yunsip | ae8b5702bf1e435cd706f59d9313a7b106ddffb66066e8d4aa1d91906fd6149f

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24/11/2024, 02:16

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General

Target
ae8b5702bf1e435cd706f59d9313a7b106ddffb66066e8d4aa1d91906fd6149f.dll
Size 814KB
Sample241124-cqcrfsynhy
SHA256 ae8b5702bf1e435cd706f59d9313a7b106ddffb66066e8d4aa1d91906fd6149f
MD5 187485ea2425d47eeb6b105ef1aa15a5
SHA1 ea618a1bb76a15311ab0df93e3720701c599f022
SHA512 c04855890667abeab47e5b5ff07d93e04bb3f2f15c35920922f22b0b92f17f54bb3e09038c3329e05593549949d5838461748ce3275fa3fcd556f0601c80f34d
SSDEEP 6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYy:o6RI1Fo/wT3cJYYYYYYYYYYYYy
MD5 SHA1 SHA512 SSDEEP

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 3 IoCs

description	pid	Process	procid_target
PID 3896 wrote to memory of 4220	3896	rundll32.exe	83
PID 3896 wrote to memory of 4220	3896	rundll32.exe	83
PID 3896 wrote to memory of 4220	3896	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ae8b5702bf1e435cd706f59d9313a7b106ddffb66066e8d4aa1d91906fd6149f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3896
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ae8b5702bf1e435cd706f59d9313a7b106ddffb66066e8d4aa1d91906fd6149f.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4220

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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