yunsip | 888c5f84c9fcf25c6d0d09b3467959c2dc7f631407e07ae86436e21ebc6821cb

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-10-2024 06:09

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General

Target

888c5f84c9fcf25c6d0d09b3467959c2dc7f631407e07ae86436e21ebc6821cbN.dll
Size

585KB
MD5

9b505932eeba8816f47dbbfb623742b0
SHA1

33d74ef890e5666ffcc5edbc1eec268b6f5fe3bc
SHA256

888c5f84c9fcf25c6d0d09b3467959c2dc7f631407e07ae86436e21ebc6821cb
SHA512

843206e0d7429eafb484cc89c0a733f3f4c26cda9b7454faccb561dc5d5d48593223f654095d4f3efc30b9ee64972f3eb6586cacf12fdf5f14b7057894a00fa2
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYE:o6RI1Fo/wT3cJYYYYYYYYYYYYE

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

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 2328 wrote to memory of 2612	2328	rundll32.exe	31
PID 2328 wrote to memory of 2612	2328	rundll32.exe	31
PID 2328 wrote to memory of 2612	2328	rundll32.exe	31
PID 2328 wrote to memory of 2612	2328	rundll32.exe	31
PID 2328 wrote to memory of 2612	2328	rundll32.exe	31
PID 2328 wrote to memory of 2612	2328	rundll32.exe	31
PID 2328 wrote to memory of 2612	2328	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\888c5f84c9fcf25c6d0d09b3467959c2dc7f631407e07ae86436e21ebc6821cbN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\888c5f84c9fcf25c6d0d09b3467959c2dc7f631407e07ae86436e21ebc6821cbN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2612

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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