40e87b453eee20b6c010483bd7dfb0372e5d1ed8baa196826c13f3bfab8276c9

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20240903-es
resource tags

arch:x64arch:x86image:win7-20240903-eslocale:es-esos:windows7-x64systemwindows
submitted
07/09/2024, 18:28

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General

Target

libcrypto-1_1.dll
Size

2.4MB
MD5

5edf3d7bfc0330faf3d342ee76acd11b
SHA1

58d571f94fb7932b38bbad7e95ce5f830bcc3b4a
SHA256

f670ae0edf0df35696158c19bd21041950f27ad349ad08699735c288a930e2aa
SHA512

f453413675a4d683096c4202f390bfe88b41eb855cc7f8662bbc6341263c8d0d614d19c3106d5231f78943673ec606ed9e3d6076c39d95ee533c8fd96f542fc3
SSDEEP

49152:6OP5ENi8AzyZtvgH98ei1CPwDv3uFfJqTyQ:6OPaZZ6H98Z1CPwDv3uFfJ

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1976	2408	WerFault.exe	30

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	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 2408	2568	rundll32.exe	30
PID 2568 wrote to memory of 2408	2568	rundll32.exe	30
PID 2568 wrote to memory of 2408	2568	rundll32.exe	30
PID 2568 wrote to memory of 2408	2568	rundll32.exe	30
PID 2568 wrote to memory of 2408	2568	rundll32.exe	30
PID 2568 wrote to memory of 2408	2568	rundll32.exe	30
PID 2568 wrote to memory of 2408	2568	rundll32.exe	30
PID 2408 wrote to memory of 1976	2408	rundll32.exe	31
PID 2408 wrote to memory of 1976	2408	rundll32.exe	31
PID 2408 wrote to memory of 1976	2408	rundll32.exe	31
PID 2408 wrote to memory of 1976	2408	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\libcrypto-1_1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\libcrypto-1_1.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2408
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2408 -s 224
    3⤵
    - Program crash
    PID:1976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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