Analysis

  • max time kernel
    121s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    15-02-2022 13:16

General

  • Target

    561986fd98e2ef79cfab1b7c0ebc4185d4c1b0f101ff10fc086d30fb6f02d283.exe

  • Size

    2.5MB

  • MD5

    17e6b50e6b3bd0ed3c3d7bb319e5c3bb

  • SHA1

    5ee76f504a953ce4d801100a1621033e6c4fe3f6

  • SHA256

    561986fd98e2ef79cfab1b7c0ebc4185d4c1b0f101ff10fc086d30fb6f02d283

  • SHA512

    6db1eb445485889795196cd87c6631b08b3a9da7c2ca37b7bf806b44ff6f5f37715d2fef6cc29e5a7b5c3995d011b0c610ff7c73a41a5f466f7d9fbe1705920f

Malware Config

Signatures

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

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

  • Themida packer 4 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • 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
  • 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 WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\561986fd98e2ef79cfab1b7c0ebc4185d4c1b0f101ff10fc086d30fb6f02d283.exe
    "C:\Users\Admin\AppData\Local\Temp\561986fd98e2ef79cfab1b7c0ebc4185d4c1b0f101ff10fc086d30fb6f02d283.exe"
    1⤵
    • 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 WriteProcessMemory
    PID:1448
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\indidbuxep.vbs"
      2⤵
        PID:308
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\imnpxrhwqo.vbs"
        2⤵
        • Blocklisted process makes network request
        PID:1304

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\imnpxrhwqo.vbs

      MD5

      48511d9e8cdd43aa84e7dd679e1a98d4

      SHA1

      6b71d2ae3ccdc8ec474d3e11335db81f7babc414

      SHA256

      958665186aa638e82b4ed52fcc091cadbb048be22cf8c10cb7412d033e69eda5

      SHA512

      d8838401ec9a0a70d030729472a320d8834f6dbe20462cf598e08570a98c3bbb26e4b6244e2bfd18258986d52cd0ce2a38d84aa1d8d804bf02c672ec59308d62

    • C:\Users\Admin\AppData\Local\Temp\indidbuxep.vbs

      MD5

      6c2765a0e7a081ce9bfa5fef148c21fd

      SHA1

      2b4c1908d1457b3ece6e4721b522f0fb16a0d6a7

      SHA256

      f0648a1dd3b6ea3aaf7170904ed4c679aba61c1d45d3452c7e5868b95d6dc5ac

      SHA512

      94fdbc217383e8596babdf0d4ea873d84bf5e9b1edda63cd003365cda1833db2d8ee6076492f4ae3d3208e2bc3a905042127731847fba33da00e8f3fe93b14bd

    • memory/1448-54-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

      Filesize

      8KB

    • memory/1448-55-0x0000000000AD0000-0x0000000001148000-memory.dmp

      Filesize

      6.5MB

    • memory/1448-56-0x0000000000AD0000-0x0000000001148000-memory.dmp

      Filesize

      6.5MB

    • memory/1448-57-0x0000000000AD0000-0x0000000001148000-memory.dmp

      Filesize

      6.5MB

    • memory/1448-58-0x0000000000AD0000-0x0000000001148000-memory.dmp

      Filesize

      6.5MB

    • memory/1448-59-0x0000000077590000-0x0000000077592000-memory.dmp

      Filesize

      8KB