yunsip | f2e98acb39c853c81004d81e3812b6534af2fd93b849d92868ba0e1ba29a0783

Analysis

max time kernel
94s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02/01/2025, 00:25

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General

Target
JaffaCakes118_618a7331d3ae86850fbc918400917010.dll
Size 267KB
Sample250102-aqqbfaspht
SHA256 f2e98acb39c853c81004d81e3812b6534af2fd93b849d92868ba0e1ba29a0783
MD5 618a7331d3ae86850fbc918400917010
SHA1 8d19b6141763286fcb7ad65f3692953e17d20196
SHA512 c01faa3b273b429817e73ea812553c888e0ed270bf5026c3e6f9da5ec2a8bfb0526e6facd044a16749df53fb6251649454ca3d6e054fb59c42e08fbf803a02a3
SSDEEP 3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0p:jDgtfRQUHPw06MoV2nwTBlhm8h
MD5 SHA1 SHA512 SSDEEP

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 4524 wrote to memory of 1196	4524	rundll32.exe	85
PID 4524 wrote to memory of 1196	4524	rundll32.exe	85
PID 4524 wrote to memory of 1196	4524	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_618a7331d3ae86850fbc918400917010.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4524
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_618a7331d3ae86850fbc918400917010.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1196

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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