yunsip | 935c8f0f7cd6f83f20569511b6866f1074e8de359f2c91b03ffea6e2697fe04e

Analysis

max time kernel
94s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
11/03/2025, 12:20

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General

Target

JaffaCakes118_6534ab3c12cbcded1bcd33cdde544fe7.dll
Size

238KB
MD5

6534ab3c12cbcded1bcd33cdde544fe7
SHA1

1c0f48974541157fd54622009d1f0f9f4a855f04
SHA256

935c8f0f7cd6f83f20569511b6866f1074e8de359f2c91b03ffea6e2697fe04e
SHA512

7798e9a5d17a51dc592f0be19242b4a970ff7a498cd049532a3f5a4d7918ad3f4fced75e18aa6679f56860ec6ff11e008ab8051c917d83336ce0e9a64350dcb2
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0n:jDgtfRQUHPw06MoV2nwTBlhm8f

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 2484 wrote to memory of 5108	2484	rundll32.exe	84
PID 2484 wrote to memory of 5108	2484	rundll32.exe	84
PID 2484 wrote to memory of 5108	2484	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6534ab3c12cbcded1bcd33cdde544fe7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6534ab3c12cbcded1bcd33cdde544fe7.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5108

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

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