6f135fdddf732d3ae8b06a3e00edc3073503695bf7d1c165f5db96e982265bf3

General

Target

6f135fdddf732d3ae8b06a3e00edc3073503695bf7d1c165f5db96e982265bf3.xls
Size

95KB
MD5

53cdccb8915a1314cda3843e78a9acaa
SHA1

16ff127872b4625c714a4ede672a593e9938f30b
SHA256

6f135fdddf732d3ae8b06a3e00edc3073503695bf7d1c165f5db96e982265bf3
SHA512

42f9feb3e38f3aed56e02ee127cf57e43e1a1441ec567e9620130c59e8b40dbe77f6bf11398c3ed32b95fa9f8f347b19715bdee4a375bd056902d610be2c7ed5

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	4972	2692	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4344	2692	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4324	2692	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5000	2692	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\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2692 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2692 EXCEL.EXE
2692 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2692	EXCEL.EXE
2692	EXCEL.EXE
2692	EXCEL.EXE
2692	EXCEL.EXE
2692	EXCEL.EXE
2692	EXCEL.EXE
2692	EXCEL.EXE
2692	EXCEL.EXE
2692	EXCEL.EXE
2692	EXCEL.EXE
2692	EXCEL.EXE
2692	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2692 wrote to memory of 4972	2692	EXCEL.EXE	regsvr32.exe
PID 2692 wrote to memory of 4972	2692	EXCEL.EXE	regsvr32.exe
PID 2692 wrote to memory of 4344	2692	EXCEL.EXE	regsvr32.exe
PID 2692 wrote to memory of 4344	2692	EXCEL.EXE	regsvr32.exe
PID 2692 wrote to memory of 4324	2692	EXCEL.EXE	regsvr32.exe
PID 2692 wrote to memory of 4324	2692	EXCEL.EXE	regsvr32.exe
PID 2692 wrote to memory of 5000	2692	EXCEL.EXE	regsvr32.exe
PID 2692 wrote to memory of 5000	2692	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\6f135fdddf732d3ae8b06a3e00edc3073503695bf7d1c165f5db96e982265bf3.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:2692

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:4972

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4344

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4324

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:5000

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/2692-118-0x00007FFE2CD70000-0x00007FFE2CD80000-memory.dmp

Filesize
64KB

Download
memory/2692-119-0x00007FFE2CD70000-0x00007FFE2CD80000-memory.dmp

Filesize
64KB

Download
memory/2692-120-0x00007FFE2CD70000-0x00007FFE2CD80000-memory.dmp

Filesize
64KB

Download
memory/2692-121-0x00007FFE2CD70000-0x00007FFE2CD80000-memory.dmp

Filesize
64KB

Download
memory/2692-130-0x00007FFE2A060000-0x00007FFE2A070000-memory.dmp

Filesize
64KB

Download
memory/2692-131-0x00007FFE2A060000-0x00007FFE2A070000-memory.dmp

Filesize
64KB

Download
memory/4324-256-0x0000000000000000-mapping.dmp

Download
memory/4344-255-0x0000000000000000-mapping.dmp

Download
memory/4972-254-0x0000000000000000-mapping.dmp

Download
memory/5000-257-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads