539a2382b28d0224b3147bc1dd0ac6735909247af72823db013ab6bbb88e8eac

Analysis

max time kernel
0s
max time network
0s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
05-01-2024 10:53

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General

Target

437f5aae48a0d83fa74333acbb591adc.exe
Size

16KB
MD5

437f5aae48a0d83fa74333acbb591adc
SHA1

ca0ef624595be1cf798a1ac3aadca0d4a1307325
SHA256

539a2382b28d0224b3147bc1dd0ac6735909247af72823db013ab6bbb88e8eac
SHA512

564f769d8dfcc8caeda7fde09b0160f1ac6bc6b177f12904b9ac55aa813fcff09a4184e9508b13461806466c1e17cfb296d807833141fbd8e04e8470c330de27
SSDEEP

384:uE5rGm0VVRKTfSNLv1Q9EP+WW9sr79z+dSuFKiK:JtGm0vRKzGL1Q9g+WwsrsdSu5K

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2536	437f5aae48a0d83fa74333acbb591adc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RUN\PTSShell = "C:\\Windows\\PTSShell.exe"	437f5aae48a0d83fa74333acbb591adc.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\PTSShell.dll	437f5aae48a0d83fa74333acbb591adc.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\PTSShell.exe	437f5aae48a0d83fa74333acbb591adc.exe
File opened for modification	C:\Windows\PTSShell.exe	437f5aae48a0d83fa74333acbb591adc.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2536	437f5aae48a0d83fa74333acbb591adc.exe
2536	437f5aae48a0d83fa74333acbb591adc.exe
2536	437f5aae48a0d83fa74333acbb591adc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2536	437f5aae48a0d83fa74333acbb591adc.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 1196	2536	437f5aae48a0d83fa74333acbb591adc.exe	6
PID 2536 wrote to memory of 1196	2536	437f5aae48a0d83fa74333acbb591adc.exe	6

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1196
- C:\Users\Admin\AppData\Local\Temp\437f5aae48a0d83fa74333acbb591adc.exe
  "C:\Users\Admin\AppData\Local\Temp\437f5aae48a0d83fa74333acbb591adc.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1196-2-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/2536-10-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/2536-11-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download