b0250ebf28def9886afdab5cbe5c9cd3b073b54ad6b512a7d8aa7e0fe453cdb7

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
20/11/2024, 12:50

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General

Target

b0250ebf28def9886afdab5cbe5c9cd3b073b54ad6b512a7d8aa7e0fe453cdb7.xls
Size

47KB
MD5

4b62a660d524be0108d60e34cf414aca
SHA1

1f020a6c98feead640bf5b02c701a265ac02cc1e
SHA256

b0250ebf28def9886afdab5cbe5c9cd3b073b54ad6b512a7d8aa7e0fe453cdb7
SHA512

0df7d2725fc4c18c97ad957ab6512396856a1b4f96867ca4b4d2efb129b64657c0d9d064464de1651e9fc1ef9f658e51c77b6ba3871bf4bce431b90a72438da6
SSDEEP

768:4DM52tfQXi8vgLZkTOHkQT51Vp6AwPdM8gQ6JT5X6DGwUdh+pqjeSLjcvLtzrxFW:462tfQXi8vgLZkTOHkQT51Vp6AwPe8gD

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://www.escueladecinemza.com.ar/_installation/IBlj/

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2724	2568	regsvr32.exe	29

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2568	EXCEL.EXE

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2568	EXCEL.EXE
2568	EXCEL.EXE
2568	EXCEL.EXE
2568	EXCEL.EXE
2568	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 2724	2568	EXCEL.EXE	32
PID 2568 wrote to memory of 2724	2568	EXCEL.EXE	32
PID 2568 wrote to memory of 2724	2568	EXCEL.EXE	32
PID 2568 wrote to memory of 2724	2568	EXCEL.EXE	32
PID 2568 wrote to memory of 2724	2568	EXCEL.EXE	32
PID 2568 wrote to memory of 2724	2568	EXCEL.EXE	32
PID 2568 wrote to memory of 2724	2568	EXCEL.EXE	32

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\b0250ebf28def9886afdab5cbe5c9cd3b073b54ad6b512a7d8aa7e0fe453cdb7.xls
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32.exe ..\wnrul.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\wnrul.ocx

Filesize
86KB

MD5
dfdb83bd3445e3f2ea46b104976c8d43

SHA1
78e1237f69e9ba18a68a2c72b6a78179fc01c29b

SHA256
76e4a6a2d7ade92678bdc5dd447199ce8f16496d32b36b000726053a89e89443

SHA512
6950cad2b1e7f9a20015ee358a44a7def9db96cb395c21a21fece6348e24cf4d307e10091b5f84edeb84368d9f435a82366ed992bcb372e078571a7b97cc328a

Download Submit
memory/2568-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2568-1-0x00000000726CD000-0x00000000726D8000-memory.dmp

Filesize
44KB

Download
memory/2568-21-0x00000000726CD000-0x00000000726D8000-memory.dmp

Filesize
44KB

Download