yunsip | f53b45defd68ff09b608c1a27803d2794686315c5fb55bac7e316a9a475ca7a8

Analysis

max time kernel
80s
max time network
21s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-01-2025 17:41

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General

Target

f53b45defd68ff09b608c1a27803d2794686315c5fb55bac7e316a9a475ca7a8.dll
Size

838KB
MD5

05de8e1ad9694d45a3b9a166aea46265
SHA1

336adddaa016be646bd04a4e181ec77895ed92c7
SHA256

f53b45defd68ff09b608c1a27803d2794686315c5fb55bac7e316a9a475ca7a8
SHA512

cd38c3ca8c9ec18d96a33aacfa59499998659fe23d02ec3bfe0e3118ec9a46d48f88fef1278c87ade7f187dd9ad1ce2df273ee3325b7a0aa1b3e6edbb6518157
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0a:jDgtfRQUHPw06MoV2nwTBlhm8i

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 1892 wrote to memory of 2976	1892	rundll32.exe	31
PID 1892 wrote to memory of 2976	1892	rundll32.exe	31
PID 1892 wrote to memory of 2976	1892	rundll32.exe	31
PID 1892 wrote to memory of 2976	1892	rundll32.exe	31
PID 1892 wrote to memory of 2976	1892	rundll32.exe	31
PID 1892 wrote to memory of 2976	1892	rundll32.exe	31
PID 1892 wrote to memory of 2976	1892	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f53b45defd68ff09b608c1a27803d2794686315c5fb55bac7e316a9a475ca7a8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1892
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f53b45defd68ff09b608c1a27803d2794686315c5fb55bac7e316a9a475ca7a8.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2976

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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