yunsip | a5bca4662299449b6cd9f826c7dd828378891905e854c4b89d6163c371d36182

Analysis

max time kernel
133s
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
27-10-2024 00:08

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General

Target

a5bca4662299449b6cd9f826c7dd828378891905e854c4b89d6163c371d36182N.dll
Size

577KB
MD5

7277e3b72f3e6b0dd365b607c7397c80
SHA1

0f143d99c7f37e8f87f2b1d1687d774bbc2b6451
SHA256

a5bca4662299449b6cd9f826c7dd828378891905e854c4b89d6163c371d36182
SHA512

22c4302961b4b7eecd41bc07b234fa50be8033e438680b8f2dd616388732fb9d5c8ac3c4dfc88ea0f3ebd8f78ccf2f6a1d0c666d874958587835f844bdf80543
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYN:o6RI1Fo/wT3cJYYYYYYYYYYYYN

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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4812 wrote to memory of 3760	4812	rundll32.exe	rundll32.exe
PID 4812 wrote to memory of 3760	4812	rundll32.exe	rundll32.exe
PID 4812 wrote to memory of 3760	4812	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a5bca4662299449b6cd9f826c7dd828378891905e854c4b89d6163c371d36182N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4812
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a5bca4662299449b6cd9f826c7dd828378891905e854c4b89d6163c371d36182N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3760

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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