yunsip | 7db9994078e5b84ab08ac964230fe4d603d0317e7cbb517878ec3fba1c43f09a

Analysis

max time kernel
14s
max time network
18s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
17-08-2024 02:45

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General

Target

cfcde4bdbbb0f23df9da9cc80b621dc0N.dll
Size

1.0MB
MD5

cfcde4bdbbb0f23df9da9cc80b621dc0
SHA1

5a9ed303294e1aca73419fe128944656b22e143d
SHA256

7db9994078e5b84ab08ac964230fe4d603d0317e7cbb517878ec3fba1c43f09a
SHA512

a0d3aa4027765c343752a13638ad36deb694a20ee3526cf32871988ebaf2c79b670304ec8fccd44240733b95c0058e72322300334561ab0f50af56e316e47bc7
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYY6:o6RI1Fo/wT3cJYYYYYYYYYYYY6

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 2448 wrote to memory of 2444	2448	rundll32.exe	rundll32.exe
PID 2448 wrote to memory of 2444	2448	rundll32.exe	rundll32.exe
PID 2448 wrote to memory of 2444	2448	rundll32.exe	rundll32.exe
PID 2448 wrote to memory of 2444	2448	rundll32.exe	rundll32.exe
PID 2448 wrote to memory of 2444	2448	rundll32.exe	rundll32.exe
PID 2448 wrote to memory of 2444	2448	rundll32.exe	rundll32.exe
PID 2448 wrote to memory of 2444	2448	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cfcde4bdbbb0f23df9da9cc80b621dc0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2448

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cfcde4bdbbb0f23df9da9cc80b621dc0N.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:2444

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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