Analysis

  • max time kernel
    151s
  • max time network
    78s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    14/10/2022, 12:28

General

  • Target

    19f780d3cd00939c3f0a87b60657d5c9a8fb3869f8326e9433ed87dbd2edbef0.exe

  • Size

    40.6MB

  • MD5

    a9fd01617601c7532cb62872f242403a

  • SHA1

    81f1424f3cac49da94a8824fdca85942ae4fc356

  • SHA256

    19f780d3cd00939c3f0a87b60657d5c9a8fb3869f8326e9433ed87dbd2edbef0

  • SHA512

    4118f204fa60b07c5c95d73668ffcb4053acb3ccc49b21274f906403c1d753ba4594601c255e71cd00944e05d0c0c90c7ece7baae16a9b00954ea5260e08356c

  • SSDEEP

    786432:bnsRF43ZUveBx2C5QuvOTo41nRHeDHYxpjq5XU/XFmNO5txTWVL:Ds34yeCCLOToEejPd6EO5tpWVL

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 43 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\19f780d3cd00939c3f0a87b60657d5c9a8fb3869f8326e9433ed87dbd2edbef0.exe
    "C:\Users\Admin\AppData\Local\Temp\19f780d3cd00939c3f0a87b60657d5c9a8fb3869f8326e9433ed87dbd2edbef0.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1712
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\system32\msiexec.exe" /i "C:\Users\Admin\AppData\Roaming\Inc\Telegram 4.6.0\install\Telegram.msi" AI_SETUPEXEPATH=C:\Users\Admin\AppData\Local\Temp\19f780d3cd00939c3f0a87b60657d5c9a8fb3869f8326e9433ed87dbd2edbef0.exe SETUPEXEDIR=C:\Users\Admin\AppData\Local\Temp\ EXE_CMD_LINE="/exenoupdates /forcecleanup /wintime 1665750742 " ALLUSERS="1" AI_EUIMSI=""
      2⤵
      • Blocklisted process makes network request
      • Enumerates connected drives
      • Suspicious use of FindShellTrayWindow
      PID:1020
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1240
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 03C027DD5C7D564D53C1330FC2B2B6A3 C
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:596
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:1212
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "0000000000000494" "00000000000004E8"
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:1828

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

            Filesize

            60KB

            MD5

            d15aaa7c9be910a9898260767e2490e1

            SHA1

            2090c53f8d9fc3fbdbafd3a1e4dc25520eb74388

            SHA256

            f8ebaaf487cba0c81a17c8cd680bdd2dd8e90d2114ecc54844cffc0cc647848e

            SHA512

            7e1c1a683914b961b5cc2fe5e4ae288b60bab43bfaa21ce4972772aa0589615c19f57e672e1d93e50a7ed7b76fbd2f1b421089dcaed277120b93f8e91b18af94

          • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

            Filesize

            342B

            MD5

            dce25fff9b788d530cda97a16a39bccb

            SHA1

            745df8d7d789f02a24ea54be3c19c0903060853f

            SHA256

            6cba3aed3a8eb435e4eff95a14a7858aa00033588569f1272c76ae10b7752da0

            SHA512

            8d8a1e3601949a6d2e2f7da19ca0a07856a733ba28d8ab27bde233b081a84778e0b79c265a5eeb22d846bc59b58a636f3c8b04e414a413c574f9a28640b33721

          • C:\Users\Admin\AppData\Local\Temp\MSI15EF.tmp

            Filesize

            436KB

            MD5

            475d20c0ea477a35660e3f67ecf0a1df

            SHA1

            67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

            SHA256

            426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

            SHA512

            99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

          • C:\Users\Admin\AppData\Local\Temp\MSI16F9.tmp

            Filesize

            897KB

            MD5

            6189cdcb92ab9ddbffd95facd0b631fa

            SHA1

            b74c72cefcb5808e2c9ae4ba976fa916ba57190d

            SHA256

            519f7ac72beba9d5d7dcf71fcac15546f5cfd3bcfc37a5129e63b4e0be91a783

            SHA512

            ee9ce27628e7a07849cd9717609688ca4229d47579b69e3d3b5b2e7c2433369de9557ef6a13fa59964f57fb213cd8ca205b35f5791ea126bde5a4e00f6a11caf

          • C:\Users\Admin\AppData\Roaming\Inc\Telegram 4.6.0\install\Telegram.msi

            Filesize

            3.6MB

            MD5

            450bb5e2e9f07d3b752ca9f063147549

            SHA1

            2a218db1d50e974d1e0fa747e70a4426e0183be7

            SHA256

            d07e318d90d253120bf0eab14f67e8e41ab86266c6a7dead2583fe1e850d260e

            SHA512

            8a9001d7b9a8c10c262853b829b6ab9be42d4eea1ae3b3188e3d32a7f28c9075ec2ad5270301d05ed2aefe59fb71dc8e3c3fd851e67525af5a20656772bd0bb8

          • \Users\Admin\AppData\Local\Temp\INA1581.tmp

            Filesize

            770KB

            MD5

            356fc2c181cc37e3f8ae4d6b855ebfcb

            SHA1

            2ead1e69f14099ae33a3216a9312c88007b73cd1

            SHA256

            c92b2d9623f19f8acfeac5fd894346515631ebb590e68f22c40a35fbacbef03c

            SHA512

            74ea73d3206ba1c6f1963caa4866589fe86636f68815c74733644ad6c4913de3f1399770f6095a48c9d94a7d934072d8d8b409a393de644265f6e456455dcebd

          • \Users\Admin\AppData\Local\Temp\MSI15EF.tmp

            Filesize

            436KB

            MD5

            475d20c0ea477a35660e3f67ecf0a1df

            SHA1

            67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

            SHA256

            426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

            SHA512

            99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

          • \Users\Admin\AppData\Local\Temp\MSI16F9.tmp

            Filesize

            897KB

            MD5

            6189cdcb92ab9ddbffd95facd0b631fa

            SHA1

            b74c72cefcb5808e2c9ae4ba976fa916ba57190d

            SHA256

            519f7ac72beba9d5d7dcf71fcac15546f5cfd3bcfc37a5129e63b4e0be91a783

            SHA512

            ee9ce27628e7a07849cd9717609688ca4229d47579b69e3d3b5b2e7c2433369de9557ef6a13fa59964f57fb213cd8ca205b35f5791ea126bde5a4e00f6a11caf

          • memory/1240-56-0x000007FEFB821000-0x000007FEFB823000-memory.dmp

            Filesize

            8KB

          • memory/1712-54-0x0000000075071000-0x0000000075073000-memory.dmp

            Filesize

            8KB

          • memory/1712-55-0x00000000739F1000-0x00000000739F3000-memory.dmp

            Filesize

            8KB