yunsip | 28393a10ff914acf1f2ee5ce0ac02d56e9c394c59a0dea554eeafe3483341209

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
26-08-2024 06:00

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General

Target

a875e564af887b19ca82d54c8ff2b390N.dll
Size

747KB
MD5

a875e564af887b19ca82d54c8ff2b390
SHA1

4a4fd864e5bc13d1161ceb911aef8a49f71324e8
SHA256

28393a10ff914acf1f2ee5ce0ac02d56e9c394c59a0dea554eeafe3483341209
SHA512

0748b5fb4ad1d651979a9412bd4ff4499ecd9a3a32e96112cb33bf6d18bef0c7eaa3f0c6951a95c264ec57fa2033be6d69ab2c8981f36af71c5ff4102d346e23
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYY3:o6RI1Fo/wT3cJYYYYYYYYYYYY3

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 2728 wrote to memory of 2152	2728	rundll32.exe	30
PID 2728 wrote to memory of 2152	2728	rundll32.exe	30
PID 2728 wrote to memory of 2152	2728	rundll32.exe	30
PID 2728 wrote to memory of 2152	2728	rundll32.exe	30
PID 2728 wrote to memory of 2152	2728	rundll32.exe	30
PID 2728 wrote to memory of 2152	2728	rundll32.exe	30
PID 2728 wrote to memory of 2152	2728	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a875e564af887b19ca82d54c8ff2b390N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a875e564af887b19ca82d54c8ff2b390N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2152

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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