yunsip | 7fa275cdd52e5a2722b27f3df22664026bdfa1524a7444d6f41e79f3a6f1a540

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 16:09

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General

Target

JaffaCakes118_05ce9d161195e0794b326ca79b1c9619.dll
Size

378KB
MD5

05ce9d161195e0794b326ca79b1c9619
SHA1

5f86d215d3e776283d91545cde595552af5193e3
SHA256

7fa275cdd52e5a2722b27f3df22664026bdfa1524a7444d6f41e79f3a6f1a540
SHA512

408f6a72b94897e5153b800733350fc7b1ca4618bae14d04cdd0f4155a9f187dbb69ea2b3a804e652ad695e5baa1fed076e7811b18cc8868ccc8757c8f75364b
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0w:jDgtfRQUHPw06MoV2nwTBlhm84

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 2420 wrote to memory of 2892	2420	rundll32.exe	30
PID 2420 wrote to memory of 2892	2420	rundll32.exe	30
PID 2420 wrote to memory of 2892	2420	rundll32.exe	30
PID 2420 wrote to memory of 2892	2420	rundll32.exe	30
PID 2420 wrote to memory of 2892	2420	rundll32.exe	30
PID 2420 wrote to memory of 2892	2420	rundll32.exe	30
PID 2420 wrote to memory of 2892	2420	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05ce9d161195e0794b326ca79b1c9619.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05ce9d161195e0794b326ca79b1c9619.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2892

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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