yunsip | 87c949a1766859a8d5a3100357439285e4023a3f96253f8d225ef9f3ba2821a2

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02/01/2025, 06:44

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General

Target
87c949a1766859a8d5a3100357439285e4023a3f96253f8d225ef9f3ba2821a2N.dll
Size 767KB
Sample250102-hhm54symcw
SHA256 87c949a1766859a8d5a3100357439285e4023a3f96253f8d225ef9f3ba2821a2
MD5 9eb5e20410221fb1169dbed527c29100
SHA1 3beaa7221c81db501e3cab0a1b74cb82015619a1
SHA512 9f831ed533f4ee8f6dc0af79b66c55247c12010f168bc4eb58add97cdc5ae1c52d7fb70668a6479946b2e3931aaf56c7900a673dec8c0795657d99fd2a0e93da
SSDEEP 3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q00:jDgtfRQUHPw06MoV2nwTBlhm8c
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 1200 wrote to memory of 2784	1200	rundll32.exe	84
PID 1200 wrote to memory of 2784	1200	rundll32.exe	84
PID 1200 wrote to memory of 2784	1200	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\87c949a1766859a8d5a3100357439285e4023a3f96253f8d225ef9f3ba2821a2N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\87c949a1766859a8d5a3100357439285e4023a3f96253f8d225ef9f3ba2821a2N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2784

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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