yunsip | ad1415724f67b32036a57d51f59b27a2b58eb277f05a4de0c47c2c8714d78c2e

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-10-2024 22:22

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General

Target

ad1415724f67b32036a57d51f59b27a2b58eb277f05a4de0c47c2c8714d78c2eN.dll
Size

779KB
MD5

ca54f7fb5286a3a6363c708fd476c490
SHA1

5db5e857b5c8251ad573c248243f5a60ee045097
SHA256

ad1415724f67b32036a57d51f59b27a2b58eb277f05a4de0c47c2c8714d78c2e
SHA512

d028a24604d38ef9cb2ae1eb09217ee12b31825b3da38c1ab864b5c67126b49ea1b8bbc54b17bbc3bf7ff9e9a61f155098b047c20877bb2d198ed41f08c38fe5
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYd:o6RI1Fo/wT3cJYYYYYYYYYYYYd

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

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 7 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 1728	2092	rundll32.exe	31
PID 2092 wrote to memory of 1728	2092	rundll32.exe	31
PID 2092 wrote to memory of 1728	2092	rundll32.exe	31
PID 2092 wrote to memory of 1728	2092	rundll32.exe	31
PID 2092 wrote to memory of 1728	2092	rundll32.exe	31
PID 2092 wrote to memory of 1728	2092	rundll32.exe	31
PID 2092 wrote to memory of 1728	2092	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ad1415724f67b32036a57d51f59b27a2b58eb277f05a4de0c47c2c8714d78c2eN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ad1415724f67b32036a57d51f59b27a2b58eb277f05a4de0c47c2c8714d78c2eN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1728

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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