yunsip | a2c15bceb7047663096edd77edd69b39397526389e2905f12d9765fed8f71b39

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
25-07-2024 00:51

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General

Target

LisectAVT_2403002B_107.dll
Size

1.0MB
MD5

d8b483da170c4af0e00cdd8ab2d4c9fa
SHA1

f4779848b4aaf1610d64d503128558872e111298
SHA256

a2c15bceb7047663096edd77edd69b39397526389e2905f12d9765fed8f71b39
SHA512

e3c5927e060962ba044502bb1d894ef051547b3e2c738e519b2dd94e6f903eaa8b19f95395e80b29748e996b51cfbb5947aa287364f4c93cfd40ebbb69ec578a
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYY:o6RI1Fo/wT3cJYYYYYYYYYYYY

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 2756	2728	rundll32.exe	30
PID 2728 wrote to memory of 2756	2728	rundll32.exe	30
PID 2728 wrote to memory of 2756	2728	rundll32.exe	30
PID 2728 wrote to memory of 2756	2728	rundll32.exe	30
PID 2728 wrote to memory of 2756	2728	rundll32.exe	30
PID 2728 wrote to memory of 2756	2728	rundll32.exe	30
PID 2728 wrote to memory of 2756	2728	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\LisectAVT_2403002B_107.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\LisectAVT_2403002B_107.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2756

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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