yunsip | 9f1cc53636f6ba22e353f3c4b9c1da1889084b5cb2d74a37bda3a9739fd7fa0e

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
24/02/2025, 09:51

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General

Target

9f1cc53636f6ba22e353f3c4b9c1da1889084b5cb2d74a37bda3a9739fd7fa0e.dll
Size

528KB
MD5

4c40f1c799d2d622eaea49601eaa8afa
SHA1

4eb82238c3683a456df2824d3b0ec7597c95e668
SHA256

9f1cc53636f6ba22e353f3c4b9c1da1889084b5cb2d74a37bda3a9739fd7fa0e
SHA512

0e5bf7f6c07ffaeba407069756c8e5e147ba26d01d99e1505d6b29c598bc3286fd3f3ebea42064454bfb86ad8bef390ed7dbe8d5b80a672be34c2a1a6e9fd57a
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0a:jDgtfRQUHPw06MoV2nwTBlhm8y

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 7 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 2956	2508	rundll32.exe	30
PID 2508 wrote to memory of 2956	2508	rundll32.exe	30
PID 2508 wrote to memory of 2956	2508	rundll32.exe	30
PID 2508 wrote to memory of 2956	2508	rundll32.exe	30
PID 2508 wrote to memory of 2956	2508	rundll32.exe	30
PID 2508 wrote to memory of 2956	2508	rundll32.exe	30
PID 2508 wrote to memory of 2956	2508	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9f1cc53636f6ba22e353f3c4b9c1da1889084b5cb2d74a37bda3a9739fd7fa0e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9f1cc53636f6ba22e353f3c4b9c1da1889084b5cb2d74a37bda3a9739fd7fa0e.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2956

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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