yunsip | 21fc42aa4e1bbd6fccd8d5be1ba5dd418404181a4bd322ac9a1b7b14b00e30fe

Analysis

max time kernel
149s
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 02:23

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General

Target

JaffaCakes118_69a65e4dcce7d3b5327be426260472a0.dll
Size

529KB
MD5

69a65e4dcce7d3b5327be426260472a0
SHA1

4840ed236ff913c9263e206c27001f35f711e62a
SHA256

21fc42aa4e1bbd6fccd8d5be1ba5dd418404181a4bd322ac9a1b7b14b00e30fe
SHA512

30041d3037ea90b62efc69e01bf202b03ad5875824a8ff2982406a68df5439374915c77039f702cf82a4ac204bf200b31bd7e77ae5e6bfd72e75ab29b79e33b1
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0t:jDgtfRQUHPw06MoV2nwTBlhm8l

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 3280	4524	rundll32.exe	82
PID 4524 wrote to memory of 3280	4524	rundll32.exe	82
PID 4524 wrote to memory of 3280	4524	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69a65e4dcce7d3b5327be426260472a0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4524
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69a65e4dcce7d3b5327be426260472a0.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3280

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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