Analysis

  • max time kernel
    150s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/07/2024, 18:28

General

  • Target

    zvgfd-main/Empyrean Removal Tool.exe

  • Size

    633KB

  • MD5

    0079fab4268be36298a113b2979d70d7

  • SHA1

    804a7ace22a2785ac517b3c5325aea96d96231cf

  • SHA256

    33b4200a51c4ddd324dcfae8edb0a53a4bce3f1ad32ab882a0160af319f66900

  • SHA512

    cd8b523714a074fbd88fc726302b908c192c06f81ac4d1c46effa7fba162ff3289322d3a6f4764709914e081efde1d95a2358f80ea99817de98eade452462fb4

  • SSDEEP

    12288:2MH/IGvJlRawMnSG6BeogdLcuVipiKgn0leY8GbMyj8bExHwVaAWHjsXf:2MfI60wnG6YRdLbVipc0leY8GbMkj

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

finally-grande.gl.at.ply.gg:25844

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

xworm

C2

best-bird.gl.at.ply.gg:27196

super-nearest.gl.at.ply.gg:17835

wiz.bounceme.net:6000

aes.plain

Extracted

Family

quasar

Version

3.1.5

Botnet

Slave

C2

stop-largely.gl.at.ply.gg:27116

Mutex

$Sxr-kl1r656AGsPQksTmi8

Attributes
  • encryption_key

    ql4fQ8TV9ZFP9vRX2myA

  • install_name

    $sxr~Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    $77STARTUP~MSF

  • subdirectory

    $sxr~SubDir

Signatures

  • AsyncRat

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

  • Detect Xworm Payload 5 IoCs
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Async RAT payload 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.

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 2 IoCs
  • 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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Empyrean Removal Tool.exe
    "C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Empyrean Removal Tool.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2600
    • C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 1.exe
      "C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 1.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2380
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 1.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3872
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Part 1.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4580
    • C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 2.exe
      "C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 2.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:648
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "$77STARTUP~MSF" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 2.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3272
    • C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 3.exe
      "C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 3.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      PID:652
    • C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 4.exe
      "C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 4.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4672
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 4.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3056
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Part 4.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3528

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    d85ba6ff808d9e5444a4b369f5bc2730

    SHA1

    31aa9d96590fff6981b315e0b391b575e4c0804a

    SHA256

    84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

    SHA512

    8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

    Filesize

    944B

    MD5

    da5c82b0e070047f7377042d08093ff4

    SHA1

    89d05987cd60828cca516c5c40c18935c35e8bd3

    SHA256

    77a94ef8c4258445d538a6006ffadb05afdf888f6f044e1e5466b981a07f16c5

    SHA512

    7360311a3c97b73dd3f6d7179cd979e0e20d69f380d38292447e17e369087d9dd5acb66cd0cbdd95ac4bfb16e5a1b86825f835a8d45b14ea9812102cff59704b

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

    Filesize

    944B

    MD5

    d28a889fd956d5cb3accfbaf1143eb6f

    SHA1

    157ba54b365341f8ff06707d996b3635da8446f7

    SHA256

    21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

    SHA512

    0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

    Filesize

    944B

    MD5

    22310ad6749d8cc38284aa616efcd100

    SHA1

    440ef4a0a53bfa7c83fe84326a1dff4326dcb515

    SHA256

    55b1d8021c4eb4c3c0d75e3ed7a4eb30cd0123e3d69f32eeb596fe4ffec05abf

    SHA512

    2ef08e2ee15bb86695fe0c10533014ffed76ececc6e579d299d3365fafb7627f53e32e600bb6d872b9f58aca94f8cb7e1e94cdfd14777527f7f0aa019d9c6def

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qqkq5ytb.zb0.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 1.exe

    Filesize

    67KB

    MD5

    092a0c6fe885844fd74947e64e7fc11e

    SHA1

    bfe46f64f36f2e927d862a1a787f146ed2c01219

    SHA256

    91431cb73305e0f1fdc698907301b6d312a350f667c50765615672e7f10a68f2

    SHA512

    022589bd17b46e5486971a59b2517956bb15815266e48dc73a7ae9ac9efd42a348af09df471562eb71ffc94ce1e1845d54ca2994663d1496a385bce50ae595f0

  • C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 2.exe

    Filesize

    409KB

    MD5

    e10c7425705b2bd3214fa96247ee21c4

    SHA1

    7603536b97ab6337fa023bafcf80579c2b4059e6

    SHA256

    021068ac225e479b124c33d9e7582c17fdea6e625b165b79e2c818479d8094e4

    SHA512

    47e031992d637fef2a67e4fb08d2d82eaba03eba6b80f3e0e0997153acf0d979d0294276c4a10a97daa50130540230865c56191e6fe8df07dbea11c50fa48a2d

  • C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 3.exe

    Filesize

    63KB

    MD5

    27fe9341167a34f606b800303ac54b1f

    SHA1

    86373d218b48361bff1c23ddd08b6ab1803a51d0

    SHA256

    29e13a91af9b0ac77e9b7f8b0c26e5702f46bd8aea0333ca2d191d1d09c70c5d

    SHA512

    05b83ad544862d9c0cfc2651b2842624cff59fc4f454e0b1a2b36a705b558fad5a834f9f1af9f2626c57f1e3cd9aa400e290eaafb6efeb680422992bcbbde5b0

  • C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Part 4.exe

    Filesize

    79KB

    MD5

    1f1b23752df3d29e7604ba52aea85862

    SHA1

    bb582c6cf022098b171c4c9c7318a51de29ebcf4

    SHA256

    4834d31394f19d42e8d2a035b4c3c9c36441340ea19fe766396848ecfb608960

    SHA512

    d52722ab73bb15d4a5b0033351f98f168192f382677e6d474f6cf506cf8dc2f5e421e45279b6cac0f074857f41a865d87b5d989450bfcb8eba925b7baa12fbde

  • memory/648-55-0x0000000004AD0000-0x0000000004B36000-memory.dmp

    Filesize

    408KB

  • memory/648-57-0x0000000004FC0000-0x0000000004FD2000-memory.dmp

    Filesize

    72KB

  • memory/648-52-0x0000000000030000-0x000000000009C000-memory.dmp

    Filesize

    432KB

  • memory/648-53-0x0000000004FE0000-0x0000000005584000-memory.dmp

    Filesize

    5.6MB

  • memory/648-54-0x0000000004A30000-0x0000000004AC2000-memory.dmp

    Filesize

    584KB

  • memory/648-72-0x00000000061D0000-0x00000000061DA000-memory.dmp

    Filesize

    40KB

  • memory/648-58-0x0000000005BB0000-0x0000000005BEC000-memory.dmp

    Filesize

    240KB

  • memory/652-111-0x00007FF9EF3F0000-0x00007FF9EFEB1000-memory.dmp

    Filesize

    10.8MB

  • memory/652-51-0x00007FF9EF3F0000-0x00007FF9EFEB1000-memory.dmp

    Filesize

    10.8MB

  • memory/652-48-0x0000000000610000-0x0000000000626000-memory.dmp

    Filesize

    88KB

  • memory/2380-109-0x000000001C630000-0x000000001C63E000-memory.dmp

    Filesize

    56KB

  • memory/2380-56-0x00007FF9EF3F0000-0x00007FF9EFEB1000-memory.dmp

    Filesize

    10.8MB

  • memory/2380-112-0x00007FF9EF3F0000-0x00007FF9EFEB1000-memory.dmp

    Filesize

    10.8MB

  • memory/2380-49-0x00007FF9EF3F0000-0x00007FF9EFEB1000-memory.dmp

    Filesize

    10.8MB

  • memory/2380-42-0x0000000000790000-0x00000000007A8000-memory.dmp

    Filesize

    96KB

  • memory/2380-110-0x00007FF9EF3F0000-0x00007FF9EFEB1000-memory.dmp

    Filesize

    10.8MB

  • memory/2600-0-0x00007FF9EF3F3000-0x00007FF9EF3F5000-memory.dmp

    Filesize

    8KB

  • memory/2600-1-0x0000000000DB0000-0x0000000000E54000-memory.dmp

    Filesize

    656KB

  • memory/3872-64-0x000001E322450000-0x000001E322472000-memory.dmp

    Filesize

    136KB

  • memory/4672-50-0x0000000000040000-0x000000000005A000-memory.dmp

    Filesize

    104KB