yunsip | 4d9c9c354cad4b1e380ff846477b0378880257f6827d0715c5a7d8416b34f5a3

Analysis

max time kernel
14s
max time network
19s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
27-07-2024 11:13

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General

Target

bb94b74960e3ca2f436df2f0fcdfbee0N.dll
Size

814KB
MD5

bb94b74960e3ca2f436df2f0fcdfbee0
SHA1

ec7c586549d718080bd0de3acfa692fc11b7d267
SHA256

4d9c9c354cad4b1e380ff846477b0378880257f6827d0715c5a7d8416b34f5a3
SHA512

40b94c39ede3166a06ab6cb9d9eb740cf7cd09c8062fa30c6fc4c8cad5a72eeab8697536a4ae5e88dfb7736485f1354e21961241bb8d458193c00934b97ffad6
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYq:o6RI1Fo/wT3cJYYYYYYYYYYYYq

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 2036 wrote to memory of 2056	2036	rundll32.exe	rundll32.exe
PID 2036 wrote to memory of 2056	2036	rundll32.exe	rundll32.exe
PID 2036 wrote to memory of 2056	2036	rundll32.exe	rundll32.exe
PID 2036 wrote to memory of 2056	2036	rundll32.exe	rundll32.exe
PID 2036 wrote to memory of 2056	2036	rundll32.exe	rundll32.exe
PID 2036 wrote to memory of 2056	2036	rundll32.exe	rundll32.exe
PID 2036 wrote to memory of 2056	2036	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb94b74960e3ca2f436df2f0fcdfbee0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2036

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb94b74960e3ca2f436df2f0fcdfbee0N.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:2056

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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