Analysis

  • max time kernel
    152s
  • max time network
    58s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    19-04-2022 02:37

General

  • Target

    Trojan.Ransom.exe

  • Size

    49KB

  • MD5

    46bfd4f1d581d7c0121d2b19a005d3df

  • SHA1

    5b063298bbd1670b4d39e1baef67f854b8dcba9d

  • SHA256

    683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96

  • SHA512

    b52aa090f689765d099689700be7e18922137e7a860a00113e3f72aa6553e94a870bbb741e52de9617506a236a2a59198fb224fcd128576d76642eec9d715df5

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\!satana!.txt

Ransom Note
You had bad luck.There was crypting of all your files in a FS bootkit virus <!SATANA!> To decrypt you need send on this E-mail: [email protected] your private code: A3D90235E1136671AB1195C6078184FF and pay on a Bitcoin Wallet: Xqz5WKhkQJBub7XABd4TJANXtQXGCacNUG total 0,5 btc After that during 1 - 2 days the software will be sent to you - decryptor - and the necessary instructions. All changes in hardware configurations of your computer can make the decryption of your files absolutely impossible! Decryption of your files is possible only on your PC! Recovery is possible during 7 days, after which the program - decryptor - can not ask for the necessary signature from a public certificate server. Please contact via e-mail, which you can find as yet in the form of a text document in a folder with encrypted files, as well as in the name of all encrypted files.If you do not appreciate your files we recommend you format all your disks and reinstall the system. Read carefully this warning as it is no longer able to see at startup of the computer. We remind once again- it is all serious! Do not touch the configuration of your computer! E-mail: [email protected] - this is our mail CODE: A3D90235E1136671AB1195C6078184FF this is code; you must send BTC: Xqz5WKhkQJBub7XABd4TJANXtQXGCacNUG here need to pay 0,5 bitcoins How to pay on the Bitcoin wallet you can easily find on the Internet. Enter your unlock code, obtained by E-mail here and press "ENTER" to continue the normal download on your computer. Good luck! May God help you! <!SATANA!>

Signatures

  • Satana

    Ransomware family which also encrypts the system's Master Boot Record (MBR).

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Trojan.Ransom.exe
    "C:\Users\Admin\AppData\Local\Temp\Trojan.Ransom.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Users\Admin\AppData\Local\Temp\Trojan.Ransom.exe
      "C:\Users\Admin\AppData\Local\Temp\Trojan.Ransom.exe"
      2⤵
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1100
      • C:\Users\Admin\AppData\Local\Temp\uycsvtb.exe
        "C:\Users\Admin\AppData\Local\Temp\uycsvtb.exe" {846ee340-7039-11de-9d20-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\TROJAN~1.EXE"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1548
        • C:\Users\Admin\AppData\Local\Temp\uycsvtb.exe
          "C:\Users\Admin\AppData\Local\Temp\uycsvtb.exe" {846ee340-7039-11de-9d20-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\TROJAN~1.EXE"
          4⤵
          • Executes dropped EXE
          • Deletes itself
          • Loads dropped DLL
          • Writes to the Master Boot Record (MBR)
          • Drops file in Program Files directory
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1152
          • C:\Windows\SysWOW64\VSSADMIN.EXE
            "C:\Windows\system32\VSSADMIN.EXE" Delete Shadows /All /Quiet
            5⤵
            • Interacts with shadow copies
            PID:1048
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1636

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\!satana!.txt

    Filesize

    1KB

    MD5

    c588311345ad462b264edbdcafbf9bf0

    SHA1

    ee2ee48b791c700ba82294edc8abf1c6b3f6ad99

    SHA256

    f85aa2765100e6248394ce0bb0e8368e9d3daa63e4d27190bb8f243539a390c4

    SHA512

    a24451b006b947108de740ecd5d83c7cb0b039e1b2b9a9d65ddab4ba1aa7f8b09a1a3ca1d53aaa5df6fa610095ed2deb8ffa7e9c1809d0c9866a66e07f9058af

  • C:\Users\Admin\AppData\Local\Temp\uycsvtb.exe

    Filesize

    49KB

    MD5

    46bfd4f1d581d7c0121d2b19a005d3df

    SHA1

    5b063298bbd1670b4d39e1baef67f854b8dcba9d

    SHA256

    683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96

    SHA512

    b52aa090f689765d099689700be7e18922137e7a860a00113e3f72aa6553e94a870bbb741e52de9617506a236a2a59198fb224fcd128576d76642eec9d715df5

  • C:\Users\Admin\AppData\Local\Temp\uycsvtb.exe

    Filesize

    49KB

    MD5

    46bfd4f1d581d7c0121d2b19a005d3df

    SHA1

    5b063298bbd1670b4d39e1baef67f854b8dcba9d

    SHA256

    683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96

    SHA512

    b52aa090f689765d099689700be7e18922137e7a860a00113e3f72aa6553e94a870bbb741e52de9617506a236a2a59198fb224fcd128576d76642eec9d715df5

  • C:\Users\Admin\AppData\Local\Temp\uycsvtb.exe

    Filesize

    49KB

    MD5

    46bfd4f1d581d7c0121d2b19a005d3df

    SHA1

    5b063298bbd1670b4d39e1baef67f854b8dcba9d

    SHA256

    683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96

    SHA512

    b52aa090f689765d099689700be7e18922137e7a860a00113e3f72aa6553e94a870bbb741e52de9617506a236a2a59198fb224fcd128576d76642eec9d715df5

  • \Users\Admin\AppData\Local\Temp\uycsvtb.exe

    Filesize

    49KB

    MD5

    46bfd4f1d581d7c0121d2b19a005d3df

    SHA1

    5b063298bbd1670b4d39e1baef67f854b8dcba9d

    SHA256

    683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96

    SHA512

    b52aa090f689765d099689700be7e18922137e7a860a00113e3f72aa6553e94a870bbb741e52de9617506a236a2a59198fb224fcd128576d76642eec9d715df5

  • \Users\Admin\AppData\Local\Temp\uycsvtb.exe

    Filesize

    49KB

    MD5

    46bfd4f1d581d7c0121d2b19a005d3df

    SHA1

    5b063298bbd1670b4d39e1baef67f854b8dcba9d

    SHA256

    683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96

    SHA512

    b52aa090f689765d099689700be7e18922137e7a860a00113e3f72aa6553e94a870bbb741e52de9617506a236a2a59198fb224fcd128576d76642eec9d715df5

  • \Users\Admin\AppData\Local\Temp\uycsvtb.exe

    Filesize

    49KB

    MD5

    46bfd4f1d581d7c0121d2b19a005d3df

    SHA1

    5b063298bbd1670b4d39e1baef67f854b8dcba9d

    SHA256

    683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96

    SHA512

    b52aa090f689765d099689700be7e18922137e7a860a00113e3f72aa6553e94a870bbb741e52de9617506a236a2a59198fb224fcd128576d76642eec9d715df5

  • \Users\Admin\AppData\Local\Temp\uycsvtb.exe

    Filesize

    49KB

    MD5

    46bfd4f1d581d7c0121d2b19a005d3df

    SHA1

    5b063298bbd1670b4d39e1baef67f854b8dcba9d

    SHA256

    683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96

    SHA512

    b52aa090f689765d099689700be7e18922137e7a860a00113e3f72aa6553e94a870bbb741e52de9617506a236a2a59198fb224fcd128576d76642eec9d715df5

  • \Users\Admin\AppData\Local\Temp\uycsvtb.exe

    Filesize

    49KB

    MD5

    46bfd4f1d581d7c0121d2b19a005d3df

    SHA1

    5b063298bbd1670b4d39e1baef67f854b8dcba9d

    SHA256

    683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96

    SHA512

    b52aa090f689765d099689700be7e18922137e7a860a00113e3f72aa6553e94a870bbb741e52de9617506a236a2a59198fb224fcd128576d76642eec9d715df5

  • \Users\Admin\AppData\Local\Temp\uycsvtb.exe

    Filesize

    49KB

    MD5

    46bfd4f1d581d7c0121d2b19a005d3df

    SHA1

    5b063298bbd1670b4d39e1baef67f854b8dcba9d

    SHA256

    683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96

    SHA512

    b52aa090f689765d099689700be7e18922137e7a860a00113e3f72aa6553e94a870bbb741e52de9617506a236a2a59198fb224fcd128576d76642eec9d715df5

  • memory/1048-79-0x0000000000000000-mapping.dmp

  • memory/1100-54-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1100-59-0x0000000075381000-0x0000000075383000-memory.dmp

    Filesize

    8KB

  • memory/1100-60-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1100-57-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1100-55-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1152-76-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1548-65-0x0000000000000000-mapping.dmp