memory of 3052	2104	EXCEL.EXE	31
PID 2104 wrote to memory of 3052	2104	EXCEL.EXE	31
PID 2104 wrote to memory of 3052	2104	EXCEL.EXE	31
PID 2104 wrote to memory of 3052	2104	EXCEL.EXE	31

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\a2ce2b1e64c5fe978aeb033cab952bbebcd59e046f93350aadcd2cc84d67014d.xlsm
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\SysWow64\regsvr32.exe
  C:\Windows\SysWow64\regsvr32.exe -s ..\kytk.dll
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:3052

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\kytk.dll

Filesize
1KB

MD5
1326c16a18441423830933fbb3a6a290

SHA1
d62b5f0ec9ae7a82209938c347311519b9fc1084

SHA256
3bb40456027c77d05b991e4686f10e51739a6ebdca3e33ec5edcd1e2c28b34cf

SHA512
2b9076d43ccc836c89bcd4cc1946008b1d0268edf432d37659960f4ffb9836ca65e638b61305f374ba71b2fa21ac3210482c0e6287288e75bcd44d4fbeb3e528

Download Submit
memory/2104-1-0x000000007220D000-0x0000000072218000-memory.dmp

Filesize
44KB

Download
memory/2104-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2104-30-0x000000007220D000-0x0000000072218000-memory.dmp

Filesize
44KB

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads