Analysis

  • max time kernel
    149s
  • max time network
    178s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24/06/2022, 22:50

General

  • Target

    41ce8dc9fe52cbb66ddf436ec0d9160bf9ce9194c423fbc0397705793f8ddc2c.exe

  • Size

    4.1MB

  • MD5

    88f8f695e6af7d58da5f5b7ef60d0bde

  • SHA1

    16b06bd05058abf520703ab656826099f93a094b

  • SHA256

    41ce8dc9fe52cbb66ddf436ec0d9160bf9ce9194c423fbc0397705793f8ddc2c

  • SHA512

    37781b0d848f512caf258f3d21836827d8206ecafabced9f579f9fc25537c60ed20cf5e509b0de882dee7b4d09751fcc8a68541ae9e2d60175b2e4d9f6344ddc

Malware Config

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Blocklisted process makes network request 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

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

  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\41ce8dc9fe52cbb66ddf436ec0d9160bf9ce9194c423fbc0397705793f8ddc2c.exe
    "C:\Users\Admin\AppData\Local\Temp\41ce8dc9fe52cbb66ddf436ec0d9160bf9ce9194c423fbc0397705793f8ddc2c.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1016
    • C:\Windows\SysWOW64\CScript.exe
      "C:\Windows\system32\CScript.exe" "C:\Program Files (x86)\Doper\ipras.vbs" //e:vbscript //B //NOLOGO
      2⤵
      • Blocklisted process makes network request
      PID:2020
    • C:\Program Files (x86)\Doper\Download.exe
      "C:\Program Files (x86)\Doper\Download.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Identifies Wine through registry keys
      • Loads dropped DLL
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      PID:436

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\Doper\Download.exe

    Filesize

    2.1MB

    MD5

    b8312084a400862a2c19797691c6f0a6

    SHA1

    d675f4ed00508ff0208f75fd6851d14348c9bed4

    SHA256

    9f23b60e0b3c3360a2b67cc40d977577a74d1b16306522aa306b0feb29dad07b

    SHA512

    beae195ed8dd2572e7299cdbe137d80f152cefa89c8bca25bafcf9527b34157833972cc3142d803e8cef33d5fe72217278253f423cc203585097a7ec1a0496ce

  • C:\Program Files (x86)\Doper\Download.exe

    Filesize

    2.1MB

    MD5

    b8312084a400862a2c19797691c6f0a6

    SHA1

    d675f4ed00508ff0208f75fd6851d14348c9bed4

    SHA256

    9f23b60e0b3c3360a2b67cc40d977577a74d1b16306522aa306b0feb29dad07b

    SHA512

    beae195ed8dd2572e7299cdbe137d80f152cefa89c8bca25bafcf9527b34157833972cc3142d803e8cef33d5fe72217278253f423cc203585097a7ec1a0496ce

  • C:\Program Files (x86)\Doper\ipras.vbs

    Filesize

    126B

    MD5

    b802ff9244875f69db2fae0f78e92b10

    SHA1

    49385a89cd575894a29fbda969b99cc1f5cf8076

    SHA256

    a1b0cb16fb2ecd66fccf156024404801ad694056e8a596326c1b27b57d8eabe8

    SHA512

    609856415a7ae2b3e260f945f1c8a8d2a28884c202d37181bea948708918f24b42ae03f17dba1520fddc91b2f7a182b0b8f885f33ea6f81bb3ee4c72e4e9350e

  • \Program Files (x86)\Doper\Download.exe

    Filesize

    2.1MB

    MD5

    b8312084a400862a2c19797691c6f0a6

    SHA1

    d675f4ed00508ff0208f75fd6851d14348c9bed4

    SHA256

    9f23b60e0b3c3360a2b67cc40d977577a74d1b16306522aa306b0feb29dad07b

    SHA512

    beae195ed8dd2572e7299cdbe137d80f152cefa89c8bca25bafcf9527b34157833972cc3142d803e8cef33d5fe72217278253f423cc203585097a7ec1a0496ce

  • \Program Files (x86)\Doper\Download.exe

    Filesize

    2.1MB

    MD5

    b8312084a400862a2c19797691c6f0a6

    SHA1

    d675f4ed00508ff0208f75fd6851d14348c9bed4

    SHA256

    9f23b60e0b3c3360a2b67cc40d977577a74d1b16306522aa306b0feb29dad07b

    SHA512

    beae195ed8dd2572e7299cdbe137d80f152cefa89c8bca25bafcf9527b34157833972cc3142d803e8cef33d5fe72217278253f423cc203585097a7ec1a0496ce

  • \Program Files (x86)\Doper\Download.exe

    Filesize

    2.1MB

    MD5

    b8312084a400862a2c19797691c6f0a6

    SHA1

    d675f4ed00508ff0208f75fd6851d14348c9bed4

    SHA256

    9f23b60e0b3c3360a2b67cc40d977577a74d1b16306522aa306b0feb29dad07b

    SHA512

    beae195ed8dd2572e7299cdbe137d80f152cefa89c8bca25bafcf9527b34157833972cc3142d803e8cef33d5fe72217278253f423cc203585097a7ec1a0496ce

  • \Users\Admin\AppData\Local\Temp\nst6808.tmp\UAC.dll

    Filesize

    14KB

    MD5

    adb29e6b186daa765dc750128649b63d

    SHA1

    160cbdc4cb0ac2c142d361df138c537aa7e708c9

    SHA256

    2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

    SHA512

    b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

  • \Users\Admin\AppData\Local\Temp\nst6808.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    132e6153717a7f9710dcea4536f364cd

    SHA1

    e39bc82c7602e6dd0797115c2bd12e872a5fb2ab

    SHA256

    d29afce2588d8dd7bb94c00ca91cac0e85b80ffa6b221f5ffcb83a2497228eb2

    SHA512

    9aeb0b3051ce07fb9f03dfee7cea4a5e423425e48cb538173bd2a167817f867a30bd4d27d07875f27ca00031745b24547030b7f146660b049fa717590f1c77e1

  • memory/436-68-0x0000000000870000-0x0000000000D9C000-memory.dmp

    Filesize

    5.2MB

  • memory/436-74-0x0000000074311000-0x0000000074313000-memory.dmp

    Filesize

    8KB

  • memory/436-85-0x0000000074191000-0x0000000074193000-memory.dmp

    Filesize

    8KB

  • memory/436-84-0x0000000000870000-0x0000000000D9C000-memory.dmp

    Filesize

    5.2MB

  • memory/436-83-0x0000000000870000-0x0000000000D9C000-memory.dmp

    Filesize

    5.2MB

  • memory/436-69-0x0000000001190000-0x00000000016BC000-memory.dmp

    Filesize

    5.2MB

  • memory/436-70-0x0000000001190000-0x00000000016BC000-memory.dmp

    Filesize

    5.2MB

  • memory/436-71-0x0000000074511000-0x0000000074513000-memory.dmp

    Filesize

    8KB

  • memory/436-72-0x00000000778B0000-0x0000000077A30000-memory.dmp

    Filesize

    1.5MB

  • memory/436-73-0x0000000000870000-0x0000000000D9C000-memory.dmp

    Filesize

    5.2MB

  • memory/1016-67-0x00000000027B0000-0x0000000002CDC000-memory.dmp

    Filesize

    5.2MB

  • memory/1016-54-0x0000000075F61000-0x0000000075F63000-memory.dmp

    Filesize

    8KB