Analysis

  • max time kernel
    154s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    29-04-2023 09:55

General

  • Target

    Inno/InnoInstaller.exe

  • Size

    1019.0MB

  • MD5

    801879d5b7a0c86a30552dafbbf1460d

  • SHA1

    d1aca891358f0fd24e12a759e4cafbcd7be909b7

  • SHA256

    9c98187745a94a9687536aac12711617c55a411c9ba231791924236f3627cde5

  • SHA512

    fc8b64f350c1bf6a9a516f9a80906c4ecbf5b75f9982a596cf946aa88c7b338e62824811484afeeaa539567e0b19d0e319a764eaf21764b332408760a14b420d

  • SSDEEP

    98304:XHpb2umYIoREUsoGytV4n0oj8tb3gCHg1dWmX:Xdlm7AEQGyD4E39AvtX

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Obfuscated with Agile.Net obfuscator 2 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 3 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks installed software on the system 1 TTPs

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

  • Checks whether UAC is enabled 1 TTPs 1 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Inno\InnoInstaller.exe
    "C:\Users\Admin\AppData\Local\Temp\Inno\InnoInstaller.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 1892
      2⤵
      • Program crash
      PID:1800

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\19356edbacbd20516554b02cddfad429\Admin@[email protected]\Software.txt

    Filesize

    4KB

    MD5

    0deddb3cd02f97a1b29228e249b3b365

    SHA1

    fecda2c925798a04ad17871124a441dd96ae1730

    SHA256

    f347f9e4d3dd0ce266a5d225c0471e33386c659c6c2425a1b2e625864e538b9b

    SHA512

    23d186926572a79bd7cec17ddfc8dc49e97097636cf34cdbc4a8b3d6b590362635cb41200da96385cbc9da4d255cef65bf5bf2cd964c37c331ef9d1dec50eeb0

  • memory/1976-57-0x0000000000260000-0x0000000000C08000-memory.dmp

    Filesize

    9.7MB

  • memory/1976-56-0x0000000000260000-0x0000000000C08000-memory.dmp

    Filesize

    9.7MB

  • memory/1976-58-0x0000000000260000-0x0000000000C08000-memory.dmp

    Filesize

    9.7MB

  • memory/1976-59-0x0000000000C50000-0x0000000000C90000-memory.dmp

    Filesize

    256KB

  • memory/1976-73-0x0000000000260000-0x0000000000C08000-memory.dmp

    Filesize

    9.7MB

  • memory/1976-145-0x0000000000C50000-0x0000000000C90000-memory.dmp

    Filesize

    256KB