Overview

overview

10

Static

static

7

samples3.zip

windows7-x64

1

samples3.zip

windows10-2004-x64

1

05cf6eee9b...b3.exe

windows7-x64

1

05cf6eee9b...b3.exe

windows10-2004-x64

1

0d332c0478...a7.exe

windows7-x64

9

0d332c0478...a7.exe

windows10-2004-x64

9

0fd8500fde...1e.exe

windows7-x64

1

0fd8500fde...1e.exe

windows10-2004-x64

1

11edf9436a...ed.pdf

windows7-x64

1

11edf9436a...ed.pdf

windows10-2004-x64

1

19a640415b...5c.exe

windows7-x64

10

19a640415b...5c.exe

windows10-2004-x64

10

33aa57b04b...cb.exe

windows7-x64

6

33aa57b04b...cb.exe

windows10-2004-x64

6

3643464a22...19.exe

windows7-x64

3

3643464a22...19.exe

windows10-2004-x64

3

37e2f97755...26.exe

windows7-x64

1

37e2f97755...26.exe

windows10-2004-x64

1

54cd11236f...ff.exe

windows7-x64

6

54cd11236f...ff.exe

windows10-2004-x64

6

55bc661ad4...8c.exe

windows7-x64

9

55bc661ad4...8c.exe

windows10-2004-x64

7

603d665f09...68.exe

windows7-x64

1

603d665f09...68.exe

windows10-2004-x64

1

6ea27a0861...7e.exe

windows7-x64

1

6ea27a0861...7e.exe

windows10-2004-x64

3

73af283fcb...0c.exe

windows7-x64

8

73af283fcb...0c.exe

windows10-2004-x64

8

7e41197b74...67.exe

windows7-x64

9

7e41197b74...67.exe

windows10-2004-x64

9

a878fed055...99.exe

windows7-x64

3

a878fed055...99.exe

windows10-2004-x64

3

Analysis

  • max time kernel
    167s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-01-2024 15:27

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    19a640415bb2bbc2f2624c204f6c5771b908b6c54b88976eb0daa76a29af255c.exe

  • Size

    145KB

  • MD5

    fd946ba0ca811f8f5cddba5c4634fd64

  • SHA1

    02536e5089857fd7421a50adb07fe871593d5b9f

  • SHA256

    19a640415bb2bbc2f2624c204f6c5771b908b6c54b88976eb0daa76a29af255c

  • SHA512

    b50b8bbd93bf00e9d89cadc99900211d5b7a3d3e0f5d450445435ea498ee58be80151f608912244f55e9ad2f907fa896f66389d987b8d3b1a470ad257d7414e8

  • SSDEEP

    3072:Tv/FR9m6kfHpVC1pY8iblkCIax6CdAje+QlLC+Q/eJRhz8Jmu+X:j/f9m6g42xqQVSD

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 4 IoCs
    ransomwareevasion
  • Modifies Windows Firewall 1 TTPs 2 IoCs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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).

  • Program crash 1 IoCs
  • Interacts with shadow copies 2 TTPs 2 IoCs

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

    ransomware
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\19a640415bb2bbc2f2624c204f6c5771b908b6c54b88976eb0daa76a29af255c.exe
    "C:\Users\Admin\AppData\Local\Temp\19a640415bb2bbc2f2624c204f6c5771b908b6c54b88976eb0daa76a29af255c.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4568
    • C:\Users\Admin\AppData\Local\Temp\19a640415bb2bbc2f2624c204f6c5771b908b6c54b88976eb0daa76a29af255c.exe
      "C:\Users\Admin\AppData\Local\Temp\19a640415bb2bbc2f2624c204f6c5771b908b6c54b88976eb0daa76a29af255c.exe"
      2⤵
        PID:4176
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4176 -s 396
          3⤵
          • Program crash
          PID:4624
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4236
        • C:\Windows\system32\netsh.exe
          netsh advfirewall set currentprofile state off
          3⤵
          • Modifies Windows Firewall
          PID:4984
        • C:\Windows\system32\netsh.exe
          netsh firewall set opmode mode=disable
          3⤵
          • Modifies Windows Firewall
          PID:3384
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3888
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4420
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:3064
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:4692
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
        2⤵
          PID:3360
        • C:\Windows\SysWOW64\mshta.exe
          "C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
          2⤵
            PID:3304
          • C:\Windows\SysWOW64\mshta.exe
            "C:\Windows\SysWOW64\mshta.exe" "C:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
            2⤵
              PID:4084
            • C:\Windows\system32\cmd.exe
              "C:\Windows\system32\cmd.exe"
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:3452
              • C:\Windows\system32\vssadmin.exe
                vssadmin delete shadows /all /quiet
                3⤵
                • Interacts with shadow copies
                PID:832
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic shadowcopy delete
                3⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:3356
              • C:\Windows\system32\bcdedit.exe
                bcdedit /set {default} bootstatuspolicy ignoreallfailures
                3⤵
                • Modifies boot configuration data using bcdedit
                PID:268
              • C:\Windows\system32\bcdedit.exe
                bcdedit /set {default} recoveryenabled no
                3⤵
                • Modifies boot configuration data using bcdedit
                PID:1748
            • C:\Windows\SysWOW64\mshta.exe
              "C:\Windows\SysWOW64\mshta.exe" "F:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
              2⤵
                PID:3392
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4176 -ip 4176
              1⤵
                PID:3940
              • C:\Windows\system32\vssadmin.exe
                vssadmin delete shadows /all /quiet
                1⤵
                • Interacts with shadow copies
                PID:1472
              • C:\Windows\system32\vssvc.exe
                C:\Windows\system32\vssvc.exe
                1⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:3552

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • memory/4176-5-0x0000000000400000-0x00000000004B8000-memory.dmp
                Filesize

                736KB

                Download
              • memory/4176-4-0x00000000007B0000-0x00000000008B0000-memory.dmp
                Filesize

                1024KB

                Download
              • memory/4568-1-0x0000000000590000-0x0000000000690000-memory.dmp
                Filesize

                1024KB

                Download
              • memory/4568-2-0x0000000000400000-0x00000000004B8000-memory.dmp
                Filesize

                736KB

                Download
              • memory/4568-554-0x0000000000400000-0x00000000004B8000-memory.dmp
                Filesize

                736KB

                Download
              • memory/4568-2220-0x0000000000400000-0x00000000004B8000-memory.dmp
                Filesize

                736KB

                Download
              • memory/4568-4724-0x0000000000590000-0x0000000000690000-memory.dmp
                Filesize

                1024KB

                Download
              • memory/4568-5095-0x0000000000400000-0x00000000004B8000-memory.dmp
                Filesize

                736KB

                Download