f58571ab9a0fbc4ab328bcbe1e84d519c5503b5bdaeb27212b1b7d22c85ffdd9

General

Target

f58571ab9a0fbc4ab328bcbe1e84d519c5503b5bdaeb27212b1b7d22c85ffdd9.xls
Size

95KB
MD5

5189807bbea9211351a5e3c8b9c1368d
SHA1

1300d4e102d98cbb614e99cdf257ca770e58faa8
SHA256

f58571ab9a0fbc4ab328bcbe1e84d519c5503b5bdaeb27212b1b7d22c85ffdd9
SHA512

a0044aeaeb74470836400f6febf7b947651c3852aec271a502c4d6fe5aeaa59c6522d9372fb4f397aa3691b457468fcde2fd3d779d05bcca2e05f7371d4e4b1e

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	3428	3896	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3764	3896	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3732	3896	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1404	3896	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

3896 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3896 EXCEL.EXE
3896 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3896 wrote to memory of 3428	3896	EXCEL.EXE	regsvr32.exe
PID 3896 wrote to memory of 3428	3896	EXCEL.EXE	regsvr32.exe
PID 3896 wrote to memory of 3764	3896	EXCEL.EXE	regsvr32.exe
PID 3896 wrote to memory of 3764	3896	EXCEL.EXE	regsvr32.exe
PID 3896 wrote to memory of 3732	3896	EXCEL.EXE	regsvr32.exe
PID 3896 wrote to memory of 3732	3896	EXCEL.EXE	regsvr32.exe
PID 3896 wrote to memory of 1404	3896	EXCEL.EXE	regsvr32.exe
PID 3896 wrote to memory of 1404	3896	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\f58571ab9a0fbc4ab328bcbe1e84d519c5503b5bdaeb27212b1b7d22c85ffdd9.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:3896

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3428

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3764

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3732

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:1404

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/1404-274-0x0000000000000000-mapping.dmp

Download
memory/3428-271-0x0000000000000000-mapping.dmp

Download
memory/3732-273-0x0000000000000000-mapping.dmp

Download
memory/3764-272-0x0000000000000000-mapping.dmp

Download
memory/3896-121-0x00007FFEC05E0000-0x00007FFEC05F0000-memory.dmp

Filesize
64KB

Download
memory/3896-122-0x00007FFEC05E0000-0x00007FFEC05F0000-memory.dmp

Filesize
64KB

Download
memory/3896-131-0x00007FFEBD4C0000-0x00007FFEBD4D0000-memory.dmp

Filesize
64KB

Download
memory/3896-132-0x00007FFEBD4C0000-0x00007FFEBD4D0000-memory.dmp

Filesize
64KB

Download
memory/3896-119-0x00007FFEC05E0000-0x00007FFEC05F0000-memory.dmp

Filesize
64KB

Download
memory/3896-120-0x00007FFEC05E0000-0x00007FFEC05F0000-memory.dmp

Filesize
64KB

Download
memory/3896-313-0x00007FFEC05E0000-0x00007FFEC05F0000-memory.dmp

Filesize
64KB

Download
memory/3896-315-0x00007FFEC05E0000-0x00007FFEC05F0000-memory.dmp

Filesize
64KB

Download
memory/3896-316-0x00007FFEC05E0000-0x00007FFEC05F0000-memory.dmp

Filesize
64KB

Download
memory/3896-314-0x00007FFEC05E0000-0x00007FFEC05F0000-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