yunsip | 3de9747c3cc5cf2c07f01313ac67e8db3d6cf97b2ccdd06dbbbe507ea5cf8c2a

Analysis

max time kernel
121s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
18-02-2025 22:01

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General

Target

3de9747c3cc5cf2c07f01313ac67e8db3d6cf97b2ccdd06dbbbe507ea5cf8c2a.dll
Size

745KB
MD5

3f9f473314b462cc5de608d786ec4f9f
SHA1

bb4d280a50624150eac24169b08f4dc7cba10fd7
SHA256

3de9747c3cc5cf2c07f01313ac67e8db3d6cf97b2ccdd06dbbbe507ea5cf8c2a
SHA512

39c2ffd0b9f466c78ce4ea42344fc9a46dd157b017adbc40e9229347cc47450342468ad4c046a15bc68e567c2d854aebd493d2fd6222c3ed2bd70d563a43e5fb
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYf:o6RI1Fo/wT3cJYYYYYYYYYYYYf

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 4720 wrote to memory of 2732	4720	rundll32.exe	83
PID 4720 wrote to memory of 2732	4720	rundll32.exe	83
PID 4720 wrote to memory of 2732	4720	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3de9747c3cc5cf2c07f01313ac67e8db3d6cf97b2ccdd06dbbbe507ea5cf8c2a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4720
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3de9747c3cc5cf2c07f01313ac67e8db3d6cf97b2ccdd06dbbbe507ea5cf8c2a.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2732

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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