yunsip | b1b3d930ef33c60c98751534b3bba1990dc83585bb1d189fc1b023086a63cfa3

Analysis

max time kernel
14s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
17-11-2024 17:27

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General

Target

b1b3d930ef33c60c98751534b3bba1990dc83585bb1d189fc1b023086a63cfa3.dll
Size

732KB
MD5

b66b6df872f208c9c8bb547dbd3ce0e7
SHA1

f37812528b55d65722aaf3df514b620316132b15
SHA256

b1b3d930ef33c60c98751534b3bba1990dc83585bb1d189fc1b023086a63cfa3
SHA512

ec34f535202496ab206df9070d6a7e945f423509a42dc576e664625b206f6fafaac4a92cc2f7719ab8c7b11e50cc427f4b925dda94e7d7c6ac76f5c2e16528f6
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0V: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 2496 wrote to memory of 2340	2496	rundll32.exe	29
PID 2496 wrote to memory of 2340	2496	rundll32.exe	29
PID 2496 wrote to memory of 2340	2496	rundll32.exe	29
PID 2496 wrote to memory of 2340	2496	rundll32.exe	29
PID 2496 wrote to memory of 2340	2496	rundll32.exe	29
PID 2496 wrote to memory of 2340	2496	rundll32.exe	29
PID 2496 wrote to memory of 2340	2496	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1b3d930ef33c60c98751534b3bba1990dc83585bb1d189fc1b023086a63cfa3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1b3d930ef33c60c98751534b3bba1990dc83585bb1d189fc1b023086a63cfa3.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2340

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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