yunsip | fbc0fe4b72f946aa65e886a445205ed9f553e32b658bb91020e42f83573f7d30

Analysis

max time kernel
19s
max time network
16s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
18-08-2024 17:10

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General

Target

759082c0631e1ba2078a3b85501565a0N.dll
Size

1.1MB
MD5

759082c0631e1ba2078a3b85501565a0
SHA1

86dfa5c7a5d5e3e4257d36ec0a925c7944fda024
SHA256

fbc0fe4b72f946aa65e886a445205ed9f553e32b658bb91020e42f83573f7d30
SHA512

e6c373581b4e50fa0cc48a36cb38ffd05b7a8f7210e2c16185d7e7a1a60da405b9d4e18bc8cbaed61948b1b0ae14685ccc18a2c797970bf05eaa35828cb30677
SSDEEP

12288:jDgN6MoIwT3qOOOOOOOOOOOOOOOOOOOOOOU:jTtT3qOOOOOOOOOOOOOOOOOOOOOOU

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 1716 wrote to memory of 824	1716	rundll32.exe	rundll32.exe
PID 1716 wrote to memory of 824	1716	rundll32.exe	rundll32.exe
PID 1716 wrote to memory of 824	1716	rundll32.exe	rundll32.exe
PID 1716 wrote to memory of 824	1716	rundll32.exe	rundll32.exe
PID 1716 wrote to memory of 824	1716	rundll32.exe	rundll32.exe
PID 1716 wrote to memory of 824	1716	rundll32.exe	rundll32.exe
PID 1716 wrote to memory of 824	1716	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\759082c0631e1ba2078a3b85501565a0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1716

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\759082c0631e1ba2078a3b85501565a0N.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:824

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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