yunsip | c0d3814e4270c066f139b32c39cfee550bfe55544d89e099cc2b398784df8f08

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04/01/2025, 00:24

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General

Target
JaffaCakes118_768f5d69aa3c407422535f197abe3b5b.dll
Size 467KB
Sample250104-ap1qsa1naz
SHA256 c0d3814e4270c066f139b32c39cfee550bfe55544d89e099cc2b398784df8f08
MD5 768f5d69aa3c407422535f197abe3b5b
SHA1 c97c64f89bb98f3374fa9dd415e81eb5007a3d78
SHA512 a412f71460769878a7912c591c9b829d810d0e0875a8f3b9c7e312fe3e2a2aa9486bbe38771f79d07861b28f71e8f8a0907633cde835c867e13e7f37bfdb5995
SSDEEP 3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0G:jDgtfRQUHPw06MoV2nwTBlhm8+
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 1940 wrote to memory of 5084	1940	rundll32.exe	83
PID 1940 wrote to memory of 5084	1940	rundll32.exe	83
PID 1940 wrote to memory of 5084	1940	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_768f5d69aa3c407422535f197abe3b5b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_768f5d69aa3c407422535f197abe3b5b.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5084

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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