yunsip | 70b855a6bd2ba71dd212fdf9db973452d40e73bb06dd6db5a65ca3aa8a075132

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-01-2025 18:13

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General

Target

70b855a6bd2ba71dd212fdf9db973452d40e73bb06dd6db5a65ca3aa8a075132N.dll
Size

832KB
MD5

9c01477468a0e3ba20ccb48cf80603a0
SHA1

8250934677220ceae887d1768690cc4c6fb56b4a
SHA256

70b855a6bd2ba71dd212fdf9db973452d40e73bb06dd6db5a65ca3aa8a075132
SHA512

5c026d2b670a524e959a4f46e6b7853c7056d8809c18698f98e47195a5dd03931962207309d1a7c3f437f64f9e437c74946916394731209f8b8aca90b1e34d7d
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q03:jDgtfRQUHPw06MoV2nwTBlhm8v

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 4884 wrote to memory of 4628	4884	rundll32.exe	83
PID 4884 wrote to memory of 4628	4884	rundll32.exe	83
PID 4884 wrote to memory of 4628	4884	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\70b855a6bd2ba71dd212fdf9db973452d40e73bb06dd6db5a65ca3aa8a075132N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4884
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\70b855a6bd2ba71dd212fdf9db973452d40e73bb06dd6db5a65ca3aa8a075132N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4628

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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