yunsip | 14d22116d6b5e78cb585617eef03e270b60a75b46e5197a15f175a738d615634

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
30-01-2025 09:38

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General

Target

JaffaCakes118_6150b3574db7d23a73ebf584a9a973ee.dll
Size

244KB
MD5

6150b3574db7d23a73ebf584a9a973ee
SHA1

5fcd23820ef5a807e92fc3a7efc5b2050c99d939
SHA256

14d22116d6b5e78cb585617eef03e270b60a75b46e5197a15f175a738d615634
SHA512

79f961739c74b4614a129b35fdcdb8abcc22da25b2704c56cf9b8f6b3b10d1fd1073241c9f7f9b951f0f6da11daa7184cd5a1793cb1d9345013f35c5307d60d1
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0G: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 7 IoCs

description	pid	Process	procid_target
PID 2892 wrote to memory of 2952	2892	rundll32.exe	30
PID 2892 wrote to memory of 2952	2892	rundll32.exe	30
PID 2892 wrote to memory of 2952	2892	rundll32.exe	30
PID 2892 wrote to memory of 2952	2892	rundll32.exe	30
PID 2892 wrote to memory of 2952	2892	rundll32.exe	30
PID 2892 wrote to memory of 2952	2892	rundll32.exe	30
PID 2892 wrote to memory of 2952	2892	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6150b3574db7d23a73ebf584a9a973ee.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6150b3574db7d23a73ebf584a9a973ee.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2952

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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