5df125e34d80cb2d69bf1decda461cb7b8663c4a739050ca3a1a0a8b06c0a2d1

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
20/11/2024, 05:37

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General

Target

5df125e34d80cb2d69bf1decda461cb7b8663c4a739050ca3a1a0a8b06c0a2d1.xlsm
Size

20KB
MD5

ec54c5a515df08c95080df4bd69b8b47
SHA1

f6895f5c64dff0303e27fdebfcc93b6f18ae68aa
SHA256

5df125e34d80cb2d69bf1decda461cb7b8663c4a739050ca3a1a0a8b06c0a2d1
SHA512

c4d29545642e952f012e0d17747ac95e961bed0ecccf58637222c9059ea760ebb6a4d43d3837265572cb3ad33b4445bf28f662e5c9606c4b0579643845eb3dcc
SSDEEP

384:0HTyVb1GNjyo4CGzPd6ZIwGdKb5CzgObff9kC+xbX7zUSA:guIN+o4FLYCBn9kC+xbLzK

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://osmani.atwebpages.com/wp-content/Ynwrr/

xlm40.dropper

https://50-50aravidis.gr/thesi/wmL/

xlm40.dropper

https://amplamaisbeneficios.com.br/contratos/MWnnZG/

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	2820	2484	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
2484	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2484	EXCEL.EXE
2484	EXCEL.EXE
2484	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 2820	2484	EXCEL.EXE	31
PID 2484 wrote to memory of 2820	2484	EXCEL.EXE	31
PID 2484 wrote to memory of 2820	2484	EXCEL.EXE	31
PID 2484 wrote to memory of 2820	2484	EXCEL.EXE	31
PID 2484 wrote to memory of 2820	2484	EXCEL.EXE	31
PID 2484 wrote to memory of 2820	2484	EXCEL.EXE	31
PID 2484 wrote to memory of 2820	2484	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\5df125e34d80cb2d69bf1decda461cb7b8663c4a739050ca3a1a0a8b06c0a2d1.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:2484
- 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:2820

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/2484-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2484-1-0x000000007282D000-0x0000000072838000-memory.dmp

Filesize
44KB

Download
memory/2484-20-0x000000007282D000-0x0000000072838000-memory.dmp

Filesize
44KB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads