yunsip | 036cd66324fa79d6831751f887231daff655fed370838dd1e4bcb7c212ab4140

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01/03/2025, 19:17

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General

Target

036cd66324fa79d6831751f887231daff655fed370838dd1e4bcb7c212ab4140.dll
Size

854KB
MD5

854159eed88124083937c02c28c93d2e
SHA1

43d7dc3ae75c6ab70f4773db49db42ba19bda7dd
SHA256

036cd66324fa79d6831751f887231daff655fed370838dd1e4bcb7c212ab4140
SHA512

41450476d24292b372c87139bd1be894b46b62a79f47d127158ef4139dbcccff9c043115913f97080248c9f2efbb49975acf79fb76519b48b81d4d1509c72b20
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0U:jDgtfRQUHPw06MoV2nwTBlhm8c

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 2516 wrote to memory of 2172	2516	rundll32.exe	30
PID 2516 wrote to memory of 2172	2516	rundll32.exe	30
PID 2516 wrote to memory of 2172	2516	rundll32.exe	30
PID 2516 wrote to memory of 2172	2516	rundll32.exe	30
PID 2516 wrote to memory of 2172	2516	rundll32.exe	30
PID 2516 wrote to memory of 2172	2516	rundll32.exe	30
PID 2516 wrote to memory of 2172	2516	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\036cd66324fa79d6831751f887231daff655fed370838dd1e4bcb7c212ab4140.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\036cd66324fa79d6831751f887231daff655fed370838dd1e4bcb7c212ab4140.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2172

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

Windows 7 deprecation

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