d57cf053c810bf4062067204fd9fd4acd5c02d59047a2b6ee2b99d6a3bff2fef

General

Target

d57cf053c810bf4062067204fd9fd4acd5c02d59047a2b6ee2b99d6a3bff2fef.xls
Size

95KB
MD5

e18e960c0832525e8a95b51aad987941
SHA1

13444ca3a91efe755269eef3b9634ade0538fd50
SHA256

d57cf053c810bf4062067204fd9fd4acd5c02d59047a2b6ee2b99d6a3bff2fef
SHA512

da00d0ff0f25102f5ede64bd015a7e243b612e681e1848c3982de0e4f764bc93cf1efe7ea9dc838f46f9983ba67635c06c3d3951c023e19826a6a1007694897c

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	4968	3996	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4900	3996	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4896	3996	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4852	3996	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3996 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3996	EXCEL.EXE
3996	EXCEL.EXE
3996	EXCEL.EXE
3996	EXCEL.EXE
3996	EXCEL.EXE
3996	EXCEL.EXE
3996	EXCEL.EXE
3996	EXCEL.EXE
3996	EXCEL.EXE
3996	EXCEL.EXE
3996	EXCEL.EXE
3996	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3996 wrote to memory of 4968	3996	EXCEL.EXE	regsvr32.exe
PID 3996 wrote to memory of 4968	3996	EXCEL.EXE	regsvr32.exe
PID 3996 wrote to memory of 4900	3996	EXCEL.EXE	regsvr32.exe
PID 3996 wrote to memory of 4900	3996	EXCEL.EXE	regsvr32.exe
PID 3996 wrote to memory of 4896	3996	EXCEL.EXE	regsvr32.exe
PID 3996 wrote to memory of 4896	3996	EXCEL.EXE	regsvr32.exe
PID 3996 wrote to memory of 4852	3996	EXCEL.EXE	regsvr32.exe
PID 3996 wrote to memory of 4852	3996	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\d57cf053c810bf4062067204fd9fd4acd5c02d59047a2b6ee2b99d6a3bff2fef.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3996

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:4968

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4900

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4896

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4852

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/3996-114-0x00007FFF5B630000-0x00007FFF5B640000-memory.dmp

Filesize
64KB

Download
memory/3996-115-0x00007FFF5B630000-0x00007FFF5B640000-memory.dmp

Filesize
64KB

Download
memory/3996-116-0x00007FFF5B630000-0x00007FFF5B640000-memory.dmp

Filesize
64KB

Download
memory/3996-117-0x00007FFF5B630000-0x00007FFF5B640000-memory.dmp

Filesize
64KB

Download
memory/3996-126-0x00007FFF57AC0000-0x00007FFF57AD0000-memory.dmp

Filesize
64KB

Download
memory/3996-127-0x00007FFF57AC0000-0x00007FFF57AD0000-memory.dmp

Filesize
64KB

Download
memory/4852-274-0x0000000000000000-mapping.dmp

Download
memory/4896-273-0x0000000000000000-mapping.dmp

Download
memory/4900-272-0x0000000000000000-mapping.dmp

Download
memory/4968-271-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads