f55fc342342b551128e7925dad43211ae659f95ede14674685d29522451be818

General

Target

f55fc342342b551128e7925dad43211ae659f95ede14674685d29522451be818.xls
Size

95KB
MD5

fadaeae70d00a91ed194ae32bcd0faa9
SHA1

c2f468bd40bc079ce0e52bf51ede1207e951ae09
SHA256

f55fc342342b551128e7925dad43211ae659f95ede14674685d29522451be818
SHA512

63694e2e8c9b27dbe67ce44ec84bb1dd45a89ea942440daf3f8d13316ee60cbf32da5e12016f0ea25af9fbe1c80fa90f21d8bf46bd395a997eb2cc296e158784

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	5008	4440	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4920	4440	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4872	4440	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	488	4440	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

4440 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4440 EXCEL.EXE
4440 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4440	EXCEL.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4440 wrote to memory of 5008	4440	EXCEL.EXE	regsvr32.exe
PID 4440 wrote to memory of 5008	4440	EXCEL.EXE	regsvr32.exe
PID 4440 wrote to memory of 4920	4440	EXCEL.EXE	regsvr32.exe
PID 4440 wrote to memory of 4920	4440	EXCEL.EXE	regsvr32.exe
PID 4440 wrote to memory of 4872	4440	EXCEL.EXE	regsvr32.exe
PID 4440 wrote to memory of 4872	4440	EXCEL.EXE	regsvr32.exe
PID 4440 wrote to memory of 488	4440	EXCEL.EXE	regsvr32.exe
PID 4440 wrote to memory of 488	4440	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\f55fc342342b551128e7925dad43211ae659f95ede14674685d29522451be818.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:4440

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:5008

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4920

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4872

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:488

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/488-272-0x0000000000000000-mapping.dmp

Download
memory/4440-117-0x00007FF9532C0000-0x00007FF9532D0000-memory.dmp

Filesize
64KB

Download
memory/4440-118-0x00007FF9532C0000-0x00007FF9532D0000-memory.dmp

Filesize
64KB

Download
memory/4440-119-0x00007FF9532C0000-0x00007FF9532D0000-memory.dmp

Filesize
64KB

Download
memory/4440-120-0x00007FF9532C0000-0x00007FF9532D0000-memory.dmp

Filesize
64KB

Download
memory/4440-129-0x00007FF94FA40000-0x00007FF94FA50000-memory.dmp

Filesize
64KB

Download
memory/4440-130-0x00007FF94FA40000-0x00007FF94FA50000-memory.dmp

Filesize
64KB

Download
memory/4872-271-0x0000000000000000-mapping.dmp

Download
memory/4920-270-0x0000000000000000-mapping.dmp

Download
memory/5008-269-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads