31d290b0c14af1afc835c00c1861dfb4f5f0142329646c3164f38199c582a901

General

Target

31d290b0c14af1afc835c00c1861dfb4f5f0142329646c3164f38199c582a901.xls
Size

95KB
MD5

b7fe75b5e21da13d821887c588e72ca9
SHA1

8a52f0a2e524a55c9be9627726624d4551db29db
SHA256

31d290b0c14af1afc835c00c1861dfb4f5f0142329646c3164f38199c582a901
SHA512

85a1bd451116c42829741e8f3abbb79f7824767754945f75c1b371198ca049d00cd928c23128c84a65c94cf004ee99ff98f18e38a6e69558146e0987cc4a628e

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://edoraseguros.com.br/cgi-bin/jQNq9wlH1GXU/

xlm40.dropper

http://earthmach.co.za/libraries/tWkZh9YrXbTd6IeX/

xlm40.dropper

http://finvest.rs/wp-admin/Hr9nVNTIHgw59S/

xlm40.dropper

http://efverstedt.se/5jjaV/w7fLEHJ20xn0qD/

Signatures

Process spawned unexpected child process 4 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.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	3712	4296	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4864	4296	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3624	4296	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4500	4296	regsvr32.exe	EXCEL.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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

4296 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4296 EXCEL.EXE
4296 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4296	EXCEL.EXE
4296	EXCEL.EXE
4296	EXCEL.EXE
4296	EXCEL.EXE
4296	EXCEL.EXE
4296	EXCEL.EXE
4296	EXCEL.EXE
4296	EXCEL.EXE
4296	EXCEL.EXE
4296	EXCEL.EXE
4296	EXCEL.EXE
4296	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4296 wrote to memory of 3712	4296	EXCEL.EXE	regsvr32.exe
PID 4296 wrote to memory of 3712	4296	EXCEL.EXE	regsvr32.exe
PID 4296 wrote to memory of 4864	4296	EXCEL.EXE	regsvr32.exe
PID 4296 wrote to memory of 4864	4296	EXCEL.EXE	regsvr32.exe
PID 4296 wrote to memory of 3624	4296	EXCEL.EXE	regsvr32.exe
PID 4296 wrote to memory of 3624	4296	EXCEL.EXE	regsvr32.exe
PID 4296 wrote to memory of 4500	4296	EXCEL.EXE	regsvr32.exe
PID 4296 wrote to memory of 4500	4296	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\31d290b0c14af1afc835c00c1861dfb4f5f0142329646c3164f38199c582a901.xls"
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:4296

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3712

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4864

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3624

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4500

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/3624-252-0x0000000000000000-mapping.dmp

Download
memory/3712-250-0x0000000000000000-mapping.dmp

Download
memory/4296-114-0x00007FFC9F460000-0x00007FFC9F470000-memory.dmp

Filesize
64KB

Download
memory/4296-115-0x00007FFC9F460000-0x00007FFC9F470000-memory.dmp

Filesize
64KB

Download
memory/4296-116-0x00007FFC9F460000-0x00007FFC9F470000-memory.dmp

Filesize
64KB

Download
memory/4296-117-0x00007FFC9F460000-0x00007FFC9F470000-memory.dmp

Filesize
64KB

Download
memory/4296-126-0x00007FFC9C910000-0x00007FFC9C920000-memory.dmp

Filesize
64KB

Download
memory/4296-127-0x00007FFC9C910000-0x00007FFC9C920000-memory.dmp

Filesize
64KB

Download
memory/4500-253-0x0000000000000000-mapping.dmp

Download
memory/4864-251-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads