0757e2d1427c9baeefa1ec3aff84a4e6d862259c84ace769726c66192858f196

Analysis

max time kernel
91s
max time network
19s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
12-02-2025 14:23

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General

Target

Justificante.ex.exe
Size

1.1MB
MD5

4a896da2e79d9647adb4b9c7518d6a71
SHA1

9569a9066aa22c7c0f7ab7de13e0901ebba2acb9
SHA256

f223fc784ed382188a3cd4ffe1d6a641617e0738fc9e018680f739d982ae502d
SHA512

3613beba76753955c4b0c165a7d3d82538cb5888470ea5e3dfbe9f412ec5238cc8f67ce477af96fd572344e026c25ef7f298e82e51837bd3f1cfc41a4e1c5405
SSDEEP

24576:RV8oce+0nvEKaxHoioqmEwbfqiPACOedfHYNXNHA6u:RV8xjevTsIqa/ACOdHA/

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2668	Justificante.ex.exe
2668	Justificante.ex.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Peppercorns241\septobasidium.ini	Justificante.ex.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2700	2668	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 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	Justificante.ex.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2700	2668	Justificante.ex.exe	30
PID 2668 wrote to memory of 2700	2668	Justificante.ex.exe	30
PID 2668 wrote to memory of 2700	2668	Justificante.ex.exe	30
PID 2668 wrote to memory of 2700	2668	Justificante.ex.exe	30

C:\Users\Admin\AppData\Local\Temp\Justificante.ex.exe
"C:\Users\Admin\AppData\Local\Temp\Justificante.ex.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2668 -s 472
  2⤵
  - Program crash
  PID:2700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nso560D.tmp\System.dll

Filesize
11KB

MD5
34442e1e0c2870341df55e1b7b3cccdc

SHA1
99b2fa21aead4b6ccd8ff2f6d3d3453a51d9c70c

SHA256
269d232712c86983336badb40b9e55e80052d8389ed095ebf9214964d43b6bb1

SHA512
4a8c57fb12997438b488b862f3fc9dc0f236e07bb47b2bce6053dcb03ac7ad171842f02ac749f02dda4719c681d186330524cd2953d33cb50854844e74b33d51

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