cf0c4ea971c8025ac11b1d4b717b2d1fc8b49a1be5022c83b7c8760c19860474

General

Target

cf0c4ea971c8025ac11b1d4b717b2d1fc8b49a1be5022c83b7c8760c19860474.xls
Size

95KB
MD5

78b3327e250997f14c9bc3d2e2da9296
SHA1

86c136a72875264266f3e51347514816cdb22de1
SHA256

cf0c4ea971c8025ac11b1d4b717b2d1fc8b49a1be5022c83b7c8760c19860474
SHA512

c3e34e769ba8108a94e6cdd32b1dd8fe552ff1fbafc1fd266fbd0f8b15667ecf695502b3a0fd6c992ae0f72f7758eec9ce95db6413c420482c9e3b005fbfee28

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	864	3380	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3872	3380	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1916	3380	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1276	3380	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

3380 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3380 EXCEL.EXE
3380 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3380 wrote to memory of 864	3380	EXCEL.EXE	regsvr32.exe
PID 3380 wrote to memory of 864	3380	EXCEL.EXE	regsvr32.exe
PID 3380 wrote to memory of 3872	3380	EXCEL.EXE	regsvr32.exe
PID 3380 wrote to memory of 3872	3380	EXCEL.EXE	regsvr32.exe
PID 3380 wrote to memory of 1916	3380	EXCEL.EXE	regsvr32.exe
PID 3380 wrote to memory of 1916	3380	EXCEL.EXE	regsvr32.exe
PID 3380 wrote to memory of 1276	3380	EXCEL.EXE	regsvr32.exe
PID 3380 wrote to memory of 1276	3380	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\cf0c4ea971c8025ac11b1d4b717b2d1fc8b49a1be5022c83b7c8760c19860474.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:3380

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:864

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3872

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:1916

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:1276

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

Replay Monitor

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Downloads

memory/864-271-0x0000000000000000-mapping.dmp

Download
memory/1276-274-0x0000000000000000-mapping.dmp

Download
memory/1916-273-0x0000000000000000-mapping.dmp

Download
memory/3380-121-0x00007FFEC05E0000-0x00007FFEC05F0000-memory.dmp

Filesize
64KB

Download
memory/3380-122-0x00007FFEC05E0000-0x00007FFEC05F0000-memory.dmp

Filesize
64KB

Download
memory/3380-131-0x00007FFEBD4C0000-0x00007FFEBD4D0000-memory.dmp

Filesize
64KB

Download
memory/3380-132-0x00007FFEBD4C0000-0x00007FFEBD4D0000-memory.dmp

Filesize
64KB

Download
memory/3380-120-0x00007FFEC05E0000-0x00007FFEC05F0000-memory.dmp

Filesize
64KB

Download
memory/3380-119-0x00007FFEC05E0000-0x00007FFEC05F0000-memory.dmp

Filesize
64KB

Download
memory/3380-311-0x00007FFEC05E0000-0x00007FFEC05F0000-memory.dmp

Filesize
64KB

Download
memory/3380-312-0x00007FFEC05E0000-0x00007FFEC05F0000-memory.dmp

Filesize
64KB

Download
memory/3380-313-0x00007FFEC05E0000-0x00007FFEC05F0000-memory.dmp

Filesize
64KB

Download
memory/3380-314-0x00007FFEC05E0000-0x00007FFEC05F0000-memory.dmp

Filesize
64KB

Download
memory/3872-272-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads