yunsip | 225879df8a27d98f7d8d767d6655794f573b78e2a2c822d90a116a2c55133cf2

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-01-2025 04:29

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General

Target

225879df8a27d98f7d8d767d6655794f573b78e2a2c822d90a116a2c55133cf2N.dll
Size

757KB
MD5

d33a12881f38b17ce66700547c3d4bb0
SHA1

b33aa1c3d3c036bebb9d1c26bcbfe0c87f38437e
SHA256

225879df8a27d98f7d8d767d6655794f573b78e2a2c822d90a116a2c55133cf2
SHA512

393fd8b81960368f11496ff6a0439563a3f39a7d1a1888b4691b1a380d541c35e5538af6183fb50fd405c0d6069e16b15e5219d1fa302f9cd289cd8e3d90223a
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYE:o6RI1Fo/wT3cJYYYYYYYYYYYYE

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 2652 wrote to memory of 2704	2652	rundll32.exe	30
PID 2652 wrote to memory of 2704	2652	rundll32.exe	30
PID 2652 wrote to memory of 2704	2652	rundll32.exe	30
PID 2652 wrote to memory of 2704	2652	rundll32.exe	30
PID 2652 wrote to memory of 2704	2652	rundll32.exe	30
PID 2652 wrote to memory of 2704	2652	rundll32.exe	30
PID 2652 wrote to memory of 2704	2652	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\225879df8a27d98f7d8d767d6655794f573b78e2a2c822d90a116a2c55133cf2N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\225879df8a27d98f7d8d767d6655794f573b78e2a2c822d90a116a2c55133cf2N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704

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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