a3f756230576903e07fdee9446f157629b304d5258e006470d82b02a407cc8f3

Analysis

max time kernel
134s
max time network
131s
platform
windows10_x64
resource
win10-20220414-en
submitted
07-07-2022 03:01

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General

Target

a3f756230576903e07fdee9446f157629b304d5258e006470d82b02a407cc8f3.xls
Size

95KB
MD5

fd7beeef565d61b85e9a2065c758f7ed
SHA1

6952a1a1c06428ef44b0e93b9f514e1450d6acaf
SHA256

a3f756230576903e07fdee9446f157629b304d5258e006470d82b02a407cc8f3
SHA512

32a4977aaf9cdafa476426917c437cdd0ac633a179cdb569b34973c2445ed7612ab1231e2807cde7fe7d1747433d6a34ea719e9d8471d3a2cae3bb8c0b26859e

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://edoraseguros.com.br/cgi-bin/jQNq9wlH1GXU/

Signatures

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

4720 EXCEL.EXE
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

EXCEL.EXE

pid process

4720 EXCEL.EXE
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

EXCEL.EXE

pid process

4720 EXCEL.EXE
4720 EXCEL.EXE
4720 EXCEL.EXE
4720 EXCEL.EXE
4720 EXCEL.EXE
4720 EXCEL.EXE

pid	process
4720	EXCEL.EXE

pid	process
4720	EXCEL.EXE

pid	process
4720	EXCEL.EXE
4720	EXCEL.EXE
4720	EXCEL.EXE
4720	EXCEL.EXE
4720	EXCEL.EXE
4720	EXCEL.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\a3f756230576903e07fdee9446f157629b304d5258e006470d82b02a407cc8f3.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:4720

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/4720-114-0x00007FFC64F50000-0x00007FFC64F60000-memory.dmp

Filesize
64KB

Download
memory/4720-115-0x00007FFC64F50000-0x00007FFC64F60000-memory.dmp

Filesize
64KB

Download
memory/4720-116-0x00007FFC64F50000-0x00007FFC64F60000-memory.dmp

Filesize
64KB

Download
memory/4720-117-0x00007FFC64F50000-0x00007FFC64F60000-memory.dmp

Filesize
64KB

Download
memory/4720-126-0x00007FFC61C00000-0x00007FFC61C10000-memory.dmp

Filesize
64KB

Download
memory/4720-127-0x00007FFC61C00000-0x00007FFC61C10000-memory.dmp

Filesize
64KB

Download