yunsip | 8b0a0e0409da0e87ff674cc3388c0921672a4101d152ce8b249a8c4c2a532916

Analysis

max time kernel
107s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
26/02/2025, 03:30

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General

Target

8b0a0e0409da0e87ff674cc3388c0921672a4101d152ce8b249a8c4c2a532916.dll
Size

760KB
MD5

2b3d97b28c19f6d03a863a90b153edcf
SHA1

d31e76c0f764306c04b8e48ddbb0e41cee5ee1af
SHA256

8b0a0e0409da0e87ff674cc3388c0921672a4101d152ce8b249a8c4c2a532916
SHA512

1b611158129ce1fcd4d5a9d60e2e462c65ed71c3c41283b2b4e39d3fdadf89ae4c176ac933e8984e797004a6a637fd465cd86db18d1a35610de64ccaaf7afc2a
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0l:jDgtfRQUHPw06MoV2nwTBlhm89

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 4696 wrote to memory of 4176	4696	rundll32.exe	85
PID 4696 wrote to memory of 4176	4696	rundll32.exe	85
PID 4696 wrote to memory of 4176	4696	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b0a0e0409da0e87ff674cc3388c0921672a4101d152ce8b249a8c4c2a532916.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4696
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b0a0e0409da0e87ff674cc3388c0921672a4101d152ce8b249a8c4c2a532916.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4176

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

Windows 7 deprecation

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