Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-11-2024 07:47

General

  • Target

    LPC Scanned Docs-Copyright ©‮GNP.CPL.dll

  • Size

    4KB

  • MD5

    3416cd045697fbdce8ee3af98e0c8d81

  • SHA1

    b488215ca71436c17f9b75559a46bc37f812d1bf

  • SHA256

    1a12342028912118504c3efb1145c4bc713cca6eb591866f26b2d7d9adc192ca

  • SHA512

    2e4ec4a4fb29397966a9336d0d0731f97db60225a4807c13543c9a3e60e1bdec073a468d76257fae78e73cf0d4c34eccf7481185266a2325dcfb6a6707336bc2

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

194.11.246.69:6606

194.11.246.69:7707

194.11.246.69:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    Notepad.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • Blocklisted process makes network request 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Executes dropped EXE 5 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 35 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 55 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\LPC Scanned Docs-Copyright ©‮GNP.CPL.dll",#1
    1⤵
    • Blocklisted process makes network request
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3592
    • C:\Users\Admin\AppData\Roaming\wordpad.exe
      "C:\Users\Admin\AppData\Roaming\wordpad.exe"
      2⤵
      • Checks computer location settings
      • 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:1332
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wordpad.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3076
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OkmWHZjOIf.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1688
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OkmWHZjOIf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1846.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3600
      • C:\Users\Admin\AppData\Roaming\wordpad.exe
        "C:\Users\Admin\AppData\Roaming\wordpad.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3608
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Notepad" /tr '"C:\Users\Admin\AppData\Roaming\Notepad.exe"' & exit
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2044
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /f /sc onlogon /rl highest /tn "Notepad" /tr '"C:\Users\Admin\AppData\Roaming\Notepad.exe"'
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:644
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2D16.tmp.bat""
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3936
          • C:\Windows\SysWOW64\timeout.exe
            timeout 3
            5⤵
            • System Location Discovery: System Language Discovery
            • Delays execution with timeout.exe
            PID:3812
          • C:\Users\Admin\AppData\Roaming\Notepad.exe
            "C:\Users\Admin\AppData\Roaming\Notepad.exe"
            5⤵
            • Checks computer location settings
            • 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:224
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Notepad.exe"
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:3676
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OkmWHZjOIf.exe"
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:3356
            • C:\Windows\SysWOW64\schtasks.exe
              "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OkmWHZjOIf" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAFE2.tmp"
              6⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:2384
            • C:\Users\Admin\AppData\Roaming\Notepad.exe
              "C:\Users\Admin\AppData\Roaming\Notepad.exe"
              6⤵
              • Executes dropped EXE
              PID:3588
            • C:\Users\Admin\AppData\Roaming\Notepad.exe
              "C:\Users\Admin\AppData\Roaming\Notepad.exe"
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              PID:4524

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\wordpad.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    efa1f9b50c4818084019a406bf7503da

    SHA1

    1082303137025b0d6490fa3fadb40457b7b2dc9b

    SHA256

    503b2f5ceb85a61da13913c4c8a7da50ec79c9d1ac7c1fc8599beb1db10ca1f8

    SHA512

    28be8cb64b96a5e7c8a0d73ae85975acf959c2f0f556d1b91c467f5a7e2338a7fd2ecca4233a78f9b09e0cc7f83a064c073e6ee72067960eca853b112a8a5036

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    7888371202f4be430845671ec282e9d0

    SHA1

    08b9cd03ed6f57c285c777c1b9a2886e0092e24f

    SHA256

    cca2487593743bb4579044990dd29c5ca983de355eb8f802cd8fd84362ff947d

    SHA512

    e2e575b9e26e6bf7f49e27cd30683c7d45dec269ce9cee481a41ebb455b699f1752350a4303835640271ddc63a85a2e5d6d7736275f956f1f21c9b687e5d7a67

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_huzc4hot.lfn.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp1846.tmp

    Filesize

    1KB

    MD5

    8f1034e2419178d1d9d96fb19e8ad2bb

    SHA1

    b60b0c39656762e136dfd9ba4ea16478f92308b1

    SHA256

    c9d300602f378fee30dfaa1903bc0994ffb89512eb6c0487f59cf5e54052b942

    SHA512

    1f1b82b8b1b475e65b957c247ef095cb132aa81d29f12a3e56d3a4ec0a70ca5ba6c8e2411f68f96947f07ccb9eef672799833767727b7d8ac415409579db8cd9

  • C:\Users\Admin\AppData\Local\Temp\tmp2D16.tmp.bat

    Filesize

    151B

    MD5

    628a979a85419cc9e74498fa68bc617c

    SHA1

    67db0ab38c87be9e36d71ff85864391969b340b7

    SHA256

    a3fa47deef08512734738ace848665459fd7cb03e73d3462b4721bd072586281

    SHA512

    abbdfbcde1c4b9cafa8db44d68f790b0a75bb14df0102e192443dc29fdf16457c483106b829cda8254d58df53eff4b3d8f3c663494de7ae13947f3fd2ca41931

  • C:\Users\Admin\AppData\Roaming\wordpad.exe

    Filesize

    4.1MB

    MD5

    f6ce31834fcf3edcdd0b7a608809df0c

    SHA1

    a136680bb7949a4def2dadf8dd65ce4a861aa686

    SHA256

    c13681b3d02aeaaafa0da50acf51d3f60602a3bdd4c178ab5fb671a791fb988b

    SHA512

    65cc32059659c2da69ddc934cc1f35fac3a569618586df4bc0e2c2bbacf6a35554ff05665a4bcd151b4e4e464ef18c96ed3040f57fb8f1d41b9fd639b978db40

  • memory/224-106-0x0000000008530000-0x0000000008902000-memory.dmp

    Filesize

    3.8MB

  • memory/1332-17-0x00000000056F0000-0x0000000005782000-memory.dmp

    Filesize

    584KB

  • memory/1332-14-0x00000000750CE000-0x00000000750CF000-memory.dmp

    Filesize

    4KB

  • memory/1332-20-0x0000000005990000-0x0000000005A2C000-memory.dmp

    Filesize

    624KB

  • memory/1332-23-0x0000000005AC0000-0x0000000005AD2000-memory.dmp

    Filesize

    72KB

  • memory/1332-24-0x0000000009430000-0x0000000009802000-memory.dmp

    Filesize

    3.8MB

  • memory/1332-16-0x0000000005CA0000-0x0000000006244000-memory.dmp

    Filesize

    5.6MB

  • memory/1332-19-0x00000000750C0000-0x0000000075870000-memory.dmp

    Filesize

    7.7MB

  • memory/1332-18-0x00000000058A0000-0x00000000058AA000-memory.dmp

    Filesize

    40KB

  • memory/1332-22-0x00000000750C0000-0x0000000075870000-memory.dmp

    Filesize

    7.7MB

  • memory/1332-21-0x00000000750CE000-0x00000000750CF000-memory.dmp

    Filesize

    4KB

  • memory/1332-58-0x00000000750C0000-0x0000000075870000-memory.dmp

    Filesize

    7.7MB

  • memory/1332-15-0x00000000008E0000-0x0000000000D06000-memory.dmp

    Filesize

    4.1MB

  • memory/1688-84-0x0000000007F60000-0x00000000085DA000-memory.dmp

    Filesize

    6.5MB

  • memory/1688-89-0x0000000007A50000-0x0000000007A5E000-memory.dmp

    Filesize

    56KB

  • memory/1688-35-0x0000000005EB0000-0x0000000006204000-memory.dmp

    Filesize

    3.3MB

  • memory/1688-88-0x0000000007A20000-0x0000000007A31000-memory.dmp

    Filesize

    68KB

  • memory/1688-60-0x0000000006940000-0x000000000698C000-memory.dmp

    Filesize

    304KB

  • memory/1688-87-0x0000000007AC0000-0x0000000007B56000-memory.dmp

    Filesize

    600KB

  • memory/1688-62-0x0000000075970000-0x00000000759BC000-memory.dmp

    Filesize

    304KB

  • memory/3076-61-0x0000000006370000-0x00000000063A2000-memory.dmp

    Filesize

    200KB

  • memory/3076-34-0x0000000005680000-0x00000000056E6000-memory.dmp

    Filesize

    408KB

  • memory/3076-83-0x0000000006F90000-0x0000000007033000-memory.dmp

    Filesize

    652KB

  • memory/3076-63-0x0000000075970000-0x00000000759BC000-memory.dmp

    Filesize

    304KB

  • memory/3076-85-0x00000000070B0000-0x00000000070CA000-memory.dmp

    Filesize

    104KB

  • memory/3076-86-0x0000000007120000-0x000000000712A000-memory.dmp

    Filesize

    40KB

  • memory/3076-29-0x00000000047B0000-0x00000000047E6000-memory.dmp

    Filesize

    216KB

  • memory/3076-59-0x0000000005D90000-0x0000000005DAE000-memory.dmp

    Filesize

    120KB

  • memory/3076-30-0x0000000004E80000-0x00000000054A8000-memory.dmp

    Filesize

    6.2MB

  • memory/3076-90-0x00000000072F0000-0x0000000007304000-memory.dmp

    Filesize

    80KB

  • memory/3076-91-0x00000000073F0000-0x000000000740A000-memory.dmp

    Filesize

    104KB

  • memory/3076-92-0x00000000073D0000-0x00000000073D8000-memory.dmp

    Filesize

    32KB

  • memory/3076-33-0x0000000005560000-0x00000000055C6000-memory.dmp

    Filesize

    408KB

  • memory/3076-78-0x0000000006350000-0x000000000636E000-memory.dmp

    Filesize

    120KB

  • memory/3076-32-0x0000000004DE0000-0x0000000004E02000-memory.dmp

    Filesize

    136KB

  • memory/3356-146-0x00000000759A0000-0x00000000759EC000-memory.dmp

    Filesize

    304KB

  • memory/3592-0-0x0000000054330000-0x0000000054335000-memory.dmp

    Filesize

    20KB

  • memory/3592-11-0x0000000054330000-0x0000000054335000-memory.dmp

    Filesize

    20KB

  • memory/3608-56-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/3676-118-0x00000000062A0000-0x00000000065F4000-memory.dmp

    Filesize

    3.3MB

  • memory/3676-134-0x0000000006990000-0x00000000069DC000-memory.dmp

    Filesize

    304KB

  • memory/3676-135-0x00000000759A0000-0x00000000759EC000-memory.dmp

    Filesize

    304KB

  • memory/3676-145-0x0000000007B50000-0x0000000007BF3000-memory.dmp

    Filesize

    652KB

  • memory/3676-156-0x0000000007E70000-0x0000000007E81000-memory.dmp

    Filesize

    68KB

  • memory/3676-157-0x0000000007ED0000-0x0000000007EE4000-memory.dmp

    Filesize

    80KB