f1a7d20f16d078c3e945b4ea55f807568ce011821ae61a6ec173c2f222a65209

General

Target

f1a7d20f16d078c3e945b4ea55f807568ce011821ae61a6ec173c2f222a65209.xls
Size

95KB
MD5

c9c6a7f628ba13c372634d3bb540502c
SHA1

a8d22a375a648069cfb04ac8a8553e83a46930a6
SHA256

f1a7d20f16d078c3e945b4ea55f807568ce011821ae61a6ec173c2f222a65209
SHA512

cd2eaf59e3dad689f51cb828e7767090c33e4eabf56722c21e7c7de915e7fb84517d5dab717a31948e5949b3e0492586affd46b4e789338a7a7bef2860b6b53a

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	3904	2080	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3160	2080	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1000	2080	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3856	2080	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

2080 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2080 EXCEL.EXE
2080 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2080	EXCEL.EXE
2080	EXCEL.EXE
2080	EXCEL.EXE
2080	EXCEL.EXE
2080	EXCEL.EXE
2080	EXCEL.EXE
2080	EXCEL.EXE
2080	EXCEL.EXE
2080	EXCEL.EXE
2080	EXCEL.EXE
2080	EXCEL.EXE
2080	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2080 wrote to memory of 3904	2080	EXCEL.EXE	regsvr32.exe
PID 2080 wrote to memory of 3904	2080	EXCEL.EXE	regsvr32.exe
PID 2080 wrote to memory of 3160	2080	EXCEL.EXE	regsvr32.exe
PID 2080 wrote to memory of 3160	2080	EXCEL.EXE	regsvr32.exe
PID 2080 wrote to memory of 1000	2080	EXCEL.EXE	regsvr32.exe
PID 2080 wrote to memory of 1000	2080	EXCEL.EXE	regsvr32.exe
PID 2080 wrote to memory of 3856	2080	EXCEL.EXE	regsvr32.exe
PID 2080 wrote to memory of 3856	2080	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\f1a7d20f16d078c3e945b4ea55f807568ce011821ae61a6ec173c2f222a65209.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:2080

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3904

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3160

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:1000

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3856

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/1000-272-0x0000000000000000-mapping.dmp

Download
memory/2080-118-0x00007FFB63430000-0x00007FFB63440000-memory.dmp

Filesize
64KB

Download
memory/2080-119-0x00007FFB63430000-0x00007FFB63440000-memory.dmp

Filesize
64KB

Download
memory/2080-120-0x00007FFB63430000-0x00007FFB63440000-memory.dmp

Filesize
64KB

Download
memory/2080-121-0x00007FFB63430000-0x00007FFB63440000-memory.dmp

Filesize
64KB

Download
memory/2080-130-0x00007FFB5FE40000-0x00007FFB5FE50000-memory.dmp

Filesize
64KB

Download
memory/2080-131-0x00007FFB5FE40000-0x00007FFB5FE50000-memory.dmp

Filesize
64KB

Download
memory/3160-271-0x0000000000000000-mapping.dmp

Download
memory/3856-273-0x0000000000000000-mapping.dmp

Download
memory/3904-270-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads