yunsip | 99d447432f1d5a6be91c60022a25d6930a72efedd19ad5c2a2ab1af4d177162f

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
19-02-2025 03:50

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General

Target

99d447432f1d5a6be91c60022a25d6930a72efedd19ad5c2a2ab1af4d177162f.dll
Size

521KB
MD5

ed87530a5deaa922d2911d2679b8de1d
SHA1

709a57d08b64d2af539bb6953495df003085dee9
SHA256

99d447432f1d5a6be91c60022a25d6930a72efedd19ad5c2a2ab1af4d177162f
SHA512

5e28b5088f371448e216065b989fe7cf54f981b4f7b0ee635f8d18c3f7de89bf85ad274ac744e95cef9cc5c510a91cf6f700e19b0537833be62a43be362cb2d3
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0f:jDgtfRQUHPw06MoV2nwTBlhm8n

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 2096 wrote to memory of 2112	2096	rundll32.exe	30
PID 2096 wrote to memory of 2112	2096	rundll32.exe	30
PID 2096 wrote to memory of 2112	2096	rundll32.exe	30
PID 2096 wrote to memory of 2112	2096	rundll32.exe	30
PID 2096 wrote to memory of 2112	2096	rundll32.exe	30
PID 2096 wrote to memory of 2112	2096	rundll32.exe	30
PID 2096 wrote to memory of 2112	2096	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\99d447432f1d5a6be91c60022a25d6930a72efedd19ad5c2a2ab1af4d177162f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\99d447432f1d5a6be91c60022a25d6930a72efedd19ad5c2a2ab1af4d177162f.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2112

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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