yunsip | 1f10523e913aceb113c857588e11c48e050739f486255a3a70b9d6a68e9b451d

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/02/2025, 21:07

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General

Target

1f10523e913aceb113c857588e11c48e050739f486255a3a70b9d6a68e9b451d.dll
Size

762KB
MD5

8dab9e4bfbf4d7d0e1db0cd2513286c4
SHA1

286f1766443c7809fe3b36e3884486c344d18590
SHA256

1f10523e913aceb113c857588e11c48e050739f486255a3a70b9d6a68e9b451d
SHA512

2e5f06811be77ff340dab9f3e00ecffa2ae711059bf3d91e3197d505ed789243561be8307c29363547f1f8fe49d1a213432ca9f741cfe9e33fa40500f43188ce
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0P:jDgtfRQUHPw06MoV2nwTBlhm8n

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 2576 wrote to memory of 1888	2576	rundll32.exe	30
PID 2576 wrote to memory of 1888	2576	rundll32.exe	30
PID 2576 wrote to memory of 1888	2576	rundll32.exe	30
PID 2576 wrote to memory of 1888	2576	rundll32.exe	30
PID 2576 wrote to memory of 1888	2576	rundll32.exe	30
PID 2576 wrote to memory of 1888	2576	rundll32.exe	30
PID 2576 wrote to memory of 1888	2576	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f10523e913aceb113c857588e11c48e050739f486255a3a70b9d6a68e9b451d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2576
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f10523e913aceb113c857588e11c48e050739f486255a3a70b9d6a68e9b451d.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1888

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

Windows 7 deprecation

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