yunsip | a283a852fb421c5e5d8d6b42a3f5e3ee41d09a2cb9ab6421c514a843f0987952

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 01:45

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General

Target

a283a852fb421c5e5d8d6b42a3f5e3ee41d09a2cb9ab6421c514a843f0987952.dll
Size

698KB
MD5

7216d5886bb323221062dd809821956e
SHA1

8b6b8c92d552ec6e760e51098a9f0d6933b9c56f
SHA256

a283a852fb421c5e5d8d6b42a3f5e3ee41d09a2cb9ab6421c514a843f0987952
SHA512

63335a0a6acfa1e0ddad9168c42227997508e7826d76440dc095ed1ba779df1d41976aa6ccf561748a0922453bc7b5caad782d3a2baa62000c442d905d2a2b6c
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYk:o6RI1Fo/wT3cJYYYYYYYYYYYYk

Score

10^/10

yunsip banker discovery trojan

Malware Config

Signatures

Yunsip
Remote backdoor which communicates with a C2 server to receive commands.
trojan banker yunsip
Yunsip family
yunsip

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 3 IoCs

description	pid	Process	procid_target
PID 2916 wrote to memory of 2828	2916	rundll32.exe	84
PID 2916 wrote to memory of 2828	2916	rundll32.exe	84
PID 2916 wrote to memory of 2828	2916	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a283a852fb421c5e5d8d6b42a3f5e3ee41d09a2cb9ab6421c514a843f0987952.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a283a852fb421c5e5d8d6b42a3f5e3ee41d09a2cb9ab6421c514a843f0987952.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2828

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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