yunsip | e666aa38625131567cd141b3bde7b411d740314be564d76c85b1eaa5d2b13b7c

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-01-2025 21:20

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General

Target

e666aa38625131567cd141b3bde7b411d740314be564d76c85b1eaa5d2b13b7c.dll
Size

757KB
MD5

091709fa1d091f560982baf00ef114b0
SHA1

7032325993d4e5659a591884b1a853e86cf9a7b7
SHA256

e666aa38625131567cd141b3bde7b411d740314be564d76c85b1eaa5d2b13b7c
SHA512

852b1c6282c3ecac6810848e35046e3dddf982261ce9871503f4c83e284dea1357614e6b12ac82561435b41ece5519ba6e6125cfb4686035b663074add1ca5da
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYc:o6RI1Fo/wT3cJYYYYYYYYYYYYc

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

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

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2552 wrote to memory of 788	2552	rundll32.exe	30
PID 2552 wrote to memory of 788	2552	rundll32.exe	30
PID 2552 wrote to memory of 788	2552	rundll32.exe	30
PID 2552 wrote to memory of 788	2552	rundll32.exe	30
PID 2552 wrote to memory of 788	2552	rundll32.exe	30
PID 2552 wrote to memory of 788	2552	rundll32.exe	30
PID 2552 wrote to memory of 788	2552	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e666aa38625131567cd141b3bde7b411d740314be564d76c85b1eaa5d2b13b7c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e666aa38625131567cd141b3bde7b411d740314be564d76c85b1eaa5d2b13b7c.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:788

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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