Analysis

  • max time kernel
    140s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    20-12-2024 14:35

General

  • Target

    PureRcsAdvTokenGrabbernls..scr

  • Size

    3.0MB

  • MD5

    29ee9836013142f0f63c6813944c7021

  • SHA1

    90781c0a4d3fe85d1582eb1ca4c5aa910ee85b78

  • SHA256

    7382071535d0b83a8ee62e72c29e8f42d433b29238c4c86cfba7c4de4d6ad6b1

  • SHA512

    482d95357c48dbe380b90980a626fc04446de10e83e31dfbe850de94942091b86f01b83c2efe4517b887b8c288b0689e64809f5ad174deca759eeb9594d2e47e

  • SSDEEP

    49152:oXWsTEkwghTKv4jysGUqgCoOtt1JKLBuhFapNyPn7MU4HcOL:oXFEkwghTKv4jysGUqgCxttiBmas7+8

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

MetaMask

C2

51.103.217.70:6677

Mutex

MetaMask

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

asyncrat

Version

| CRACKED BY https://t.me/xworm_v2

Botnet

Google Chrome

C2

51.103.217.70:8585

Mutex

Google Chrome

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

asyncrat

Version

| CRACKED BY https://t.me/xworm_v2

Botnet

Windows Defender

C2

51.103.217.70:8585

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Expoler

C2

51.103.217.70:6677

Mutex

Expoler

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • Drops startup file 1 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 6 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Using powershell.exe command.

  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 13 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PureRcsAdvTokenGrabbernls..scr
    "C:\Users\Admin\AppData\Local\Temp\PureRcsAdvTokenGrabbernls..scr" /S
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Users\Admin\AppData\Local\Temp\EDGE.EXE
      "C:\Users\Admin\AppData\Local\Temp\EDGE.EXE"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2604
      • C:\Users\Admin\AppData\Local\Temp\EDGE.EXE
        "C:\Users\Admin\AppData\Local\Temp\EDGE.EXE"
        3⤵
        • Executes dropped EXE
        PID:2812
      • C:\Users\Admin\AppData\Local\Temp\EDGE.EXE
        "C:\Users\Admin\AppData\Local\Temp\EDGE.EXE"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2952
    • C:\Users\Admin\AppData\Local\Temp\GOOGLE CHROME.EXE
      "C:\Users\Admin\AppData\Local\Temp\GOOGLE CHROME.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1708
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Remove -ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'Google Chrome';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'Google Chrome' -Value '"C:\Users\Admin\AppData\Roaming\Google Chrome\Google Chrome.exe"' -PropertyType 'String'
        3⤵
        • Adds Run key to start application
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2932
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        #cmd
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2688
    • C:\Users\Admin\AppData\Local\Temp\METAMASK.EXE
      "C:\Users\Admin\AppData\Local\Temp\METAMASK.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2168
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Remove -ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'MetaMask';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'MetaMask' -Value '"C:\Users\Admin\AppData\Roaming\MetaMask\MetaMask.exe"' -PropertyType 'String'
        3⤵
        • Adds Run key to start application
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2512
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        #cmd
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2680
    • C:\Users\Admin\AppData\Local\Temp\RUNING.EXE
      "C:\Users\Admin\AppData\Local\Temp\RUNING.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:584
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Remove -ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'Runing';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'Runing' -Value '"C:\Users\Admin\AppData\Roaming\Runing\Runing.exe"' -PropertyType 'String'
        3⤵
        • Adds Run key to start application
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1264
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        #cmd
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2696
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1764

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    eb867da4fd2e691aba1a5e469f7731a3

    SHA1

    d19efd624104363491e10d8089ee2caae0a47869

    SHA256

    ebb3de95f0a8a2cc1b58efe9093ac33de693266b3ec9fe7d5a85212dd4a2ee50

    SHA512

    3ef13eacd49370fb929480c516db9f0be2b41e5b0a812e22beeba093da2f10e42749e70e2887411336d0de474fb12ebb269989888c54a9db8c6c6d0c3e1aac14

  • \Users\Admin\AppData\Local\Temp\EDGE.EXE

    Filesize

    2.6MB

    MD5

    7820977c8b4d71e342f1a9500c1c631d

    SHA1

    d7e474fbe898efce9d91fa0efe8d9c5819377ad8

    SHA256

    b7a375b496836bdb609b2ad063a8909dd3f35e045a6e75f951d3d7f5d224c945

    SHA512

    ec4060c357f2b690b93ae27e6b9662cb50ee4149964418d6fb957fc9f613909cc01fe50a133d737057ff540335dd6979f2cef383df534fef07c60ba0b2d10713

  • \Users\Admin\AppData\Local\Temp\GOOGLE CHROME.EXE

    Filesize

    79KB

    MD5

    a19ec34df640568c43c292a89c383ee1

    SHA1

    23753f88ff613085e363fed6246a3b08a78bf1df

    SHA256

    9b4298ad3fef1f609e9c34fa9471fc2b76bd6f5542823b66ace638b8c2edb079

    SHA512

    735f633aa99b70b486b895421841c5b7dd88e475e8c7e120d9b4054fad0989a23c61c13519a10fca9b575ec92949f7475065af34983606f4ba551e82b76e3f91

  • \Users\Admin\AppData\Local\Temp\METAMASK.EXE

    Filesize

    79KB

    MD5

    fa838d62246223fa79f7a7358691584c

    SHA1

    23d6f3ae392937a6c28d2159cc816dc5ee96d82a

    SHA256

    24e0ae5106103bb66889229dd18b796f4923727093113ca289c7039189bda19c

    SHA512

    b9a2ad7eb1f415f492e68fab97b302cd56e6ac1f0f4523a46078b8fbd5d22ac2178b9d5968a0abe9fb3855ac33ef26421b760dbdfb962343cbd291fa6a2a4b8c

  • \Users\Admin\AppData\Local\Temp\RUNING.EXE

    Filesize

    189KB

    MD5

    31c7b3f88bae3c9072ceb9c78cef1281

    SHA1

    43a5bd5efc6d7d91ccd41041f4532ad7813c5a57

    SHA256

    9dd3d01dc695d1e89ee6b31df506edb50d986bfae0f9082f945d0d802901cc24

    SHA512

    a9273ef41c7f4677bd6c2d328bd47cc57219eb36c04d96acc10c4da16d3525183fe2ba08ff91a7067a50d8be5623240ca3d09fc645576b4b1dedd16277ebadf9

  • memory/584-30-0x0000000001160000-0x0000000001196000-memory.dmp

    Filesize

    216KB

  • memory/1708-31-0x0000000000AA0000-0x0000000000ABA000-memory.dmp

    Filesize

    104KB

  • memory/1764-117-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1764-112-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1764-110-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1764-114-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1764-116-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/1764-118-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1764-119-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2168-29-0x0000000000050000-0x000000000006A000-memory.dmp

    Filesize

    104KB

  • memory/2604-32-0x00000000008C0000-0x0000000000B5E000-memory.dmp

    Filesize

    2.6MB

  • memory/2604-14-0x00000000745FE000-0x00000000745FF000-memory.dmp

    Filesize

    4KB

  • memory/2604-34-0x0000000002110000-0x000000000214A000-memory.dmp

    Filesize

    232KB

  • memory/2680-88-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2680-70-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2680-74-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2680-78-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2680-86-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2680-105-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2680-81-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2680-84-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2688-101-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2688-98-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2688-94-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2688-96-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2688-104-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2688-102-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2696-68-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2696-72-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2696-75-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2696-80-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2696-87-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2696-90-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2696-106-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2696-107-0x0000000000250000-0x000000000025A000-memory.dmp

    Filesize

    40KB

  • memory/2952-43-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2952-45-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2952-49-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2952-50-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2952-52-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2952-54-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2952-47-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2952-41-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB