yunsip | c9768d2a872fd687ee24681b8395d9f1db3501d8ca30735dfab0960cd150e87a

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-10-2024 20:41

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General

Target

c9768d2a872fd687ee24681b8395d9f1db3501d8ca30735dfab0960cd150e87aN.dll
Size

980KB
MD5

41061a84468dca5e596c0312964a82f0
SHA1

e0e1c81b21fb85f3a975791519b5839b045e344a
SHA256

c9768d2a872fd687ee24681b8395d9f1db3501d8ca30735dfab0960cd150e87a
SHA512

27799166b711f5bcb760179ec2f787339edac6486e1203f3b0e0aadcedfc0695406c4f3609471b25a24963d663623b4fab423c4245365fd4859181ce6d1f78e3
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYY2jjjjjjjjjjjjjjjjjjjjjjS:o6RI1Fo/wT3cJYYYYYYYYYYYY1

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

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 2308 wrote to memory of 2708	2308	rundll32.exe	rundll32.exe
PID 2308 wrote to memory of 2708	2308	rundll32.exe	rundll32.exe
PID 2308 wrote to memory of 2708	2308	rundll32.exe	rundll32.exe
PID 2308 wrote to memory of 2708	2308	rundll32.exe	rundll32.exe
PID 2308 wrote to memory of 2708	2308	rundll32.exe	rundll32.exe
PID 2308 wrote to memory of 2708	2308	rundll32.exe	rundll32.exe
PID 2308 wrote to memory of 2708	2308	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c9768d2a872fd687ee24681b8395d9f1db3501d8ca30735dfab0960cd150e87aN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c9768d2a872fd687ee24681b8395d9f1db3501d8ca30735dfab0960cd150e87aN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2708

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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