01798d07d4de9a1921a9267ec9b4a64c9f04b4c4101d1b787fa327de12153653

General

Target

catalog-2048582418.xlsm
Size

81KB
MD5

b5f20259cc4d16c9608f7cc90e2df35b
SHA1

c770a08241951d06e7c900f557cfaade4268c246
SHA256

f5bfcf48c0cd34368b28b8ed027ef2c09d47133720f767633b2c1f8da3bb4b0e
SHA512

3495abe20f881b5d201e1f3c56f0728d99cf645c7d2f3f799fe0d976caddd6fc38499ef1c9ed31a8fa1dfa2917d2d81ffe83098a375587bb83729d483ff31f98
SSDEEP

1536:bhvD0tUn/dDuL7QQ64eyZJViW++poHndClu286aYbgBF+iyffn5:bVjwXQQteyZJAW++4dF286aYbgEfh

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://halle-auer20h.ru.com/lenta.html

xlm40.dropper

https://acienciaparaficarrico.com.br/drms/lenta.html

xlm40.dropper

https://deccanrestaurant.co.uk/drms/lenta.html

xlm40.dropper

https://steilppm.ac.id/drms/lenta.html

Signatures

Process spawned unexpected child process 4 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	1240	4916	rundll32.exe	29
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3656	4916	rundll32.exe	29
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5056	4916	rundll32.exe	29
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	788	4916	rundll32.exe	29

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 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

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
4916	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4916	EXCEL.EXE
4916	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4916 wrote to memory of 1240	4916	EXCEL.EXE	88
PID 4916 wrote to memory of 1240	4916	EXCEL.EXE	88
PID 4916 wrote to memory of 3656	4916	EXCEL.EXE	89
PID 4916 wrote to memory of 3656	4916	EXCEL.EXE	89
PID 4916 wrote to memory of 5056	4916	EXCEL.EXE	90
PID 4916 wrote to memory of 5056	4916	EXCEL.EXE	90
PID 4916 wrote to memory of 788	4916	EXCEL.EXE	91
PID 4916 wrote to memory of 788	4916	EXCEL.EXE	91

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\catalog-2048582418.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:4916
- C:\Windows\SYSTEM32\rundll32.exe
  rundll32 ..\xtjxjt.sdfg1,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:1240
- C:\Windows\SYSTEM32\rundll32.exe
  rundll32 ..\xtjxjt.sdfg2,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:3656
- C:\Windows\SYSTEM32\rundll32.exe
  rundll32 ..\xtjxjt.sdfg3,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:5056
- C:\Windows\SYSTEM32\rundll32.exe
  rundll32 ..\xtjxjt.sdfg4,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:788

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4916-0-0x00007FFF310D0000-0x00007FFF310E0000-memory.dmp

Filesize
64KB

Download
memory/4916-1-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-2-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-4-0x00007FFF310D0000-0x00007FFF310E0000-memory.dmp

Filesize
64KB

Download
memory/4916-3-0x00007FFF310D0000-0x00007FFF310E0000-memory.dmp

Filesize
64KB

Download
memory/4916-5-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-7-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-6-0x00007FFF310D0000-0x00007FFF310E0000-memory.dmp

Filesize
64KB

Download
memory/4916-8-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-9-0x00007FFF310D0000-0x00007FFF310E0000-memory.dmp

Filesize
64KB

Download
memory/4916-10-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-11-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-12-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-13-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-14-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-16-0x00007FFF2EF10000-0x00007FFF2EF20000-memory.dmp

Filesize
64KB

Download
memory/4916-17-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-15-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-18-0x00007FFF2EF10000-0x00007FFF2EF20000-memory.dmp

Filesize
64KB

Download
memory/4916-29-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-30-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-31-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-44-0x00007FFF310D0000-0x00007FFF310E0000-memory.dmp

Filesize
64KB

Download
memory/4916-45-0x00007FFF310D0000-0x00007FFF310E0000-memory.dmp

Filesize
64KB

Download
memory/4916-46-0x00007FFF310D0000-0x00007FFF310E0000-memory.dmp

Filesize
64KB

Download
memory/4916-47-0x00007FFF310D0000-0x00007FFF310E0000-memory.dmp

Filesize
64KB

Download
memory/4916-48-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-50-0x00007FFF71050000-0x00007FFF71245000-memory.dmp

Filesize
2.0MB

Download
memory/4916-49-0x00007FFF71050000-0x00007FFF71245000-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