yunsip | f42022431f2d5d24e2a64ba2ea3c062588a19f9381b424565d94b59d84e98eb2

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
20-02-2025 09:42

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General

Target

f42022431f2d5d24e2a64ba2ea3c062588a19f9381b424565d94b59d84e98eb2.dll
Size

676KB
MD5

9709bf4f48c7dff09a8e32d70140b20f
SHA1

ccd88bf5e4e5caa85f22db9821b38419d896da8e
SHA256

f42022431f2d5d24e2a64ba2ea3c062588a19f9381b424565d94b59d84e98eb2
SHA512

edb08712c5b05a3fc3aa7331007c35b3db2c8e6d0d4ba1b877f23610bf49cced0f43cb4b2d7331d803d98de7c008f637e0f820bc057f56d629c175f7447da985
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYY/:o6RI1Fo/wT3cJYYYYYYYYYYYY/

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 2124 wrote to memory of 2108	2124	rundll32.exe	29
PID 2124 wrote to memory of 2108	2124	rundll32.exe	29
PID 2124 wrote to memory of 2108	2124	rundll32.exe	29
PID 2124 wrote to memory of 2108	2124	rundll32.exe	29
PID 2124 wrote to memory of 2108	2124	rundll32.exe	29
PID 2124 wrote to memory of 2108	2124	rundll32.exe	29
PID 2124 wrote to memory of 2108	2124	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f42022431f2d5d24e2a64ba2ea3c062588a19f9381b424565d94b59d84e98eb2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f42022431f2d5d24e2a64ba2ea3c062588a19f9381b424565d94b59d84e98eb2.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2108

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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