yunsip | f0b1929ee77680c90789da6c8ecaf5f98a2f95bd4303080d248cef5b8d9ba828

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-10-2024 06:33

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General

Target

f0b1929ee77680c90789da6c8ecaf5f98a2f95bd4303080d248cef5b8d9ba828.dll
Size

714KB
MD5

18c1b1fc23fafe8bc5668e50fc292a1d
SHA1

afed9fc9ad5ff18d43681a67bd32042594223b83
SHA256

f0b1929ee77680c90789da6c8ecaf5f98a2f95bd4303080d248cef5b8d9ba828
SHA512

9bf685a36ac0aaad36d213dc1d9887b8a07c6bfd73768117be864218b725a7af1bffafa527f2b73956dea109e5afc5ce6ab39345cdd919d208992fbd98b766ba
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYG:o6RI1Fo/wT3cJYYYYYYYYYYYYG

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

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 1968 wrote to memory of 2696	1968	rundll32.exe	30
PID 1968 wrote to memory of 2696	1968	rundll32.exe	30
PID 1968 wrote to memory of 2696	1968	rundll32.exe	30
PID 1968 wrote to memory of 2696	1968	rundll32.exe	30
PID 1968 wrote to memory of 2696	1968	rundll32.exe	30
PID 1968 wrote to memory of 2696	1968	rundll32.exe	30
PID 1968 wrote to memory of 2696	1968	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f0b1929ee77680c90789da6c8ecaf5f98a2f95bd4303080d248cef5b8d9ba828.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f0b1929ee77680c90789da6c8ecaf5f98a2f95bd4303080d248cef5b8d9ba828.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2696

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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