e91b0ff5ab4d2c8a1b0fa8a648afcd439f43a53ae181c601b7401b2fe4816b6f

General

Target

e91b0ff5ab4d2c8a1b0fa8a648afcd439f43a53ae181c601b7401b2fe4816b6f.xls
Size

95KB
MD5

a096354a13cc0bec8872f4f45e7ed157
SHA1

e0e4d5995d9fcd76d00de2581f41cd418ef3316b
SHA256

e91b0ff5ab4d2c8a1b0fa8a648afcd439f43a53ae181c601b7401b2fe4816b6f
SHA512

46ec3b32e43cdbee00538372a0b5ac6fe3870ddaaae2b216f74b4cf850b56550c567a95c93fdfa13fba5fe14a5a8660503f93a032c53089c49901fcfe87e0260

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	3400	4664	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	372	4664	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4524	4664	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3352	4664	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4664 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4664 EXCEL.EXE
4664 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4664	EXCEL.EXE
4664	EXCEL.EXE
4664	EXCEL.EXE
4664	EXCEL.EXE
4664	EXCEL.EXE
4664	EXCEL.EXE
4664	EXCEL.EXE
4664	EXCEL.EXE
4664	EXCEL.EXE
4664	EXCEL.EXE
4664	EXCEL.EXE
4664	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4664 wrote to memory of 3400	4664	EXCEL.EXE	regsvr32.exe
PID 4664 wrote to memory of 3400	4664	EXCEL.EXE	regsvr32.exe
PID 4664 wrote to memory of 372	4664	EXCEL.EXE	regsvr32.exe
PID 4664 wrote to memory of 372	4664	EXCEL.EXE	regsvr32.exe
PID 4664 wrote to memory of 4524	4664	EXCEL.EXE	regsvr32.exe
PID 4664 wrote to memory of 4524	4664	EXCEL.EXE	regsvr32.exe
PID 4664 wrote to memory of 3352	4664	EXCEL.EXE	regsvr32.exe
PID 4664 wrote to memory of 3352	4664	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\e91b0ff5ab4d2c8a1b0fa8a648afcd439f43a53ae181c601b7401b2fe4816b6f.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:4664

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3400

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:372

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4524

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3352

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/372-254-0x0000000000000000-mapping.dmp

Download
memory/3352-256-0x0000000000000000-mapping.dmp

Download
memory/3400-253-0x0000000000000000-mapping.dmp

Download
memory/4524-255-0x0000000000000000-mapping.dmp

Download
memory/4664-117-0x00007FFCCD3A0000-0x00007FFCCD3B0000-memory.dmp

Filesize
64KB

Download
memory/4664-118-0x00007FFCCD3A0000-0x00007FFCCD3B0000-memory.dmp

Filesize
64KB

Download
memory/4664-119-0x00007FFCCD3A0000-0x00007FFCCD3B0000-memory.dmp

Filesize
64KB

Download
memory/4664-120-0x00007FFCCD3A0000-0x00007FFCCD3B0000-memory.dmp

Filesize
64KB

Download
memory/4664-129-0x00007FFCCA380000-0x00007FFCCA390000-memory.dmp

Filesize
64KB

Download
memory/4664-130-0x00007FFCCA380000-0x00007FFCCA390000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads