yunsip | 87d54e799dec7801594dfa9da88d25bbb04f549b8f42e3da271aabccceec1114

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
15-08-2024 15:32

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General

Target

fa567a5cd68711bf218f49588279bf10N.dll
Size

693KB
MD5

fa567a5cd68711bf218f49588279bf10
SHA1

3b613845ee3d7e2546fe6c0a9aba7119c93a851e
SHA256

87d54e799dec7801594dfa9da88d25bbb04f549b8f42e3da271aabccceec1114
SHA512

0ae2ca88db46b707c77deb0db33dc7b1654db7135a9cae28711678cafed314979fb6f5a2c96751dbd458d375bea9b9bb69bef73960112462a177f944ad14f7e9
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0S:jDgtfRQUHPw06MoV2nwTBlhm8q

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 3040 wrote to memory of 588	3040	rundll32.exe	rundll32.exe
PID 3040 wrote to memory of 588	3040	rundll32.exe	rundll32.exe
PID 3040 wrote to memory of 588	3040	rundll32.exe	rundll32.exe
PID 3040 wrote to memory of 588	3040	rundll32.exe	rundll32.exe
PID 3040 wrote to memory of 588	3040	rundll32.exe	rundll32.exe
PID 3040 wrote to memory of 588	3040	rundll32.exe	rundll32.exe
PID 3040 wrote to memory of 588	3040	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fa567a5cd68711bf218f49588279bf10N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3040

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fa567a5cd68711bf218f49588279bf10N.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:588

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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