Overview

overview

10

Static

static

3

Solara Installer.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    99s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-07-2024 16:58

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General

  • Target

    Solara Installer.exe

  • Size

    163KB

  • MD5

    108810ab0abf1818950ea0392fcfd9e7

  • SHA1

    8dbe14ee0badaf014465e714b98475262636d2a7

  • SHA256

    22cc3e6bfe946ed84d2b7b3cf7e3a51a3c574fa07cb97240d5cd6685fe5d1825

  • SHA512

    5165572bf6334c724205c5d1c1d0696b2b27018c802a17809a1e03abec926d7deed92aa1e91dea2b3c61c0b64e5317549ffaee26869ca1e9e33a525b5ffb2bf6

  • SSDEEP

    3072:CBMv3nuxy5Spr4FjyHdmlyhAlJuVTHUv8HyJ7hfgGbbp9TRZWZvzX:iCXu45qcFj4I2AlJ6THUv8Hyb4kbDF41

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

ChuWaWa Rat 5.2

Botnet

Default

C2

31.173.170.243:7777

31.173.170.243:45080

stores-less.gl.at.ply.gg:7777

stores-less.gl.at.ply.gg:45080
Mutex

AtomRatMutex_penka

Attributes
  • delay

    1

  • install

    true

  • install_file

    RuntimeBroker.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Solara Installer.exe
    "C:\Users\Admin\AppData\Local\Temp\Solara Installer.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2536
    • C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe
      "C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4268
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Checks processor information in registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1752
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1352

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe
      Filesize

      63KB

      MD5

      3b369d802dd1bcbb9581d2b291845bee

      SHA1

      9536c94f31e4bd44eda47137a21d4f2a9576505a

      SHA256

      595d23b3fc8264dd990d995b23879b187fc2934cbfbb472c4dd0fefac1b0018e

      SHA512

      e7d03c9afee1f805d86ae846ace15d8c6501ecd94c1e1890e28e847c7242f6150a7296d6bb70623a2469e1831c10129836f045239270cb20441620a9765d1689

      Download Submit

    • memory/1752-24-0x000001FC0EAF0000-0x000001FC0EAF1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1752-14-0x000001FC0EAF0000-0x000001FC0EAF1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1752-15-0x000001FC0EAF0000-0x000001FC0EAF1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1752-16-0x000001FC0EAF0000-0x000001FC0EAF1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1752-26-0x000001FC0EAF0000-0x000001FC0EAF1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1752-25-0x000001FC0EAF0000-0x000001FC0EAF1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1752-23-0x000001FC0EAF0000-0x000001FC0EAF1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1752-22-0x000001FC0EAF0000-0x000001FC0EAF1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1752-21-0x000001FC0EAF0000-0x000001FC0EAF1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1752-20-0x000001FC0EAF0000-0x000001FC0EAF1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2536-11-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

      Download

    • memory/4268-13-0x00007FFCBFA13000-0x00007FFCBFA15000-memory.dmp

      Filesize

      8KB

      Download

    • memory/4268-12-0x000002BB2A560000-0x000002BB2A576000-memory.dmp

      Filesize

      88KB

      Download