Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-11-2024 02:16

General

  • Target

    1c30611e8e3a99301ffe1102d4f70c44fd2d7593878dcdf4178002777fe6e920.exe

  • Size

    12KB

  • MD5

    18208ba6920a74e8ca7bd244571ae383

  • SHA1

    61797d94d14935a588a799e8dc943355eb6f4022

  • SHA256

    1c30611e8e3a99301ffe1102d4f70c44fd2d7593878dcdf4178002777fe6e920

  • SHA512

    87fdb3de8301e8f2dd7b8601ee468e64387ce72616af21153d129f236bf28a6dd81e1ba905cd534281bdc94aca1d85898ec6e64170cab2bb58d3c608002f64f3

  • SSDEEP

    192:4Qt7If16ODCvuuYT6DI6kDmBwqVT9N62uEiGe5PF:A16O5CDIJDawqrklEiP5P

Malware Config

Extracted

Family

asyncrat

Version

AWS | RxR

Botnet

Default

C2

lastofdr51.mywire.org:6606

lastofdr51.mywire.org:7707

lastofdr51.mywire.org:8808

Nightmare15.strangled.net:6606

Nightmare15.strangled.net:7707

Nightmare15.strangled.net:8808

darkenssnight.ydns.eu:6606

darkenssnight.ydns.eu:7707

darkenssnight.ydns.eu:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_file

    SystemUpdate.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 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 6 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c30611e8e3a99301ffe1102d4f70c44fd2d7593878dcdf4178002777fe6e920.exe
    "C:\Users\Admin\AppData\Local\Temp\1c30611e8e3a99301ffe1102d4f70c44fd2d7593878dcdf4178002777fe6e920.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:984
    • C:\Users\Admin\AppData\Local\PhotoBox.exe
      "C:\Users\Admin\AppData\Local\PhotoBox.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:3308
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\PhotoBox.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4472
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YeANKIEIC.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4120
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YeANKIEIC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFE4.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2116
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:3368

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

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\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    1fe9f14e17c6ffb753fd03088aedc54f

    SHA1

    eda5350eaed0ae4574fadf0cfe3d0763178ac8df

    SHA256

    f3858f91debc135b9a6968603d981021f8f6e6f0576cf8282b728c99370e9cb9

    SHA512

    0edb2b37c51674435cc071cde5724397802c6a92e890c94886ed2d0c0ef202884f40e6e1012dc2958a3f4524acde606f1a8d9f5f8944cf5175ff8f380140960d

  • C:\Users\Admin\AppData\Local\PhotoBox.exe

    Filesize

    513KB

    MD5

    8d8718cc95ecf6af196cc0c0eaac9ae2

    SHA1

    0c822251da19e4f9f5a0b555d85fcf8813034b32

    SHA256

    89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4

    SHA512

    98a74f1db9a7334f05327d871e7aa4e3b264d2cc36709df6e625edb79dde1e49a355b439fa7b72e6a5714a9c2e5b8807aa94aa137fee36c78388bbeeb9445114

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wcwmxdjh.pzt.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpFE4.tmp

    Filesize

    1KB

    MD5

    b99ee35f2ad9dd4f68ac2c49aa1115d3

    SHA1

    71aa60c7f3b385e5bdb8736c2f57fa7873572397

    SHA256

    9e99f2fa2ef2f0f69b4cfeab2e1f3aaa2e95688519c4b8840b76ddf99fecea24

    SHA512

    e1baec9f9bd988f6ad28d28e6ff8bb1bb4a08b3b3244f23908b183c1e81d5891ac47a64186eab3716860d8a47d295d573704d7f777a0bfaa3e246618f1531518

  • memory/984-1-0x0000000000220000-0x000000000022A000-memory.dmp

    Filesize

    40KB

  • memory/984-2-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/984-0-0x000000007530E000-0x000000007530F000-memory.dmp

    Filesize

    4KB

  • memory/984-24-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/984-23-0x000000007530E000-0x000000007530F000-memory.dmp

    Filesize

    4KB

  • memory/3308-21-0x00000000055E0000-0x00000000055F0000-memory.dmp

    Filesize

    64KB

  • memory/3308-22-0x0000000006910000-0x0000000006C64000-memory.dmp

    Filesize

    3.3MB

  • memory/3308-20-0x00000000050B0000-0x00000000050BA000-memory.dmp

    Filesize

    40KB

  • memory/3308-19-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/3308-25-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/3308-26-0x0000000006F50000-0x0000000006FA8000-memory.dmp

    Filesize

    352KB

  • memory/3308-27-0x0000000009710000-0x00000000097AC000-memory.dmp

    Filesize

    624KB

  • memory/3308-18-0x00000000050E0000-0x0000000005172000-memory.dmp

    Filesize

    584KB

  • memory/3308-17-0x00000000055F0000-0x0000000005B94000-memory.dmp

    Filesize

    5.6MB

  • memory/3308-15-0x0000000000770000-0x00000000007F6000-memory.dmp

    Filesize

    536KB

  • memory/3308-16-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/3308-59-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/3368-57-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/4120-86-0x0000000007200000-0x000000000721A000-memory.dmp

    Filesize

    104KB

  • memory/4120-85-0x0000000007850000-0x0000000007ECA000-memory.dmp

    Filesize

    6.5MB

  • memory/4120-93-0x0000000007520000-0x0000000007528000-memory.dmp

    Filesize

    32KB

  • memory/4120-60-0x0000000005EC0000-0x0000000005EDE000-memory.dmp

    Filesize

    120KB

  • memory/4120-61-0x0000000005EE0000-0x0000000005F2C000-memory.dmp

    Filesize

    304KB

  • memory/4120-62-0x0000000006EA0000-0x0000000006ED2000-memory.dmp

    Filesize

    200KB

  • memory/4120-89-0x0000000007400000-0x0000000007411000-memory.dmp

    Filesize

    68KB

  • memory/4120-63-0x0000000070940000-0x000000007098C000-memory.dmp

    Filesize

    304KB

  • memory/4120-88-0x0000000007480000-0x0000000007516000-memory.dmp

    Filesize

    600KB

  • memory/4120-84-0x0000000006EE0000-0x0000000006F83000-memory.dmp

    Filesize

    652KB

  • memory/4120-87-0x0000000007270000-0x000000000727A000-memory.dmp

    Filesize

    40KB

  • memory/4472-66-0x0000000070940000-0x000000007098C000-memory.dmp

    Filesize

    304KB

  • memory/4472-35-0x00000000058A0000-0x00000000058C2000-memory.dmp

    Filesize

    136KB

  • memory/4472-83-0x0000000006D90000-0x0000000006DAE000-memory.dmp

    Filesize

    120KB

  • memory/4472-36-0x0000000005940000-0x00000000059A6000-memory.dmp

    Filesize

    408KB

  • memory/4472-90-0x0000000007DB0000-0x0000000007DBE000-memory.dmp

    Filesize

    56KB

  • memory/4472-91-0x0000000007DC0000-0x0000000007DD4000-memory.dmp

    Filesize

    80KB

  • memory/4472-92-0x0000000007EC0000-0x0000000007EDA000-memory.dmp

    Filesize

    104KB

  • memory/4472-37-0x00000000059B0000-0x0000000005A16000-memory.dmp

    Filesize

    408KB

  • memory/4472-33-0x0000000005AC0000-0x00000000060E8000-memory.dmp

    Filesize

    6.2MB

  • memory/4472-32-0x0000000005290000-0x00000000052C6000-memory.dmp

    Filesize

    216KB