yunsip | 4d07797a3abfcf52d8f89723d9b6b53739274bfc95133f7738214bbfa0a60dac

Analysis

max time kernel
73s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-09-2024 10:46

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General

Target

1d23b63d3665d7c8321d1ab9941e7960N.dll
Size

527KB
MD5

1d23b63d3665d7c8321d1ab9941e7960
SHA1

2bba819e4b7ea50977cf7ff8da2312f8b545943c
SHA256

4d07797a3abfcf52d8f89723d9b6b53739274bfc95133f7738214bbfa0a60dac
SHA512

a297049bdfb3a611317b700b4aac13a54335c01d7c50b277d3562cf305a63ba164725d0df45073585b98bd0b789fa811a0baac9198a4078537ee76c56ce3b710
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0F:jDgtfRQUHPw06MoV2nwTBlhm8d

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
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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1940 wrote to memory of 628	1940	rundll32.exe	rundll32.exe
PID 1940 wrote to memory of 628	1940	rundll32.exe	rundll32.exe
PID 1940 wrote to memory of 628	1940	rundll32.exe	rundll32.exe
PID 1940 wrote to memory of 628	1940	rundll32.exe	rundll32.exe
PID 1940 wrote to memory of 628	1940	rundll32.exe	rundll32.exe
PID 1940 wrote to memory of 628	1940	rundll32.exe	rundll32.exe
PID 1940 wrote to memory of 628	1940	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1d23b63d3665d7c8321d1ab9941e7960N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1940

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1d23b63d3665d7c8321d1ab9941e7960N.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:628

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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