yunsip | 0b1f3992f85b3eae6e1dbd8b4a06f9f1a764060b9806f284928df640908acb7f

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-11-2024 05:24

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General

Target

0b1f3992f85b3eae6e1dbd8b4a06f9f1a764060b9806f284928df640908acb7fN.dll
Size

1.8MB
MD5

a33427d1dd7d648a45b12f25853a9370
SHA1

842748f354661c8efba4f04f8d931940166d1681
SHA256

0b1f3992f85b3eae6e1dbd8b4a06f9f1a764060b9806f284928df640908acb7f
SHA512

3216049671f55259cc96ae1f3f6543b0728a200d82b03cb0cb8401a3cf605aec41ef9c19da3ed77fc922a5c31b1454abad182101e29749df9d5260d06863ed90
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0CIoIoIoIoIoIoIoIoIx:jDgtfRQUHPw06MoV2nwTBlhm87

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

Processes:

rundll32.exe

description ioc process

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

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

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1736 wrote to memory of 2680	1736	rundll32.exe	rundll32.exe
PID 1736 wrote to memory of 2680	1736	rundll32.exe	rundll32.exe
PID 1736 wrote to memory of 2680	1736	rundll32.exe	rundll32.exe
PID 1736 wrote to memory of 2680	1736	rundll32.exe	rundll32.exe
PID 1736 wrote to memory of 2680	1736	rundll32.exe	rundll32.exe
PID 1736 wrote to memory of 2680	1736	rundll32.exe	rundll32.exe
PID 1736 wrote to memory of 2680	1736	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0b1f3992f85b3eae6e1dbd8b4a06f9f1a764060b9806f284928df640908acb7fN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0b1f3992f85b3eae6e1dbd8b4a06f9f1a764060b9806f284928df640908acb7fN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2680

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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