yunsip | cb2c80bfb66a777180d49e7f7492f8c601f2186dec7e75d39ab9eb7db40ff03b

Analysis

max time kernel
15s
max time network
20s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
24/02/2025, 21:44

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General

Target

cb2c80bfb66a777180d49e7f7492f8c601f2186dec7e75d39ab9eb7db40ff03b.dll
Size

752KB
MD5

18d0fc677b4e929bd6c9e0742ca5405b
SHA1

f07120805e6c73e7b64d63a5a36dfd1dd859bbee
SHA256

cb2c80bfb66a777180d49e7f7492f8c601f2186dec7e75d39ab9eb7db40ff03b
SHA512

fb3739a05d9b45344ff9b819238003b7bdc776c1455caad43a21fa3c81ab54ed85446822e5a8235c4b3612ac385e7b90e69cfb65b628dd196189a6b34e01d6a6
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
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 1612 wrote to memory of 1452	1612	rundll32.exe	30
PID 1612 wrote to memory of 1452	1612	rundll32.exe	30
PID 1612 wrote to memory of 1452	1612	rundll32.exe	30
PID 1612 wrote to memory of 1452	1612	rundll32.exe	30
PID 1612 wrote to memory of 1452	1612	rundll32.exe	30
PID 1612 wrote to memory of 1452	1612	rundll32.exe	30
PID 1612 wrote to memory of 1452	1612	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cb2c80bfb66a777180d49e7f7492f8c601f2186dec7e75d39ab9eb7db40ff03b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1612
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\cb2c80bfb66a777180d49e7f7492f8c601f2186dec7e75d39ab9eb7db40ff03b.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1452

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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