yunsip | 71d534030e59b5c0de6f4e85b9fe9c90917f66f4cffc3ed5b8549c991f5c1c76

Analysis

max time kernel
100s
max time network
81s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
25/02/2025, 08:02

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General

Target

71d534030e59b5c0de6f4e85b9fe9c90917f66f4cffc3ed5b8549c991f5c1c76.dll
Size

520KB
MD5

1c4c1d82c273e884c90e5afe5cc5e1fc
SHA1

3b40c7032d109f18d4dbdfe76c8cb7aae41ba0e2
SHA256

71d534030e59b5c0de6f4e85b9fe9c90917f66f4cffc3ed5b8549c991f5c1c76
SHA512

ff1d1c3fd0360fd3fa75b2b2b70af3436b218c3d5eeffc02dbe70bfdd22f5f967b0571b8766cf396af0b3d0becc8f7492a0a84bff89e388335957f30e03acda5
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0N:jDgtfRQUHPw06MoV2nwTBlhm8F

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 4856 wrote to memory of 4808	4856	rundll32.exe	86
PID 4856 wrote to memory of 4808	4856	rundll32.exe	86
PID 4856 wrote to memory of 4808	4856	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\71d534030e59b5c0de6f4e85b9fe9c90917f66f4cffc3ed5b8549c991f5c1c76.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4856
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\71d534030e59b5c0de6f4e85b9fe9c90917f66f4cffc3ed5b8549c991f5c1c76.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4808

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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