yunsip | 3bc45b8adf83b531b4667a6d87617de27635d549c320b19a02d639b1ad335171

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
29-10-2024 03:20

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General

Target

3bc45b8adf83b531b4667a6d87617de27635d549c320b19a02d639b1ad335171N.dll
Size

1.1MB
MD5

27f902421967ef4b41bb4fcff9004df0
SHA1

727d1172e0a7f956e46c6503fede8937c18f6f06
SHA256

3bc45b8adf83b531b4667a6d87617de27635d549c320b19a02d639b1ad335171
SHA512

fce9a12fdb2b5dacf21a9dbe2abd45b1826b057da458c9778df0fd5ce8f5fa222582fe6eb77e434a67fb62ee675dd17170deca46746a1a2d9ea7bc78afa5b02d
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYY2:o6RI1Fo/wT3cJYYYYYYYYYYYY2

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 2368 wrote to memory of 2408	2368	rundll32.exe	30
PID 2368 wrote to memory of 2408	2368	rundll32.exe	30
PID 2368 wrote to memory of 2408	2368	rundll32.exe	30
PID 2368 wrote to memory of 2408	2368	rundll32.exe	30
PID 2368 wrote to memory of 2408	2368	rundll32.exe	30
PID 2368 wrote to memory of 2408	2368	rundll32.exe	30
PID 2368 wrote to memory of 2408	2368	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3bc45b8adf83b531b4667a6d87617de27635d549c320b19a02d639b1ad335171N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3bc45b8adf83b531b4667a6d87617de27635d549c320b19a02d639b1ad335171N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2408

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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