4adcdc5c8239251f47bde6066108d2f2b6d1bd9141ef7c1c8b1ce7a0ee7d3e89

General

Target

4adcdc5c8239251f47bde6066108d2f2b6d1bd9141ef7c1c8b1ce7a0ee7d3e89.xls
Size

95KB
MD5

77612201de59d62d2bef2a5f5a44ccb6
SHA1

6efdec52d7d62bff0acb13106b6cadd487548e54
SHA256

4adcdc5c8239251f47bde6066108d2f2b6d1bd9141ef7c1c8b1ce7a0ee7d3e89
SHA512

7fdd906d2b0c870336f22120efff0e793ea9b331f9bccbe6c91c5b5fb3116fb7beba0f9f1b24853c939463333c4ced9539d12fbcafc96a681e8496ffed5169cd

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	4416	3904	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3192	3904	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3400	3904	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4936	3904	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

3904 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3904 EXCEL.EXE
3904 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3904	EXCEL.EXE
3904	EXCEL.EXE
3904	EXCEL.EXE
3904	EXCEL.EXE
3904	EXCEL.EXE
3904	EXCEL.EXE
3904	EXCEL.EXE
3904	EXCEL.EXE
3904	EXCEL.EXE
3904	EXCEL.EXE
3904	EXCEL.EXE
3904	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3904 wrote to memory of 4416	3904	EXCEL.EXE	regsvr32.exe
PID 3904 wrote to memory of 4416	3904	EXCEL.EXE	regsvr32.exe
PID 3904 wrote to memory of 3192	3904	EXCEL.EXE	regsvr32.exe
PID 3904 wrote to memory of 3192	3904	EXCEL.EXE	regsvr32.exe
PID 3904 wrote to memory of 3400	3904	EXCEL.EXE	regsvr32.exe
PID 3904 wrote to memory of 3400	3904	EXCEL.EXE	regsvr32.exe
PID 3904 wrote to memory of 4936	3904	EXCEL.EXE	regsvr32.exe
PID 3904 wrote to memory of 4936	3904	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\4adcdc5c8239251f47bde6066108d2f2b6d1bd9141ef7c1c8b1ce7a0ee7d3e89.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:3904

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:4416

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3192

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3400

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4936

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/3192-254-0x0000000000000000-mapping.dmp

Download
memory/3400-255-0x0000000000000000-mapping.dmp

Download
memory/3904-117-0x00007FF8A0F90000-0x00007FF8A0FA0000-memory.dmp

Filesize
64KB

Download
memory/3904-118-0x00007FF8A0F90000-0x00007FF8A0FA0000-memory.dmp

Filesize
64KB

Download
memory/3904-119-0x00007FF8A0F90000-0x00007FF8A0FA0000-memory.dmp

Filesize
64KB

Download
memory/3904-120-0x00007FF8A0F90000-0x00007FF8A0FA0000-memory.dmp

Filesize
64KB

Download
memory/3904-129-0x00007FF89DBB0000-0x00007FF89DBC0000-memory.dmp

Filesize
64KB

Download
memory/3904-130-0x00007FF89DBB0000-0x00007FF89DBC0000-memory.dmp

Filesize
64KB

Download
memory/4416-253-0x0000000000000000-mapping.dmp

Download
memory/4936-256-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads