yunsip | 37eb0a8cdac8124adac82bbd7c6331b36db3bc46c510fe8cea74451666c5231a

Analysis

max time kernel
15s
max time network
16s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
04-08-2024 17:09

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General

Target

f4f2fb1616b7ac5d4de49aca70972c10N.dll
Size

1.0MB
MD5

f4f2fb1616b7ac5d4de49aca70972c10
SHA1

431977ae9b1060311e78f935d3c4266ba1eb4f7f
SHA256

37eb0a8cdac8124adac82bbd7c6331b36db3bc46c510fe8cea74451666c5231a
SHA512

16cc66c90bfa3567f8a606077bf713473548204f5bb7f16c757773fceb3fbd075452bf478b2b01d3c7b16a61d7fb1c74be044b4bb6e9ab39ca67aac017c53da1
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYY6:o6RI1Fo/wT3cJYYYYYYYYYYYY6

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

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 2212 wrote to memory of 2004	2212	rundll32.exe	30
PID 2212 wrote to memory of 2004	2212	rundll32.exe	30
PID 2212 wrote to memory of 2004	2212	rundll32.exe	30
PID 2212 wrote to memory of 2004	2212	rundll32.exe	30
PID 2212 wrote to memory of 2004	2212	rundll32.exe	30
PID 2212 wrote to memory of 2004	2212	rundll32.exe	30
PID 2212 wrote to memory of 2004	2212	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f4f2fb1616b7ac5d4de49aca70972c10N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f4f2fb1616b7ac5d4de49aca70972c10N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2004

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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