yunsip | 0855928066c4745aad81a0a8a5e53dcd0a2e07ce46305139882b97950a2b2a41

Analysis

max time kernel
100s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2025, 20:49

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General

Target

0855928066c4745aad81a0a8a5e53dcd0a2e07ce46305139882b97950a2b2a41.dll
Size

747KB
MD5

131abe32516066c9930c7b3f90332987
SHA1

952412fad1e75a8939b46ecd2a87a6aa8616f413
SHA256

0855928066c4745aad81a0a8a5e53dcd0a2e07ce46305139882b97950a2b2a41
SHA512

970c0ffc629922a0af4d1bf81ff4b1e18167d2518124803cf3ef29b5390ea1c84a4fd69a975bb485862a67889b83364df31c3a11795cb590115615965ebb5179
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYX:o6RI1Fo/wT3cJYYYYYYYYYYYYX

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 3012 wrote to memory of 4356	3012	rundll32.exe	84
PID 3012 wrote to memory of 4356	3012	rundll32.exe	84
PID 3012 wrote to memory of 4356	3012	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0855928066c4745aad81a0a8a5e53dcd0a2e07ce46305139882b97950a2b2a41.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0855928066c4745aad81a0a8a5e53dcd0a2e07ce46305139882b97950a2b2a41.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4356

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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