3cd8c38f276bfa7c2ef76b69b7c65408741fd1984018c548d85a3c0c23d66eba

General

Target

3cd8c38f276bfa7c2ef76b69b7c65408741fd1984018c548d85a3c0c23d66eba.xls
Size

95KB
MD5

5730dd2ebb70cdcccd6f27aa1084e6e6
SHA1

7f8b706fc041075afcd6f162157616843be7a235
SHA256

3cd8c38f276bfa7c2ef76b69b7c65408741fd1984018c548d85a3c0c23d66eba
SHA512

a2a34a2e3580eb70be593839c3f6466197f65dd3ca9527b8dc9f952ed138e7962d5c1ccd0b5eafc9e169f91e1887878a489637d17d196ae172d698eb49903532

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	4080	1008	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4468	1008	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3176	1008	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4688	1008	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 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

1008 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1008	EXCEL.EXE
1008	EXCEL.EXE
1008	EXCEL.EXE
1008	EXCEL.EXE
1008	EXCEL.EXE
1008	EXCEL.EXE
1008	EXCEL.EXE
1008	EXCEL.EXE
1008	EXCEL.EXE
1008	EXCEL.EXE
1008	EXCEL.EXE
1008	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1008 wrote to memory of 4080	1008	EXCEL.EXE	regsvr32.exe
PID 1008 wrote to memory of 4080	1008	EXCEL.EXE	regsvr32.exe
PID 1008 wrote to memory of 4468	1008	EXCEL.EXE	regsvr32.exe
PID 1008 wrote to memory of 4468	1008	EXCEL.EXE	regsvr32.exe
PID 1008 wrote to memory of 3176	1008	EXCEL.EXE	regsvr32.exe
PID 1008 wrote to memory of 3176	1008	EXCEL.EXE	regsvr32.exe
PID 1008 wrote to memory of 4688	1008	EXCEL.EXE	regsvr32.exe
PID 1008 wrote to memory of 4688	1008	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\3cd8c38f276bfa7c2ef76b69b7c65408741fd1984018c548d85a3c0c23d66eba.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1008

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:4080

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4468

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3176

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4688

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/1008-118-0x00007FFB9BBA0000-0x00007FFB9BBB0000-memory.dmp

Filesize
64KB

Download
memory/1008-119-0x00007FFB9BBA0000-0x00007FFB9BBB0000-memory.dmp

Filesize
64KB

Download
memory/1008-120-0x00007FFB9BBA0000-0x00007FFB9BBB0000-memory.dmp

Filesize
64KB

Download
memory/1008-121-0x00007FFB9BBA0000-0x00007FFB9BBB0000-memory.dmp

Filesize
64KB

Download
memory/1008-130-0x00007FFB98570000-0x00007FFB98580000-memory.dmp

Filesize
64KB

Download
memory/1008-131-0x00007FFB98570000-0x00007FFB98580000-memory.dmp

Filesize
64KB

Download
memory/3176-264-0x0000000000000000-mapping.dmp

Download
memory/4080-260-0x0000000000000000-mapping.dmp

Download
memory/4468-261-0x0000000000000000-mapping.dmp

Download
memory/4688-265-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads