yunsip | bc0139e0a1d6a459ac67eb08d34857c75b90500b864cf64df3030619eaa24a06

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-12-2024 23:17

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General

Target

bc0139e0a1d6a459ac67eb08d34857c75b90500b864cf64df3030619eaa24a06.dll
Size

729KB
MD5

00f5ba1f8b3b152f110cf84505c521f9
SHA1

7c751b2317743f8e058d03404c7ee461428fdf76
SHA256

bc0139e0a1d6a459ac67eb08d34857c75b90500b864cf64df3030619eaa24a06
SHA512

a8de8665adbc6b3980dd84f55959fadb1a0166290cac404186ccf2201691d7b209f0502dbafa5b3b82d6bb740b9374ab2619f20842b6ac96ce0acea2f90a4f21
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0U:jDgtfRQUHPw06MoV2nwTBlhm8c

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 2336 wrote to memory of 1864	2336	rundll32.exe	30
PID 2336 wrote to memory of 1864	2336	rundll32.exe	30
PID 2336 wrote to memory of 1864	2336	rundll32.exe	30
PID 2336 wrote to memory of 1864	2336	rundll32.exe	30
PID 2336 wrote to memory of 1864	2336	rundll32.exe	30
PID 2336 wrote to memory of 1864	2336	rundll32.exe	30
PID 2336 wrote to memory of 1864	2336	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bc0139e0a1d6a459ac67eb08d34857c75b90500b864cf64df3030619eaa24a06.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bc0139e0a1d6a459ac67eb08d34857c75b90500b864cf64df3030619eaa24a06.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1864

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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