yunsip | cba6bf5ce67f882f133c07b8d6180c58d1eee3211aed0fbec6c771cc9e6e21cc

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
03-01-2025 15:01

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General

Target

JaffaCakes118_6d79e5b38d21d2de582c20353e665506.dll
Size

315KB
MD5

6d79e5b38d21d2de582c20353e665506
SHA1

19618d1c828900c25464a92dc5016d63e1b850b8
SHA256

cba6bf5ce67f882f133c07b8d6180c58d1eee3211aed0fbec6c771cc9e6e21cc
SHA512

ded202afbb996f7c373db126dda570621db01695d799cf08a415974ed55a5d4c1e019dfe765989282fd8aa824a4b983a1243b96082b7826e8568092dc774efb7
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0m:jDgtfRQUHPw06MoV2nwTBlhm8O

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 4476 wrote to memory of 4872	4476	rundll32.exe	82
PID 4476 wrote to memory of 4872	4476	rundll32.exe	82
PID 4476 wrote to memory of 4872	4476	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d79e5b38d21d2de582c20353e665506.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4476
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d79e5b38d21d2de582c20353e665506.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4872

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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