Resubmissions

29-03-2024 14:25

240329-rrdgpsad9y

Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows10-1703_x64
  • resource
    win10-20240221-en
  • resource tags

    arch:x64arch:x86image:win10-20240221-enlocale:en-usos:windows10-1703-x64system
  • submitted
    29-03-2024 17:47

General

  • Target

    7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe

  • Size

    1.9MB

  • MD5

    864674e8be395eb28bb181184add5c01

  • SHA1

    79bb9c0ae54bf8572328af06b6576327bd0a386c

  • SHA256

    7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da

  • SHA512

    7f85146e5cca26f5a388aeea88cf9d86819aed6e240c3b94569967a2074654327e531be66f1335f9fa0790f13844c65315a3020d0e9c6bdce40c3605164abc25

  • SSDEEP

    49152:EJ8NNvupgJi+RYYhQx/QAfi4oxa03C+v7sOh9yPQtE:Xvu+RIx/QAfiTY03C+z/yP

Malware Config

Extracted

Family

amadey

Version

4.17

C2

http://185.215.113.32

Attributes
  • install_dir

    00c07260dc

  • install_file

    explorgu.exe

  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/index.php

rc4.plain

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 3 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
    "C:\Users\Admin\AppData\Local\Temp\7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    PID:2772
  • C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
    C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Executes dropped EXE
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4816
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1824
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2444
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:1808
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\360119756166_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1244
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll, Main
        2⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        PID:2256

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe

      Filesize

      1.9MB

      MD5

      864674e8be395eb28bb181184add5c01

      SHA1

      79bb9c0ae54bf8572328af06b6576327bd0a386c

      SHA256

      7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da

      SHA512

      7f85146e5cca26f5a388aeea88cf9d86819aed6e240c3b94569967a2074654327e531be66f1335f9fa0790f13844c65315a3020d0e9c6bdce40c3605164abc25

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_o3ksuy20.hof.ps1

      Filesize

      1B

      MD5

      c4ca4238a0b923820dcc509a6f75849b

      SHA1

      356a192b7913b04c54574d18c28d46e6395428ab

      SHA256

      6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

      SHA512

      4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

    • C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll

      Filesize

      109KB

      MD5

      2afdbe3b99a4736083066a13e4b5d11a

      SHA1

      4d4856cf02b3123ac16e63d4a448cdbcb1633546

      SHA256

      8d31b39170909595b518b1a03e9ec950540fabd545ed14817cac5c84b91599ee

      SHA512

      d89b3c46854153e60e3fa825b394344eee33936d7dbf186af9d95c9adae54428609e3bf21a18d38fce3d96f3e0b8e4e0ed25cb5004fbe288de3aef3a85b1d93f

    • C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll

      Filesize

      1.2MB

      MD5

      92fbdfccf6a63acef2743631d16652a7

      SHA1

      971968b1378dd89d59d7f84bf92f16fc68664506

      SHA256

      b4588feacc183cd5a089f9bb950827b75df04bd5a6e67c95ff258e4a34aa0d72

      SHA512

      b8ea216d4a59d8858fd4128abb555f8dcf3acca9138e663b488f09dc5200db6dc11ecc235a355e801145bbbb44d7beac6147949d75d78b32fe9cfd2fa200d117

    • memory/1244-102-0x0000026F62A00000-0x0000026F62A0A000-memory.dmp

      Filesize

      40KB

    • memory/1244-75-0x0000026F62B40000-0x0000026F62B50000-memory.dmp

      Filesize

      64KB

    • memory/1244-89-0x0000026F62A10000-0x0000026F62A22000-memory.dmp

      Filesize

      72KB

    • memory/1244-54-0x0000026F62AA0000-0x0000026F62B16000-memory.dmp

      Filesize

      472KB

    • memory/1244-51-0x0000026F62B40000-0x0000026F62B50000-memory.dmp

      Filesize

      64KB

    • memory/1244-49-0x0000026F62980000-0x0000026F629A2000-memory.dmp

      Filesize

      136KB

    • memory/1244-48-0x0000026F62B40000-0x0000026F62B50000-memory.dmp

      Filesize

      64KB

    • memory/1244-47-0x00007FF82E900000-0x00007FF82F2EC000-memory.dmp

      Filesize

      9.9MB

    • memory/1244-111-0x00007FF82E900000-0x00007FF82F2EC000-memory.dmp

      Filesize

      9.9MB

    • memory/2772-16-0x0000000000D30000-0x0000000001208000-memory.dmp

      Filesize

      4.8MB

    • memory/2772-0-0x0000000000D30000-0x0000000001208000-memory.dmp

      Filesize

      4.8MB

    • memory/2772-1-0x0000000077984000-0x0000000077985000-memory.dmp

      Filesize

      4KB

    • memory/2772-2-0x0000000000D30000-0x0000000001208000-memory.dmp

      Filesize

      4.8MB

    • memory/2772-3-0x00000000056C0000-0x00000000056C1000-memory.dmp

      Filesize

      4KB

    • memory/2772-5-0x00000000056B0000-0x00000000056B1000-memory.dmp

      Filesize

      4KB

    • memory/2772-4-0x00000000056D0000-0x00000000056D1000-memory.dmp

      Filesize

      4KB

    • memory/2772-6-0x00000000056F0000-0x00000000056F1000-memory.dmp

      Filesize

      4KB

    • memory/2772-7-0x0000000005690000-0x0000000005691000-memory.dmp

      Filesize

      4KB

    • memory/2772-8-0x00000000056A0000-0x00000000056A1000-memory.dmp

      Filesize

      4KB

    • memory/2772-9-0x00000000056E0000-0x00000000056E1000-memory.dmp

      Filesize

      4KB

    • memory/2772-10-0x0000000005710000-0x0000000005711000-memory.dmp

      Filesize

      4KB

    • memory/2772-11-0x0000000005700000-0x0000000005701000-memory.dmp

      Filesize

      4KB

    • memory/4816-50-0x00000000008F0000-0x0000000000DC8000-memory.dmp

      Filesize

      4.8MB

    • memory/4816-22-0x00000000049B0000-0x00000000049B1000-memory.dmp

      Filesize

      4KB

    • memory/4816-29-0x00000000049E0000-0x00000000049E1000-memory.dmp

      Filesize

      4KB

    • memory/4816-28-0x00000000049F0000-0x00000000049F1000-memory.dmp

      Filesize

      4KB

    • memory/4816-19-0x00000000008F0000-0x0000000000DC8000-memory.dmp

      Filesize

      4.8MB

    • memory/4816-21-0x00000000049A0000-0x00000000049A1000-memory.dmp

      Filesize

      4KB

    • memory/4816-24-0x00000000049D0000-0x00000000049D1000-memory.dmp

      Filesize

      4KB

    • memory/4816-26-0x0000000004980000-0x0000000004981000-memory.dmp

      Filesize

      4KB

    • memory/4816-27-0x00000000049C0000-0x00000000049C1000-memory.dmp

      Filesize

      4KB

    • memory/4816-25-0x0000000004970000-0x0000000004971000-memory.dmp

      Filesize

      4KB

    • memory/4816-23-0x0000000004990000-0x0000000004991000-memory.dmp

      Filesize

      4KB

    • memory/4816-30-0x00000000008F0000-0x0000000000DC8000-memory.dmp

      Filesize

      4.8MB

    • memory/4816-112-0x00000000008F0000-0x0000000000DC8000-memory.dmp

      Filesize

      4.8MB

    • memory/4816-113-0x00000000008F0000-0x0000000000DC8000-memory.dmp

      Filesize

      4.8MB

    • memory/4816-20-0x00000000008F0000-0x0000000000DC8000-memory.dmp

      Filesize

      4.8MB

    • memory/4816-125-0x00000000008F0000-0x0000000000DC8000-memory.dmp

      Filesize

      4.8MB

    • memory/4816-126-0x00000000008F0000-0x0000000000DC8000-memory.dmp

      Filesize

      4.8MB

    • memory/4816-127-0x00000000008F0000-0x0000000000DC8000-memory.dmp

      Filesize

      4.8MB

    • memory/4816-128-0x00000000008F0000-0x0000000000DC8000-memory.dmp

      Filesize

      4.8MB

    • memory/4816-129-0x00000000008F0000-0x0000000000DC8000-memory.dmp

      Filesize

      4.8MB

    • memory/4816-130-0x00000000008F0000-0x0000000000DC8000-memory.dmp

      Filesize

      4.8MB

    • memory/4816-131-0x00000000008F0000-0x0000000000DC8000-memory.dmp

      Filesize

      4.8MB