yunsip | eaf57aa6b41f9a60fdd895f2644caea7e9302dfa02ebdc37cb4a1c899c0de13b

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
15-08-2024 03:16

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General

Target

7186fa089eb50c5981ff441de4bb0280N.dll
Size

695KB
MD5

7186fa089eb50c5981ff441de4bb0280
SHA1

f7ba7b138c613b07995716de218d53877df533ab
SHA256

eaf57aa6b41f9a60fdd895f2644caea7e9302dfa02ebdc37cb4a1c899c0de13b
SHA512

267f9552effe2364fa123d96b517ec3827250f5012ae1fee36bf7ef64d587739f2577e3b7cf829e281b3c8a17246f6ca5fa989f855f2acb96185be2b62010ded
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYn:o6RI1Fo/wT3cJYYYYYYYYYYYYn

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 2536 wrote to memory of 2124	2536	rundll32.exe	rundll32.exe
PID 2536 wrote to memory of 2124	2536	rundll32.exe	rundll32.exe
PID 2536 wrote to memory of 2124	2536	rundll32.exe	rundll32.exe
PID 2536 wrote to memory of 2124	2536	rundll32.exe	rundll32.exe
PID 2536 wrote to memory of 2124	2536	rundll32.exe	rundll32.exe
PID 2536 wrote to memory of 2124	2536	rundll32.exe	rundll32.exe
PID 2536 wrote to memory of 2124	2536	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7186fa089eb50c5981ff441de4bb0280N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2536

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7186fa089eb50c5981ff441de4bb0280N.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:2124

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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