yunsip | e3c21f4f82fbd60892d13ebc3407630d7beeb037ce1801aa1ad912a8f1c33206

Analysis

max time kernel
17s
max time network
17s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
26-07-2024 07:53

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General

Target

a49c7e19c16c560cff02d319a33f9380N.dll
Size

545KB
MD5

a49c7e19c16c560cff02d319a33f9380
SHA1

9a4203f07de8fe027504cb34b598fde6f27abed4
SHA256

e3c21f4f82fbd60892d13ebc3407630d7beeb037ce1801aa1ad912a8f1c33206
SHA512

2d94d30647347421b4b0047ae7ff63cf5172b2fcf9c37bbe22a5e5384985e2abff7549bf740b325243dcc6960ce3781de69ffe555becd99a99a0eb9e85fbdb45
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0/:jDgtfRQUHPw06MoV2nwTBlhm8H

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 2392 wrote to memory of 1960	2392	rundll32.exe	30
PID 2392 wrote to memory of 1960	2392	rundll32.exe	30
PID 2392 wrote to memory of 1960	2392	rundll32.exe	30
PID 2392 wrote to memory of 1960	2392	rundll32.exe	30
PID 2392 wrote to memory of 1960	2392	rundll32.exe	30
PID 2392 wrote to memory of 1960	2392	rundll32.exe	30
PID 2392 wrote to memory of 1960	2392	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a49c7e19c16c560cff02d319a33f9380N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2392
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a49c7e19c16c560cff02d319a33f9380N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1960

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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