859f67fca280b2bfed06e979f96c4dc5bd15df66894f412cc12a651ed97f2511

General

Target

859f67fca280b2bfed06e979f96c4dc5bd15df66894f412cc12a651ed97f2511.xlsm
Size

20KB
MD5

12dd40b132d2fc10cd0e846ab849eba8
SHA1

fa8c82c07a0756e33fde8846e6344f8647b60fb3
SHA256

859f67fca280b2bfed06e979f96c4dc5bd15df66894f412cc12a651ed97f2511
SHA512

c2393bde875ead45b191de79f4df354dd71a6082be36fda8b1bf9f363b0e85feee20320e615db17f3d054184eda07c7f0e6ac8418e43606ae03526afbd5856c2
SSDEEP

384:yKAVb1GNjYTo4CGzPd6ZIwL0AOKb5CzgObff9kC+xbX7jvIv:yKYINmo4FLyCBn9kC+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.

Processes:

regsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3468	2852	regsvr32.exe	EXCEL.EXE

System Location Discovery: System Language Discovery 1 TTPs 1 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

Processes:

regsvr32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

pid process

2852 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2852 EXCEL.EXE
2852 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2852	EXCEL.EXE
2852	EXCEL.EXE
2852	EXCEL.EXE
2852	EXCEL.EXE
2852	EXCEL.EXE
2852	EXCEL.EXE
2852	EXCEL.EXE
2852	EXCEL.EXE
2852	EXCEL.EXE
2852	EXCEL.EXE
2852	EXCEL.EXE
2852	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2852 wrote to memory of 3468	2852	EXCEL.EXE	regsvr32.exe
PID 2852 wrote to memory of 3468	2852	EXCEL.EXE	regsvr32.exe
PID 2852 wrote to memory of 3468	2852	EXCEL.EXE	regsvr32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\859f67fca280b2bfed06e979f96c4dc5bd15df66894f412cc12a651ed97f2511.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2852
- 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:3468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
3KB

MD5
733d634acb969d5ed9fda0398db50f39

SHA1
44988953dd107fb2b0b3105d5f44ad46efa18aa5

SHA256
bc73e8670215dfc8445b56b90323ff5df9dda479bd2d0040e87c781db8f392a5

SHA512
2ca8e31964f041d288641a153aea5e453e2970b1124f3ab5fb496498f13fb20d979626cf1194473e581efd49d370359cf5e9222772957f6e33b77f9a0a1dc114

Download Submit
C:\Users\Admin\kytk.dll

Filesize
1KB

MD5
1326c16a18441423830933fbb3a6a290

SHA1
d62b5f0ec9ae7a82209938c347311519b9fc1084

SHA256
3bb40456027c77d05b991e4686f10e51739a6ebdca3e33ec5edcd1e2c28b34cf

SHA512
2b9076d43ccc836c89bcd4cc1946008b1d0268edf432d37659960f4ffb9836ca65e638b61305f374ba71b2fa21ac3210482c0e6287288e75bcd44d4fbeb3e528

Download Submit
memory/2852-12-0x00007FF9B8A20000-0x00007FF9B8A30000-memory.dmp

Filesize
64KB

Download
memory/2852-9-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-19-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-18-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-11-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-1-0x00007FF9FAD0D000-0x00007FF9FAD0E000-memory.dmp

Filesize
4KB

Download
memory/2852-10-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-6-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-5-0x00007FF9BACF0000-0x00007FF9BAD00000-memory.dmp

Filesize
64KB

Download
memory/2852-13-0x00007FF9B8A20000-0x00007FF9B8A30000-memory.dmp

Filesize
64KB

Download
memory/2852-15-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-14-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-0-0x00007FF9BACF0000-0x00007FF9BAD00000-memory.dmp

Filesize
64KB

Download
memory/2852-7-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-8-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-16-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-4-0x00007FF9BACF0000-0x00007FF9BAD00000-memory.dmp

Filesize
64KB

Download
memory/2852-3-0x00007FF9BACF0000-0x00007FF9BAD00000-memory.dmp

Filesize
64KB

Download
memory/2852-20-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-2-0x00007FF9BACF0000-0x00007FF9BAD00000-memory.dmp

Filesize
64KB

Download
memory/2852-49-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-50-0x00007FF9FAD0D000-0x00007FF9FAD0E000-memory.dmp

Filesize
4KB

Download
memory/2852-51-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-52-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-56-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download
memory/2852-17-0x00007FF9FAC70000-0x00007FF9FAE65000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads