yunsip | 031ce523a492b08b8c68e3b685ebb886708e2ac5a9c8ae3df8b965756f1e82af

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-01-2025 12:59

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General

Target

031ce523a492b08b8c68e3b685ebb886708e2ac5a9c8ae3df8b965756f1e82afN.dll
Size

1.0MB
MD5

d6dc0e8d6e5f7410f4a5ce2692fef060
SHA1

f0baf831e081e752aeb3dcb7c8d0927a89ad9015
SHA256

031ce523a492b08b8c68e3b685ebb886708e2ac5a9c8ae3df8b965756f1e82af
SHA512

eb50a88a8de58a32a7a1feeea887b51ebb61e9b3a1a0d70b2d90d39c2ddcbe4dc5d0b1fe7c1688389e4c110b317563262eac493c182c489c6f8e50bb2bb28172
SSDEEP

3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZDh:o6C5AXbMn7UI1FoV2gwTBlrIckP3

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 1684 wrote to memory of 1804	1684	rundll32.exe	30
PID 1684 wrote to memory of 1804	1684	rundll32.exe	30
PID 1684 wrote to memory of 1804	1684	rundll32.exe	30
PID 1684 wrote to memory of 1804	1684	rundll32.exe	30
PID 1684 wrote to memory of 1804	1684	rundll32.exe	30
PID 1684 wrote to memory of 1804	1684	rundll32.exe	30
PID 1684 wrote to memory of 1804	1684	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\031ce523a492b08b8c68e3b685ebb886708e2ac5a9c8ae3df8b965756f1e82afN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\031ce523a492b08b8c68e3b685ebb886708e2ac5a9c8ae3df8b965756f1e82afN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1804

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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