df27f071b44fa399503c4e9b51b6add31ee33f78e6eb29f264546966dbd051e1

General

Target

df27f071b44fa399503c4e9b51b6add31ee33f78e6eb29f264546966dbd051e1.xlsm
Size

20KB
MD5

73b4735d3fbc1b755b19fc31c31d6075
SHA1

94d6b408cbbd20a827a949b01c704f281e16bc70
SHA256

df27f071b44fa399503c4e9b51b6add31ee33f78e6eb29f264546966dbd051e1
SHA512

4476e6455c8c65d82eb6d4f511d6d670f40bd6b3ec20881dc6a744183c1bfd0dca40b65f96c3d7e37c9033bfd42741c7ef9cd7b0836f94df05ce057bba44cc45
SSDEEP

384:q/Vb1GNjU5o4CGzPd6ZIw8R3Kb5CzgObff9kC+xbX7zJBq1:qtINAo4FLkCBn9kC+xbLzJy

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://antaoco.com/wp-admin/5WaIjOuHnUj/

xlm40.dropper

http://amakpost.com/assets/IaeePiSroWtpfZ8uURa/

xlm40.dropper

http://anat-bar.co.il/cgi-bin/UNS6bRMcF4pOTf/

xlm40.dropper

http://andrewpharma.com/wp-includes/WqgKtKrYJM/

xlm40.dropper

http://amkltd.co.uk/amk/IPuhx/

xlm40.dropper

http://gees.com.pl/geessw/2YmxITo6/

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	3976	2364	regsvr32.exe	82

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

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

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

pid	Process
2364	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2364	EXCEL.EXE
2364	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 3976	2364	EXCEL.EXE	94
PID 2364 wrote to memory of 3976	2364	EXCEL.EXE	94
PID 2364 wrote to memory of 3976	2364	EXCEL.EXE	94

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\df27f071b44fa399503c4e9b51b6add31ee33f78e6eb29f264546966dbd051e1.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:2364
- 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:3976

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
1e6aee773daf8bef9a85a7e0b8275548

SHA1
0fbd0e56d0c02d12ee22721bb9f3a2bbe6be7026

SHA256
1e30717e4256d0119ae1532deea5832fa4f5e2aaa9f7402f42a6dbb287ab34bd

SHA512
09196cab84e7b6c02240e7681f11fd94465f63e99b5f6339ff3feecd7d90fdc9c880f3c6a9c9afd504ff14c527d2994199ba111d6db5cdce208e1d2d5dbe4885

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

Filesize
106KB

MD5
f148a6cfb5030f7ee526652aea4fe549

SHA1
c72da5f478ecc29db7ebe739859187f24fa4b0f8

SHA256
28243c8da5e1441d3e033e67f3c031b43a52974f473cdbf4e7838de241843cac

SHA512
44f09a4dc975e9c6c7bd0e4164921b38440a70a5fe3f7907309ccdc721cd977b78c0f770f008eb27015af3edcb2a4d5fc6c6a7f02596cd25e977b140d080163f

Download Submit
memory/2364-9-0x00007FF9FCA50000-0x00007FF9FCA60000-memory.dmp

Filesize
64KB

Download
memory/2364-11-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-2-0x00007FF9FED50000-0x00007FF9FED60000-memory.dmp

Filesize
64KB

Download
memory/2364-1-0x00007FFA3ED6D000-0x00007FFA3ED6E000-memory.dmp

Filesize
4KB

Download
memory/2364-6-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-7-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-8-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-10-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-0-0x00007FF9FED50000-0x00007FF9FED60000-memory.dmp

Filesize
64KB

Download
memory/2364-5-0x00007FF9FED50000-0x00007FF9FED60000-memory.dmp

Filesize
64KB

Download
memory/2364-12-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-13-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-15-0x00007FF9FCA50000-0x00007FF9FCA60000-memory.dmp

Filesize
64KB

Download
memory/2364-14-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-41-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-42-0x00007FFA3ED6D000-0x00007FFA3ED6E000-memory.dmp

Filesize
4KB

Download
memory/2364-43-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-4-0x00007FF9FED50000-0x00007FF9FED60000-memory.dmp

Filesize
64KB

Download
memory/2364-49-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-3-0x00007FF9FED50000-0x00007FF9FED60000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads