yunsip | b90ce4d01505f63bfcd9b392559f9b637b302cd26d2394a70f618234ac8883f8

Analysis

max time kernel
14s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 03:01

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General

Target

b90ce4d01505f63bfcd9b392559f9b637b302cd26d2394a70f618234ac8883f8.dll
Size

568KB
MD5

dbb109139f8008bbf6ed8f54cd3f06f1
SHA1

b0765a3ce6be2f44595d445ea566102c0309ef17
SHA256

b90ce4d01505f63bfcd9b392559f9b637b302cd26d2394a70f618234ac8883f8
SHA512

4625b88daa3d748ee958ab9d8ca55dcdd84458eb36754eb68a8522e612919f135c24797f8e1cb08dd612c743d54d794a0d67c0a5db196932185a6e57b41cc96d
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0x:jDgtfRQUHPw06MoV2nwTBlhm8p

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

Processes:

rundll32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 2236 wrote to memory of 2384	2236	rundll32.exe	29
PID 2236 wrote to memory of 2384	2236	rundll32.exe	29
PID 2236 wrote to memory of 2384	2236	rundll32.exe	29
PID 2236 wrote to memory of 2384	2236	rundll32.exe	29
PID 2236 wrote to memory of 2384	2236	rundll32.exe	29
PID 2236 wrote to memory of 2384	2236	rundll32.exe	29
PID 2236 wrote to memory of 2384	2236	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b90ce4d01505f63bfcd9b392559f9b637b302cd26d2394a70f618234ac8883f8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b90ce4d01505f63bfcd9b392559f9b637b302cd26d2394a70f618234ac8883f8.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2384

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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