yunsip | dfa623e827be43956a92bb23d41e7fd35781075eabba8d849b5f9c47b8d0cde4

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 19:50

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General

Target

dfa623e827be43956a92bb23d41e7fd35781075eabba8d849b5f9c47b8d0cde4.dll
Size

833KB
MD5

04b73c24bdb8d51a03c23a4e8704fdf8
SHA1

4bbb4ed69460295ebb29a21e00136b426a9e6f03
SHA256

dfa623e827be43956a92bb23d41e7fd35781075eabba8d849b5f9c47b8d0cde4
SHA512

d583b64b1fcba5abc22244a6e35033da387db91033ca45496314757e1fca6cc3ad1fadff24ca9b0026c8a4486834e63b080cc63a9f8016ce2746de95409a234e
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0N: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 7 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2196	2236	rundll32.exe	30
PID 2236 wrote to memory of 2196	2236	rundll32.exe	30
PID 2236 wrote to memory of 2196	2236	rundll32.exe	30
PID 2236 wrote to memory of 2196	2236	rundll32.exe	30
PID 2236 wrote to memory of 2196	2236	rundll32.exe	30
PID 2236 wrote to memory of 2196	2236	rundll32.exe	30
PID 2236 wrote to memory of 2196	2236	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dfa623e827be43956a92bb23d41e7fd35781075eabba8d849b5f9c47b8d0cde4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\dfa623e827be43956a92bb23d41e7fd35781075eabba8d849b5f9c47b8d0cde4.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2196

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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