ae3819a4ba22b646c34c63e28fe700ac9766246b0b594a264dad6c88f200cc65

Analysis

max time kernel
138s
max time network
140s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
20/11/2024, 12:45

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General

Target

ae3819a4ba22b646c34c63e28fe700ac9766246b0b594a264dad6c88f200cc65.xlsm
Size

20KB
MD5

c6d9f047b33b1b6d59e18af0d33abf4e
SHA1

a0c0763daff91925dd9ddb9ccaaf551f92048043
SHA256

ae3819a4ba22b646c34c63e28fe700ac9766246b0b594a264dad6c88f200cc65
SHA512

0e1db2f266a86217b1261a65e188f4459844badeaece4212af587f3c3379a384e769aadb7a4339c306d02a6ff4a1b319b3d0753f437e24baaca6b6071aa5ea74
SSDEEP

384:yHM0Vb1GNjDo4CGzPd6ZIwA1hKb5CzgObff9kC+xbX7qE7h:H0INfo4FLH2CBn9kC+xbLq+

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://canismallorca.es/wp-admin/OTyeYrx9C9BvYvVb3/

xlm40.dropper

http://capslock.co.za/wp-includes/LMngUUTuanBofr5zK/

xlm40.dropper

http://www.cafe-kwebbel.nl/layouts/3Wkev/

xlm40.dropper

http://bkps.ac.th/b91-std63/Ixv52m8gu4aaUiyb/

xlm40.dropper

http://borbajardinagem.com.br/erros/vlB3f6XpsZG/

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	1676	2636	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	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.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
2636	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2636	EXCEL.EXE
2636	EXCEL.EXE
2636	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 1676	2636	EXCEL.EXE	31
PID 2636 wrote to memory of 1676	2636	EXCEL.EXE	31
PID 2636 wrote to memory of 1676	2636	EXCEL.EXE	31
PID 2636 wrote to memory of 1676	2636	EXCEL.EXE	31
PID 2636 wrote to memory of 1676	2636	EXCEL.EXE	31
PID 2636 wrote to memory of 1676	2636	EXCEL.EXE	31
PID 2636 wrote to memory of 1676	2636	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\ae3819a4ba22b646c34c63e28fe700ac9766246b0b594a264dad6c88f200cc65.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:2636
- 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:1676

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
3KB

MD5
cc666088a917dd7f5da8b6689069aec0

SHA1
f688de634ccd20939a522391abb5049483e726bd

SHA256
332d102987273318f13e7fc89a043613c6dd5dd7eb7d21033a2ab73dd438a405

SHA512
77a15aebeb10d355e3723fdebd2ea59a09a60d54f09ab9a6f06c52dbfa3bea0965ff49b7a1c2e6f4ff94f3fe903e6301188de2f80801a8a978c8c09b3356c8dc

Download Submit
memory/2636-1-0x00000000720DD000-0x00000000720E8000-memory.dmp

Filesize
44KB

Download
memory/2636-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2636-7-0x00000000720DD000-0x00000000720E8000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads