yunsip | 0aa92ab5d98196717573c7e6eae000bf316fe3f2c276561e7b45772aa8230d33

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
17-08-2024 04:52

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General

Target

513902e20ce6e1241c81091c066778d0N.dll
Size

1.2MB
MD5

513902e20ce6e1241c81091c066778d0
SHA1

4379dfae7e09ee0938aef9df2810e236d78e11cf
SHA256

0aa92ab5d98196717573c7e6eae000bf316fe3f2c276561e7b45772aa8230d33
SHA512

0406576841befb02d8e4b2a42675cb8879a491ee41b749e047661a7e8cfc880ab1253b4580e6db7884926b6aadc40824ba46db3c01f91c3118c2c9eeb0577848
SSDEEP

12288:jDgN6MoIwT3qOOOOOOOOOOOOOOOOOOOOOOE:jTtT3qOOOOOOOOOOOOOOOOOOOOOOE

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
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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2312 wrote to memory of 2456	2312	rundll32.exe	rundll32.exe
PID 2312 wrote to memory of 2456	2312	rundll32.exe	rundll32.exe
PID 2312 wrote to memory of 2456	2312	rundll32.exe	rundll32.exe
PID 2312 wrote to memory of 2456	2312	rundll32.exe	rundll32.exe
PID 2312 wrote to memory of 2456	2312	rundll32.exe	rundll32.exe
PID 2312 wrote to memory of 2456	2312	rundll32.exe	rundll32.exe
PID 2312 wrote to memory of 2456	2312	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\513902e20ce6e1241c81091c066778d0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2312

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\513902e20ce6e1241c81091c066778d0N.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:2456

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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