331d66aefb7a02de4237782a1dc5d0955c98e22589fef96221a6bb1cbb317623

General

Target

331d66aefb7a02de4237782a1dc5d0955c98e22589fef96221a6bb1cbb317623.xls
Size

95KB
MD5

1278bdcc6562420a7a35bf3a610480fd
SHA1

4027b65d530ea1f05d46e07faecdf73d2ab35d91
SHA256

331d66aefb7a02de4237782a1dc5d0955c98e22589fef96221a6bb1cbb317623
SHA512

e4c3061930cd656edac8f495f40f3d94f4ffcff52ec4bd1cab48c1ec3e6b75f8e19a3e5ede7d7849f947e4cc981eb9d05d5c79abced3351e04909012cf740beb

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	4712	2156	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4540	2156	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5108	2156	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4484	2156	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

2156 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2156 wrote to memory of 4712	2156	EXCEL.EXE	regsvr32.exe
PID 2156 wrote to memory of 4712	2156	EXCEL.EXE	regsvr32.exe
PID 2156 wrote to memory of 4540	2156	EXCEL.EXE	regsvr32.exe
PID 2156 wrote to memory of 4540	2156	EXCEL.EXE	regsvr32.exe
PID 2156 wrote to memory of 5108	2156	EXCEL.EXE	regsvr32.exe
PID 2156 wrote to memory of 5108	2156	EXCEL.EXE	regsvr32.exe
PID 2156 wrote to memory of 4484	2156	EXCEL.EXE	regsvr32.exe
PID 2156 wrote to memory of 4484	2156	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\331d66aefb7a02de4237782a1dc5d0955c98e22589fef96221a6bb1cbb317623.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2156

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:4712

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4540

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:5108

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4484

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/2156-114-0x00007FFE528C0000-0x00007FFE528D0000-memory.dmp

Filesize
64KB

Download
memory/2156-115-0x00007FFE528C0000-0x00007FFE528D0000-memory.dmp

Filesize
64KB

Download
memory/2156-116-0x00007FFE528C0000-0x00007FFE528D0000-memory.dmp

Filesize
64KB

Download
memory/2156-117-0x00007FFE528C0000-0x00007FFE528D0000-memory.dmp

Filesize
64KB

Download
memory/2156-126-0x00007FFE4EFE0000-0x00007FFE4EFF0000-memory.dmp

Filesize
64KB

Download
memory/2156-127-0x00007FFE4EFE0000-0x00007FFE4EFF0000-memory.dmp

Filesize
64KB

Download
memory/4484-261-0x0000000000000000-mapping.dmp

Download
memory/4540-259-0x0000000000000000-mapping.dmp

Download
memory/4712-258-0x0000000000000000-mapping.dmp

Download
memory/5108-260-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads