Overview

overview

10

Static

static

1ca85c7d73...ce.exe

windows7-x64

10

1ca85c7d73...ce.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    602s
  • max time network
    634s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2022 07:11

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General

  • Target

    1ca85c7d735a4bdc8900acd52f4ec46bf0d0f13908907657175bbf92d82e28ce.exe

  • Size

    55KB

  • MD5

    796e90187c74f7222087d8980c11d37e

  • SHA1

    c6cc5262ccf23915805e3ea50888eb7f1ec8abc3

  • SHA256

    1ca85c7d735a4bdc8900acd52f4ec46bf0d0f13908907657175bbf92d82e28ce

  • SHA512

    c1f802448f1cf55bb3d5800a9d3431a17f97d54e40b1815257b02b255fe2ed7cd1ceade307d56dfa6c44f40ef048da2096a4e87f262d4287359ef694a487c7fb

  • SSDEEP

    1536:tNeRBl5PT/rx1mzwRMSTdLpJy8DFBhoj+:tQRrmzwR5J1DF5

Score
10/10
phobosevasionpersistenceransomwarespywarestealer

Malware Config

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 2 IoCs
    ransomwareevasion
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Modifies Windows Firewall 1 TTPs 2 IoCs
    evasion
  • Modifies extensions of user files 4 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
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1ca85c7d735a4bdc8900acd52f4ec46bf0d0f13908907657175bbf92d82e28ce.exe
    "C:\Users\Admin\AppData\Local\Temp\1ca85c7d735a4bdc8900acd52f4ec46bf0d0f13908907657175bbf92d82e28ce.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:960
    • C:\Users\Admin\AppData\Local\Temp\1ca85c7d735a4bdc8900acd52f4ec46bf0d0f13908907657175bbf92d82e28ce.exe
      "C:\Users\Admin\AppData\Local\Temp\1ca85c7d735a4bdc8900acd52f4ec46bf0d0f13908907657175bbf92d82e28ce.exe"
      2⤵
        PID:912
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1128
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:980
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1012
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:1524
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:1168
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:832
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1876
        • C:\Windows\system32\netsh.exe
          netsh advfirewall set currentprofile state off
          3⤵
          • Modifies Windows Firewall
          PID:1456
        • C:\Windows\system32\netsh.exe
          netsh firewall set opmode mode=disable
          3⤵
          • Modifies Windows Firewall
          PID:1916
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:544
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:928
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:1648
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:936

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/960-54-0x0000000075761000-0x0000000075763000-memory.dmp

          Filesize

          8KB

          Download

        • memory/1456-59-0x000007FEFBF81000-0x000007FEFBF83000-memory.dmp

          Filesize

          8KB

          Download