yunsip | 0d7aaf8f52ebe0af430a562d6fea38eb16b993b6ed5a29761ff322e7e2bebea8

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
12/03/2025, 23:27

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_6da011dcd99d361393893a0414b2efa4.dll
Size

217KB
MD5

6da011dcd99d361393893a0414b2efa4
SHA1

d882dee842f22798f19e175276dc480cffc51b92
SHA256

0d7aaf8f52ebe0af430a562d6fea38eb16b993b6ed5a29761ff322e7e2bebea8
SHA512

5e66ff688ca7a75834bac0dc835aedc0e8f9911836367c517483904d15cea88f62aeb5fc6395762132bba4d0a19424884566a53eefe6c4ae6088c671674ef3c1
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0N:jDgtfRQUHPw06MoV2nwTBlhm81

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 2372 wrote to memory of 1604	2372	rundll32.exe	30
PID 2372 wrote to memory of 1604	2372	rundll32.exe	30
PID 2372 wrote to memory of 1604	2372	rundll32.exe	30
PID 2372 wrote to memory of 1604	2372	rundll32.exe	30
PID 2372 wrote to memory of 1604	2372	rundll32.exe	30
PID 2372 wrote to memory of 1604	2372	rundll32.exe	30
PID 2372 wrote to memory of 1604	2372	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6da011dcd99d361393893a0414b2efa4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6da011dcd99d361393893a0414b2efa4.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1604

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

Windows 7 deprecation

Loading Replay Monitor...