yunsip | 508e49f7d5acb9f57e7cf3613621d89b1ebc2e886f81c91eea4fb911fd6b506d

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
24/02/2025, 15:10

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General

Target

508e49f7d5acb9f57e7cf3613621d89b1ebc2e886f81c91eea4fb911fd6b506d.dll
Size

526KB
MD5

b255a46fe01a201da18ab5b0e1d3ea28
SHA1

09d2775a3f173cff6aaf68e1718982535e87b75e
SHA256

508e49f7d5acb9f57e7cf3613621d89b1ebc2e886f81c91eea4fb911fd6b506d
SHA512

d4901e11bced1557e40dd507e8a38170c627a046bf3a80be5ec06af69ed9c4a4b45bf7442c6987c074814b0bca64f0902aaf10a277cbeb044ebc5dab1f5efa7f
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0v:jDgtfRQUHPw06MoV2nwTBlhm8X

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 1696 wrote to memory of 2084	1696	rundll32.exe	30
PID 1696 wrote to memory of 2084	1696	rundll32.exe	30
PID 1696 wrote to memory of 2084	1696	rundll32.exe	30
PID 1696 wrote to memory of 2084	1696	rundll32.exe	30
PID 1696 wrote to memory of 2084	1696	rundll32.exe	30
PID 1696 wrote to memory of 2084	1696	rundll32.exe	30
PID 1696 wrote to memory of 2084	1696	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\508e49f7d5acb9f57e7cf3613621d89b1ebc2e886f81c91eea4fb911fd6b506d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1696
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\508e49f7d5acb9f57e7cf3613621d89b1ebc2e886f81c91eea4fb911fd6b506d.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2084

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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