yunsip | 7a50d698dc07461e011138cf9829d866e2a5d60318205fe81bd4a7fb5058d1e0

Analysis

max time kernel
32s
max time network
17s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
06-08-2024 01:36

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General

Target

3bb4e082013179552a53b218430efc00N.dll
Size

771KB
MD5

3bb4e082013179552a53b218430efc00
SHA1

171003d1472174863ad99b69ee6aa41ab39b36f0
SHA256

7a50d698dc07461e011138cf9829d866e2a5d60318205fe81bd4a7fb5058d1e0
SHA512

4f1e2a7b1c80b3bb71102773701a61692daaafd28f33bc6031b909df2937a8da68dba7d000862ca00053174b695a1dc40272961329c79fe2ef911eba8484b212
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYo:o6RI1Fo/wT3cJYYYYYYYYYYYYo

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 2728 wrote to memory of 2416	2728	rundll32.exe	30
PID 2728 wrote to memory of 2416	2728	rundll32.exe	30
PID 2728 wrote to memory of 2416	2728	rundll32.exe	30
PID 2728 wrote to memory of 2416	2728	rundll32.exe	30
PID 2728 wrote to memory of 2416	2728	rundll32.exe	30
PID 2728 wrote to memory of 2416	2728	rundll32.exe	30
PID 2728 wrote to memory of 2416	2728	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3bb4e082013179552a53b218430efc00N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3bb4e082013179552a53b218430efc00N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2416

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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