Overview

overview

10

Static

static

bc3b5ef9b1...32.exe

windows7-x64

10

bc3b5ef9b1...32.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    30-12-2022 10:29

Sharing

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General

  • Target

    bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732.exe

  • Size

    56KB

  • MD5

    f7352e7f837f64fb08008a0edcfe5261

  • SHA1

    d8df24afe3e378017660648d88e4fd73e2c4e16b

  • SHA256

    bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732

  • SHA512

    1bd3d41f564e1f3c44c02874df8e94e261a169b58e00a2348f3fd9ce9d3d5df44f3df39713343d02c69ebc597e041280dccb352244d8d3596301e007eec1d84e

  • SSDEEP

    1536:gNeRBl5PT/rx1mzwRMSTdLpJ5qE4ROWUur:gQRrmzwR5Jk/Uur

Score
10/10
phobosevasionpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\users\public\desktop\info.hta

Ransom Note
All your files have been encrypted! All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail [email protected] Write this ID in the title of your message 379B0D18-3437 In case of no answer in 24 hours write us to this e-mail: [email protected] Or write us to the TOX messenger: FF06B9D86CCB0CE9D9AB2B9D26DA1765A134BE2EB2604157233090C1FBB4960B91D235AE736A You can download TOX messenger here https://tox.chat/ You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the tool that will decrypt all your files. Free decryption as guarantee Before paying you can send us up to 3 files for free decryption. The total size of files must be less than 4Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) How to obtain Bitcoins The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price. https://localbitcoins.com/buy_bitcoins Also you can find other places to buy Bitcoins and beginners guide here: http://www.coindesk.com/information/how-can-i-buy-bitcoins/ Attention! Do not rename encrypted files. Do not try to decrypt your data using third party software, it may cause permanent data loss. Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.
URLs

https://tox.chat/

Signatures

  • Phobos

    Phobos ransomware appeared at the beginning of 2019.

    ransomwarephobos
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
    ransomwareevasion
  • Deletes backup catalog 3 TTPs 2 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Modifies Windows Firewall 1 TTPs 2 IoCs
    evasion
  • Modifies extensions of user files 1 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Drops startup file 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops desktop.ini file(s) 64 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 2 IoCs

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

    ransomware
  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
    adwarespyware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732.exe
    "C:\Users\Admin\AppData\Local\Temp\bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732.exe"
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1772
    • C:\Users\Admin\AppData\Local\Temp\bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732.exe
      "C:\Users\Admin\AppData\Local\Temp\bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732.exe"
      2⤵
        PID:1536
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:712
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:596
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1956
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:972
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:1996
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:1608
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1348
        • C:\Windows\system32\netsh.exe
          netsh advfirewall set currentprofile state off
          3⤵
          • Modifies Windows Firewall
          PID:1476
        • C:\Windows\system32\netsh.exe
          netsh firewall set opmode mode=disable
          3⤵
          • Modifies Windows Firewall
          PID:112
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta"
        2⤵
        • Modifies Internet Explorer settings
        PID:1804
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta"
        2⤵
        • Modifies Internet Explorer settings
        PID:944
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "C:\info.hta"
        2⤵
        • Modifies Internet Explorer settings
        PID:224
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1224
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:560
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:596
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:1012
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:1892
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:1136
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:656
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1536
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:1416
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:1688

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\Desktop\info.hta
          Filesize

          5KB

          MD5

          54215f5d15ec51c63616ffca6a452029

          SHA1

          f232f529da6baf348b327a81eea324ffc8ab586d

          SHA256

          ecfbb694a8cde3818f5c8d0b32e4dec4fccc35a7e47dd6c28a23b66081021623

          SHA512

          b0deff345b6b942d4d42b6332ed4276739ca8113989b5a2042c3e47e71dc0198d6e3c94748f2a9cf7b6cfb0e588c2c38f6fbd1036c8f3964d5bc02e59fd27fe5

          Download Submit

        • C:\info.hta
          Filesize

          5KB

          MD5

          54215f5d15ec51c63616ffca6a452029

          SHA1

          f232f529da6baf348b327a81eea324ffc8ab586d

          SHA256

          ecfbb694a8cde3818f5c8d0b32e4dec4fccc35a7e47dd6c28a23b66081021623

          SHA512

          b0deff345b6b942d4d42b6332ed4276739ca8113989b5a2042c3e47e71dc0198d6e3c94748f2a9cf7b6cfb0e588c2c38f6fbd1036c8f3964d5bc02e59fd27fe5

          Download Submit

        • C:\users\public\desktop\info.hta
          Filesize

          5KB

          MD5

          54215f5d15ec51c63616ffca6a452029

          SHA1

          f232f529da6baf348b327a81eea324ffc8ab586d

          SHA256

          ecfbb694a8cde3818f5c8d0b32e4dec4fccc35a7e47dd6c28a23b66081021623

          SHA512

          b0deff345b6b942d4d42b6332ed4276739ca8113989b5a2042c3e47e71dc0198d6e3c94748f2a9cf7b6cfb0e588c2c38f6fbd1036c8f3964d5bc02e59fd27fe5

          Download Submit

        • memory/112-61-0x0000000000000000-mapping.dmp

          Download

        • memory/224-70-0x0000000000000000-mapping.dmp

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        • memory/560-75-0x0000000000000000-mapping.dmp

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        • memory/596-76-0x0000000000000000-mapping.dmp

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        • memory/596-58-0x0000000000000000-mapping.dmp

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        • memory/712-57-0x0000000000000000-mapping.dmp

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        • memory/944-69-0x0000000000000000-mapping.dmp

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        • memory/972-64-0x0000000000000000-mapping.dmp

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        • memory/1012-77-0x0000000000000000-mapping.dmp

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        • memory/1136-79-0x0000000000000000-mapping.dmp

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        • memory/1224-71-0x0000000000000000-mapping.dmp

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        • memory/1348-56-0x0000000000000000-mapping.dmp

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        • memory/1476-60-0x000007FEFBF91000-0x000007FEFBF93000-memory.dmp

          Filesize

          8KB

          Download

        • memory/1476-59-0x0000000000000000-mapping.dmp

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        • memory/1608-66-0x0000000000000000-mapping.dmp

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        • memory/1772-54-0x0000000075C31000-0x0000000075C33000-memory.dmp

          Filesize

          8KB

          Download

        • memory/1804-68-0x0000000000000000-mapping.dmp

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        • memory/1892-78-0x0000000000000000-mapping.dmp

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        • memory/1956-63-0x0000000000000000-mapping.dmp

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        • memory/1996-65-0x0000000000000000-mapping.dmp

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