8f956c74a4237f9509caed1ed71763c8dd55b45a9ddd3577a5a081f368181d7b

General

Target

8f956c74a4237f9509caed1ed71763c8dd55b45a9ddd3577a5a081f368181d7b.xls
Size

95KB
MD5

b9d665818a3876d183899a8853182047
SHA1

7091faf178b38e1f8ec5bb4d2d67c7bf49281c13
SHA256

8f956c74a4237f9509caed1ed71763c8dd55b45a9ddd3577a5a081f368181d7b
SHA512

89908d259549320fc3df4ae7a505a94784ea3ee56eff2b80fc12dbb3c30e1bd2c33743952ecddd243f36b25aa044fada01fe7de71ff8d19b7cb9e7abe7897b59

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	2568	3480	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3592	3480	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3660	3480	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3752	3480	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 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

3480 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3480 EXCEL.EXE
3480 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3480	EXCEL.EXE
3480	EXCEL.EXE
3480	EXCEL.EXE
3480	EXCEL.EXE
3480	EXCEL.EXE
3480	EXCEL.EXE
3480	EXCEL.EXE
3480	EXCEL.EXE
3480	EXCEL.EXE
3480	EXCEL.EXE
3480	EXCEL.EXE
3480	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3480 wrote to memory of 2568	3480	EXCEL.EXE	regsvr32.exe
PID 3480 wrote to memory of 2568	3480	EXCEL.EXE	regsvr32.exe
PID 3480 wrote to memory of 3592	3480	EXCEL.EXE	regsvr32.exe
PID 3480 wrote to memory of 3592	3480	EXCEL.EXE	regsvr32.exe
PID 3480 wrote to memory of 3660	3480	EXCEL.EXE	regsvr32.exe
PID 3480 wrote to memory of 3660	3480	EXCEL.EXE	regsvr32.exe
PID 3480 wrote to memory of 3752	3480	EXCEL.EXE	regsvr32.exe
PID 3480 wrote to memory of 3752	3480	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\8f956c74a4237f9509caed1ed71763c8dd55b45a9ddd3577a5a081f368181d7b.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:3480

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:2568

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3592

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3660

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3752

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

Replay Monitor

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Downloads

memory/2568-268-0x0000000000000000-mapping.dmp

Download
memory/3480-119-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3480-118-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3480-116-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3480-128-0x00007FF84CAB0000-0x00007FF84CAC0000-memory.dmp

Filesize
64KB

Download
memory/3480-129-0x00007FF84CAB0000-0x00007FF84CAC0000-memory.dmp

Filesize
64KB

Download
memory/3480-117-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3480-308-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3480-309-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3480-310-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3480-311-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3592-269-0x0000000000000000-mapping.dmp

Download
memory/3660-270-0x0000000000000000-mapping.dmp

Download
memory/3752-271-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads