c73ebca6f04236bac25500cdc32512cdee65fd18e74795f8e6562f9d17d1295d

General

Target

c73ebca6f04236bac25500cdc32512cdee65fd18e74795f8e6562f9d17d1295d.xls
Size

95KB
MD5

d7142a70449a034153eac914f4640e97
SHA1

2249ce639c48843b961a456465873b2cc32e3726
SHA256

c73ebca6f04236bac25500cdc32512cdee65fd18e74795f8e6562f9d17d1295d
SHA512

90fdef7cfa5920e76501ec5b28163adde28211614230cdb31188b6970fb138049c0667eb05466aef1595acb7e1199524260fc462b0093dc5ffb1878cc70592cd

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	3592	3532	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1476	3532	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1464	3532	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3816	3532	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

3532 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3532 EXCEL.EXE
3532 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3532	EXCEL.EXE
3532	EXCEL.EXE
3532	EXCEL.EXE
3532	EXCEL.EXE
3532	EXCEL.EXE
3532	EXCEL.EXE
3532	EXCEL.EXE
3532	EXCEL.EXE
3532	EXCEL.EXE
3532	EXCEL.EXE
3532	EXCEL.EXE
3532	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3532 wrote to memory of 3592	3532	EXCEL.EXE	regsvr32.exe
PID 3532 wrote to memory of 3592	3532	EXCEL.EXE	regsvr32.exe
PID 3532 wrote to memory of 1476	3532	EXCEL.EXE	regsvr32.exe
PID 3532 wrote to memory of 1476	3532	EXCEL.EXE	regsvr32.exe
PID 3532 wrote to memory of 1464	3532	EXCEL.EXE	regsvr32.exe
PID 3532 wrote to memory of 1464	3532	EXCEL.EXE	regsvr32.exe
PID 3532 wrote to memory of 3816	3532	EXCEL.EXE	regsvr32.exe
PID 3532 wrote to memory of 3816	3532	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\c73ebca6f04236bac25500cdc32512cdee65fd18e74795f8e6562f9d17d1295d.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:3532

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3592

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:1476

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:1464

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3816

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

Loading Replay Monitor...

Downloads

memory/1464-272-0x0000000000000000-mapping.dmp

Download
memory/1476-271-0x0000000000000000-mapping.dmp

Download
memory/3532-118-0x00007FFB10F20000-0x00007FFB10F30000-memory.dmp

Filesize
64KB

Download
memory/3532-119-0x00007FFB10F20000-0x00007FFB10F30000-memory.dmp

Filesize
64KB

Download
memory/3532-120-0x00007FFB10F20000-0x00007FFB10F30000-memory.dmp

Filesize
64KB

Download
memory/3532-121-0x00007FFB10F20000-0x00007FFB10F30000-memory.dmp

Filesize
64KB

Download
memory/3532-130-0x00007FFB0D3B0000-0x00007FFB0D3C0000-memory.dmp

Filesize
64KB

Download
memory/3532-131-0x00007FFB0D3B0000-0x00007FFB0D3C0000-memory.dmp

Filesize
64KB

Download
memory/3592-270-0x0000000000000000-mapping.dmp

Download
memory/3816-273-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads