yunsip | 6aa0e63a9a02ab4f3c583e5d84761cd0b5f11b19875f985607dd75d6a78f4df5

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24/02/2025, 20:30

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General

Target

6aa0e63a9a02ab4f3c583e5d84761cd0b5f11b19875f985607dd75d6a78f4df5N.dll
Size

520KB
MD5

1cec7f335ad2cc3d008d465c84956ef0
SHA1

fa05257237df1fa2702ed9ca7629338308120aed
SHA256

6aa0e63a9a02ab4f3c583e5d84761cd0b5f11b19875f985607dd75d6a78f4df5
SHA512

dd17208f61ac7650a49344ae7d79dfd7a8d539fc965f1fd1b166ae45f1631edf03f29540fe3d689d4f5aec9c4526e4033a8901cf7fc380671a205df204bafcc8
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0t:jDgtfRQUHPw06MoV2nwTBlhm8l

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 2764 wrote to memory of 2760	2764	rundll32.exe	30
PID 2764 wrote to memory of 2760	2764	rundll32.exe	30
PID 2764 wrote to memory of 2760	2764	rundll32.exe	30
PID 2764 wrote to memory of 2760	2764	rundll32.exe	30
PID 2764 wrote to memory of 2760	2764	rundll32.exe	30
PID 2764 wrote to memory of 2760	2764	rundll32.exe	30
PID 2764 wrote to memory of 2760	2764	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6aa0e63a9a02ab4f3c583e5d84761cd0b5f11b19875f985607dd75d6a78f4df5N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6aa0e63a9a02ab4f3c583e5d84761cd0b5f11b19875f985607dd75d6a78f4df5N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2760

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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