yunsip | b7699ac279a66795ed30225116e78a8ff344276639c0ccb13cc2c4d8d2579409

Analysis

max time kernel
107s
max time network
96s
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, 03:01

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General

Target

b7699ac279a66795ed30225116e78a8ff344276639c0ccb13cc2c4d8d2579409N.dll
Size

526KB
MD5

1b4835862c160ba8a93a0a0dae238680
SHA1

59b4156a4e8149c5aa68636f4e15d6e9740a9320
SHA256

b7699ac279a66795ed30225116e78a8ff344276639c0ccb13cc2c4d8d2579409
SHA512

cc3e9a848e1eab1f62c1d8352ddc491c78bfefd1b7c53791103ac57d5b281aa2de92d3eaba72b6a533ca2d449406530ed966e3f255c253ecf64c8d2757d1fc13
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0d:jDgtfRQUHPw06MoV2nwTBlhm8V

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 4580 wrote to memory of 1704	4580	rundll32.exe	86
PID 4580 wrote to memory of 1704	4580	rundll32.exe	86
PID 4580 wrote to memory of 1704	4580	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7699ac279a66795ed30225116e78a8ff344276639c0ccb13cc2c4d8d2579409N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4580
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7699ac279a66795ed30225116e78a8ff344276639c0ccb13cc2c4d8d2579409N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1704

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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