Analysis

  • max time kernel
    127s
  • max time network
    111s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09-11-2020 19:50

General

  • Target

    4984825fb21206a2f2df5d2c84794f0ac4edea3c48d32e9284338d7082d55024.exe

  • Size

    423KB

  • MD5

    055c2fba242d03ae153be4a796c55ae2

  • SHA1

    be71b94e30d5465d8b72e1fc7c0137024f97baee

  • SHA256

    4984825fb21206a2f2df5d2c84794f0ac4edea3c48d32e9284338d7082d55024

  • SHA512

    20b31f6db488d26c1f7564106e455a77461e8a9934718e72c6c917e3ec688a9a597a05f1b93584fd88d3e867f09a470eb90094e27c2525939894973d31498890

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\HELP_ME_RECOVER_MY_FILES.txt

Family

hakbit

Ransom Note
Atention! all your important files were encrypted! to get your files back send 0.5 Bitcoins and contact us with proof of payment and your Unique Identifier Key. We will send you a decryption tool with your personal decryption password. Where can you buy Bitcoins: https://www.coinbase.com https://localbitcoins.com Contact: daaaataaaaa@protonmail.com. Bitcoin wallet to make the transfer to is:1Kex5QmBGtJLDagn3o2p1yoqyKn2A6EFG9 Unique Identifier Key (must be sent to us together with proof of payment): ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ gH111l6/O6LnM/ocMWRjanz1ZLrBQzcWKIuj3CipZFUoo6csPEHMThHFESnc6N8aQ6Dz0ZVo8Gr7Gfszc7tdGQgXngHyl73du+RToEvJC5YkzPuddJrd4R579LIKmY/bxbnIhAyxqmENmZ+cZl0bW3aQaokqWf5rlPI3OEHaLUL5+TOHRTW/oUuByuccUbOMB15iT/E6x+35VIqhTT3y2ztl7X/hjePeLiu6R5rR7bbBCuwsPXvYjjKrOHEZgWYlVcSJuoRIiptTStp6wxx6hB6XNNVlVehZxFwLrxf0k7LSZOKWJL5O1oG8/I2S49XrpzE6bIRVj+piw96g1s8bZg== ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Number of files that you could have potentially lost forever can be as high as: 233
Emails

daaaataaaaa@protonmail.com

Wallets

1Kex5QmBGtJLDagn3o2p1yoqyKn2A6EFG9

Signatures

  • Hakbit

    Ransomware which encrypts files using AES, first seen in November 2019.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Disables Task Manager via registry modification
  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Enumerates connected drives 3 TTPs 18 IoCs

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

  • Modifies WinLogon 2 TTPs 2 IoCs
  • Modifies service 2 TTPs 5 IoCs
  • Launches sc.exe

    Sc.exe is a Windows utlilty to control services on the system.

  • Interacts with shadow copies 2 TTPs 14 IoCs

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

  • Kills process with taskkill 3 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 68 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4984825fb21206a2f2df5d2c84794f0ac4edea3c48d32e9284338d7082d55024.exe
    "C:\Users\Admin\AppData\Local\Temp\4984825fb21206a2f2df5d2c84794f0ac4edea3c48d32e9284338d7082d55024.exe"
    1⤵
    • Modifies extensions of user files
    • Modifies WinLogon
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4772
    • C:\Windows\SYSTEM32\net.exe
      "net.exe" stop avpsus /y
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3484
      • C:\Windows\system32\net1.exe
        C:\Windows\system32\net1 stop avpsus /y
        3⤵
          PID:416
      • C:\Windows\SYSTEM32\net.exe
        "net.exe" stop McAfeeDLPAgentService /y
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:744
        • C:\Windows\system32\net1.exe
          C:\Windows\system32\net1 stop McAfeeDLPAgentService /y
          3⤵
            PID:4244
        • C:\Windows\SYSTEM32\net.exe
          "net.exe" stop mfewc /y
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4400
          • C:\Windows\system32\net1.exe
            C:\Windows\system32\net1 stop mfewc /y
            3⤵
              PID:3848
          • C:\Windows\SYSTEM32\net.exe
            "net.exe" stop BMR Boot Service /y
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4068
            • C:\Windows\system32\net1.exe
              C:\Windows\system32\net1 stop BMR Boot Service /y
              3⤵
                PID:4176
            • C:\Windows\SYSTEM32\net.exe
              "net.exe" stop NetBackup BMR MTFTP Service /y
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:4204
              • C:\Windows\system32\net1.exe
                C:\Windows\system32\net1 stop NetBackup BMR MTFTP Service /y
                3⤵
                  PID:4336
              • C:\Windows\SYSTEM32\sc.exe
                "sc.exe" config SQLTELEMETRY start= disabled
                2⤵
                  PID:420
                • C:\Windows\SYSTEM32\sc.exe
                  "sc.exe" config SQLTELEMETRY$ECWDB2 start= disabled
                  2⤵
                    PID:808
                  • C:\Windows\SYSTEM32\sc.exe
                    "sc.exe" config SQLWriter start= disabled
                    2⤵
                      PID:352
                    • C:\Windows\SYSTEM32\sc.exe
                      "sc.exe" config SstpSvc start= disabled
                      2⤵
                        PID:1120
                      • C:\Windows\SYSTEM32\taskkill.exe
                        "taskkill.exe" /IM mspub.exe /F
                        2⤵
                        • Kills process with taskkill
                        • Suspicious use of AdjustPrivilegeToken
                        PID:1316
                      • C:\Windows\SYSTEM32\taskkill.exe
                        "taskkill.exe" /IM mydesktopqos.exe /F
                        2⤵
                        • Kills process with taskkill
                        • Suspicious use of AdjustPrivilegeToken
                        PID:1780
                      • C:\Windows\SYSTEM32\taskkill.exe
                        "taskkill.exe" /IM mydesktopservice.exe /F
                        2⤵
                        • Kills process with taskkill
                        • Suspicious use of AdjustPrivilegeToken
                        PID:4428
                      • C:\Windows\SYSTEM32\vssadmin.exe
                        "vssadmin.exe" Delete Shadows /all /quiet
                        2⤵
                        • Interacts with shadow copies
                        PID:4016
                      • C:\Windows\SYSTEM32\vssadmin.exe
                        "vssadmin.exe" resize shadowstorage /for=c: /on=c: /maxsize=401MB
                        2⤵
                        • Interacts with shadow copies
                        PID:2152
                      • C:\Windows\SYSTEM32\vssadmin.exe
                        "vssadmin.exe" resize shadowstorage /for=c: /on=c: /maxsize=unbounded
                        2⤵
                        • Interacts with shadow copies
                        PID:2720
                      • C:\Windows\SYSTEM32\vssadmin.exe
                        "vssadmin.exe" resize shadowstorage /for=d: /on=d: /maxsize=401MB
                        2⤵
                        • Enumerates connected drives
                        • Interacts with shadow copies
                        PID:3644
                      • C:\Windows\SYSTEM32\vssadmin.exe
                        "vssadmin.exe" resize shadowstorage /for=d: /on=d: /maxsize=unbounded
                        2⤵
                        • Enumerates connected drives
                        • Interacts with shadow copies
                        PID:2596
                      • C:\Windows\SYSTEM32\vssadmin.exe
                        "vssadmin.exe" resize shadowstorage /for=e: /on=e: /maxsize=401MB
                        2⤵
                        • Enumerates connected drives
                        • Interacts with shadow copies
                        PID:2544
                      • C:\Windows\SYSTEM32\vssadmin.exe
                        "vssadmin.exe" resize shadowstorage /for=e: /on=e: /maxsize=unbounded
                        2⤵
                        • Enumerates connected drives
                        • Interacts with shadow copies
                        PID:192
                      • C:\Windows\SYSTEM32\vssadmin.exe
                        "vssadmin.exe" resize shadowstorage /for=f: /on=f: /maxsize=401MB
                        2⤵
                        • Enumerates connected drives
                        • Interacts with shadow copies
                        PID:2476
                      • C:\Windows\SYSTEM32\vssadmin.exe
                        "vssadmin.exe" resize shadowstorage /for=f: /on=f: /maxsize=unbounded
                        2⤵
                        • Enumerates connected drives
                        • Interacts with shadow copies
                        PID:1504
                      • C:\Windows\SYSTEM32\vssadmin.exe
                        "vssadmin.exe" resize shadowstorage /for=g: /on=g: /maxsize=401MB
                        2⤵
                        • Enumerates connected drives
                        • Interacts with shadow copies
                        PID:1096
                      • C:\Windows\SYSTEM32\vssadmin.exe
                        "vssadmin.exe" resize shadowstorage /for=g: /on=g: /maxsize=unbounded
                        2⤵
                        • Enumerates connected drives
                        • Interacts with shadow copies
                        PID:4668
                      • C:\Windows\SYSTEM32\vssadmin.exe
                        "vssadmin.exe" resize shadowstorage /for=h: /on=h: /maxsize=401MB
                        2⤵
                        • Enumerates connected drives
                        • Interacts with shadow copies
                        PID:3364
                      • C:\Windows\SYSTEM32\vssadmin.exe
                        "vssadmin.exe" resize shadowstorage /for=h: /on=h: /maxsize=unbounded
                        2⤵
                        • Enumerates connected drives
                        • Interacts with shadow copies
                        PID:2548
                      • C:\Windows\SYSTEM32\vssadmin.exe
                        "vssadmin.exe" Delete Shadows /all /quiet
                        2⤵
                        • Interacts with shadow copies
                        PID:4312
                      • C:\Windows\System32\notepad.exe
                        "C:\Windows\System32\notepad.exe" C:\Users\Admin\Desktop\HELP_ME_RECOVER_MY_FILES.txt
                        2⤵
                        • Opens file in notepad (likely ransom note)
                        PID:1372
                      • C:\Windows\System32\cmd.exe
                        "C:\Windows\System32\cmd.exe" "/C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\4984825fb21206a2f2df5d2c84794f0ac4edea3c48d32e9284338d7082d55024.exe
                        2⤵
                          PID:4052
                          • C:\Windows\system32\choice.exe
                            choice /C Y /N /D Y /T 3
                            3⤵
                              PID:4424
                        • C:\Windows\system32\vssvc.exe
                          C:\Windows\system32\vssvc.exe
                          1⤵
                          • Modifies service
                          • Suspicious use of AdjustPrivilegeToken
                          PID:4544

                        Network

                        MITRE ATT&CK Matrix ATT&CK v6

                        Persistence

                        Winlogon Helper DLL

                        1
                        T1004

                        Modify Existing Service

                        1
                        T1031

                        Defense Evasion

                        File Deletion

                        2
                        T1107

                        Modify Registry

                        2
                        T1112

                        Credential Access

                        Credentials in Files

                        1
                        T1081

                        Discovery

                        Query Registry

                        1
                        T1012

                        Peripheral Device Discovery

                        1
                        T1120

                        System Information Discovery

                        1
                        T1082

                        Collection

                        Data from Local System

                        1
                        T1005

                        Impact

                        Inhibit System Recovery

                        2
                        T1490

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • C:\Users\Admin\Desktop\HELP_ME_RECOVER_MY_FILES.txt
                          MD5

                          c3d7ad70d1db9656197cee62e76604fe

                          SHA1

                          b3cf90792c300abc1a0a0bca43147a62bda2905d

                          SHA256

                          e19ed60af8e949958b60caf007c5d0f29d9e35387e0149196fbb7737cafe60cd

                          SHA512

                          d4fb9ea7ff4568732989f52a4ed3b7a927c6b717992d70cdb919b243701e6535dd6e50e695fecb147692835dc0900cdef9dbd9dbb22a03163b7038880bc52174

                        • memory/192-26-0x0000000000000000-mapping.dmp
                        • memory/352-15-0x0000000000000000-mapping.dmp
                        • memory/416-4-0x0000000000000000-mapping.dmp
                        • memory/420-13-0x0000000000000000-mapping.dmp
                        • memory/744-5-0x0000000000000000-mapping.dmp
                        • memory/808-14-0x0000000000000000-mapping.dmp
                        • memory/1096-29-0x0000000000000000-mapping.dmp
                        • memory/1120-16-0x0000000000000000-mapping.dmp
                        • memory/1316-17-0x0000000000000000-mapping.dmp
                        • memory/1372-34-0x0000000000000000-mapping.dmp
                        • memory/1504-28-0x0000000000000000-mapping.dmp
                        • memory/1780-18-0x0000000000000000-mapping.dmp
                        • memory/2152-21-0x0000000000000000-mapping.dmp
                        • memory/2476-27-0x0000000000000000-mapping.dmp
                        • memory/2544-25-0x0000000000000000-mapping.dmp
                        • memory/2548-32-0x0000000000000000-mapping.dmp
                        • memory/2596-24-0x0000000000000000-mapping.dmp
                        • memory/2720-22-0x0000000000000000-mapping.dmp
                        • memory/3364-31-0x0000000000000000-mapping.dmp
                        • memory/3484-3-0x0000000000000000-mapping.dmp
                        • memory/3644-23-0x0000000000000000-mapping.dmp
                        • memory/3848-8-0x0000000000000000-mapping.dmp
                        • memory/4016-20-0x0000000000000000-mapping.dmp
                        • memory/4052-36-0x0000000000000000-mapping.dmp
                        • memory/4068-9-0x0000000000000000-mapping.dmp
                        • memory/4176-10-0x0000000000000000-mapping.dmp
                        • memory/4204-11-0x0000000000000000-mapping.dmp
                        • memory/4244-6-0x0000000000000000-mapping.dmp
                        • memory/4312-33-0x0000000000000000-mapping.dmp
                        • memory/4336-12-0x0000000000000000-mapping.dmp
                        • memory/4400-7-0x0000000000000000-mapping.dmp
                        • memory/4424-37-0x0000000000000000-mapping.dmp
                        • memory/4428-19-0x0000000000000000-mapping.dmp
                        • memory/4668-30-0x0000000000000000-mapping.dmp
                        • memory/4772-0-0x00007FFF465C0000-0x00007FFF46FAC000-memory.dmp
                          Filesize

                          9.9MB

                        • memory/4772-1-0x0000000000360000-0x0000000000361000-memory.dmp
                          Filesize

                          4KB