Overview

overview

10

Static

static

3

2272954a2c...5a.exe

windows7-x64

10

2272954a2c...5a.exe

windows10-2004-x64

10

72716d15ea...21.exe

windows7-x64

7

72716d15ea...21.exe

windows10-2004-x64

7

Bit Paymer.exe

windows7-x64

10

Bit Paymer.exe

windows10-2004-x64

10

KeepCalm.exe

windows7-x64

1

KeepCalm.exe

windows10-2004-x64

1

LockedIn.exe

windows7-x64

9

LockedIn.exe

windows10-2004-x64

9

NotPetya.dll

windows7-x64

10

NotPetya.dll

windows10-2004-x64

10

Purge.exe

windows7-x64

1

Purge.exe

windows10-2004-x64

1

Scarab.exe

windows7-x64

10

Scarab.exe

windows10-2004-x64

10

a631ad1b1a...4b.exe

windows7-x64

6

a631ad1b1a...4b.exe

windows10-2004-x64

6

a9053a3a52...bc.exe

windows7-x64

7

a9053a3a52...bc.exe

windows10-2004-x64

7

b764629e1f...1c.exe

windows7-x64

10

b764629e1f...1c.exe

windows10-2004-x64

10

cf89f70633...5c.exe

windows7-x64

1

cf89f70633...5c.exe

windows10-2004-x64

3

e951e82867...50.exe

windows7-x64

1

e951e82867...50.exe

windows10-2004-x64

1

fa0c321e1a...d2.exe

windows7-x64

9

fa0c321e1a...d2.exe

windows10-2004-x64

8

fc184274ad...27.exe

windows7-x64

10

fc184274ad...27.exe

windows10-2004-x64

10

Resubmissions

18-07-2024 07:25

240718-h84wjs1hpb 10

18-07-2024 07:19

240718-h51pqa1gng 10

17-07-2024 20:55

240717-zqkhmaydmq 10

17-07-2024 19:21

240717-x2pwdaycjb 10

Analysis

  • max time kernel
    139s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-07-2024 20:55

Sharing

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General

  • Target

    fc184274ad3908021e4c8ef28f35dc77447ed6457375d2a4e7b411955e042527.exe

  • Size

    268KB

  • MD5

    d3fdd9807a32f5c27c14879336762119

  • SHA1

    73132972d130adb7106e6b9319b21856434eff65

  • SHA256

    fc184274ad3908021e4c8ef28f35dc77447ed6457375d2a4e7b411955e042527

  • SHA512

    87468ab4136f449cab6e3689b4460de6dc59421ad20ce8208e251b3e4ef63f4ac281288ec51a35469e2473328de8b45b487cd72f40ba72d304a44b89a99a7a80

  • SSDEEP

    6144:IXJ6Mv/PMB5lZOx4ccuiA8HYVVo7bBPxwdNaLvo:KJf/kBrZOxfwAsYVVoZZwdNaE

Score
10/10
cerberdiscoveryevasionpersistenceprivilege_escalationransomware

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Microsoft\OneNote\16.0\cache\_R_E_A_D___T_H_I_S___HMHY_.txt

Family

cerber

Ransom Note
Hi, I'am CRBR ENCRYPTOR ;) ----- YOUR DOCUMENTS, PHOTOS, DATABASES AND OTHER IMPORTANT FILES HAVE BEEN ENCRYPTED! ----- The only way to decrypt your files is to receive the private key and decryption program. To receive the private key and decryption program go to any decrypted folder, inside there is the special file (*_R_E_A_D___T_H_I_S_*) with complete instructions how to decrypt your files. If you cannot find any (*_R_E_A_D___T_H_I_S_*) file at your PC, follow the instructions below: ----- 1. Download "Tor Browser" from https://www.torproject.org/ and install it. 2. In the "Tor Browser" open your personal page here: http://xpcx6erilkjced3j.onion/4777-B407-78CB-005C-9E78 Note! This page is available via "Tor Browser" only. ----- Also you can use temporary addresses on your personal page without using "Tor Browser". ----- 1. http://xpcx6erilkjced3j.1t2jhk.top/4777-B407-78CB-005C-9E78 2. http://xpcx6erilkjced3j.1e6ly3.top/4777-B407-78CB-005C-9E78 3. http://xpcx6erilkjced3j.1ewuh5.top/4777-B407-78CB-005C-9E78 4. http://xpcx6erilkjced3j.15ezkm.top/4777-B407-78CB-005C-9E78 5. http://xpcx6erilkjced3j.16umxg.top/4777-B407-78CB-005C-9E78 ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://xpcx6erilkjced3j.onion/4777-B407-78CB-005C-9E78

http://xpcx6erilkjced3j.1t2jhk.top/4777-B407-78CB-005C-9E78

http://xpcx6erilkjced3j.1e6ly3.top/4777-B407-78CB-005C-9E78

http://xpcx6erilkjced3j.1ewuh5.top/4777-B407-78CB-005C-9E78

http://xpcx6erilkjced3j.15ezkm.top/4777-B407-78CB-005C-9E78

http://xpcx6erilkjced3j.16umxg.top/4777-B407-78CB-005C-9E78

Signatures

  • Cerber

    Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.

    ransomwarecerber
  • Contacts a large (1103) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

    discovery
  • Modifies Windows Firewall 2 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 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in System32 directory 38 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 20 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • Kills process with taskkill 1 IoCs
    evasion
  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc184274ad3908021e4c8ef28f35dc77447ed6457375d2a4e7b411955e042527.exe
    "C:\Users\Admin\AppData\Local\Temp\fc184274ad3908021e4c8ef28f35dc77447ed6457375d2a4e7b411955e042527.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Enumerates connected drives
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5024
    • C:\Windows\SysWOW64\netsh.exe
      C:\Windows\system32\netsh.exe advfirewall set allprofiles state on
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      PID:4060
    • C:\Windows\SysWOW64\netsh.exe
      C:\Windows\system32\netsh.exe advfirewall reset
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      PID:1688
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___6CQJU_.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
      2⤵
        PID:3780
      • C:\Windows\SysWOW64\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___A7Q6G8_.txt
        2⤵
        • Opens file in notepad (likely ransom note)
        PID:4572
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /d /c taskkill /f /im "fc184274ad3908021e4c8ef28f35dc77447ed6457375d2a4e7b411955e042527.exe" > NUL & ping -n 1 127.0.0.1 > NUL & del "C:\Users\Admin\AppData\Local\Temp\fc184274ad3908021e4c8ef28f35dc77447ed6457375d2a4e7b411955e042527.exe" > NUL && exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3116
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im "fc184274ad3908021e4c8ef28f35dc77447ed6457375d2a4e7b411955e042527.exe"
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1504
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 1 127.0.0.1
          3⤵
          • Runs ping.exe
          PID:5004

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\OneNote\16.0\cache\_R_E_A_D___T_H_I_S___HMHY_.txt
      Filesize

      1KB

      MD5

      a314c29eb2e4c8de11c5c24966bb7578

      SHA1

      7d00368359756405ab6462a943ab54af364059ad

      SHA256

      94e3647219ab80595cd24704b5883b4addddd07c9d9edf9ef7ef406966b5c7d8

      SHA512

      287022f7cd834d5135dd9ab266bcc38223f287fb3d7e3ca66e6f559d5b8dfaf0578ea4c8e0d80bd8f2e8e23c3a58184e1c1bb1f05918c1fb171ce922d2f38f00

      Download Submit

    • C:\Users\Admin\AppData\Roaming\Microsoft\OneNote\16.0\_R_E_A_D___T_H_I_S___6X269XJZ_.hta
      Filesize

      75KB

      MD5

      133c2c80625dbd1da0ebd70a0a5998de

      SHA1

      805eaad041be3ba1aa68da8c9a2c91ef4b535354

      SHA256

      b65ff46d8147078104e199dead2629b2c5d5ac7e436a41999b649fefabce9f2c

      SHA512

      7b1cf7556be7f71d44abe189306b9caf5af5b3e4f2f02a4889791b907d3270665fede092ddcbd1ad2800e0a06e93d3a1138a427c77d7c00b36f5101ade1a7f6a

      Download Submit

    • memory/5024-0-0x00000000021A0000-0x00000000021CE000-memory.dmp

      Filesize

      184KB

      Download

    • memory/5024-1-0x0000000000400000-0x0000000000431000-memory.dmp

      Filesize

      196KB

      Download

    • memory/5024-2-0x0000000000400000-0x0000000000431000-memory.dmp

      Filesize

      196KB

      Download

    • memory/5024-6-0x0000000000400000-0x0000000000431000-memory.dmp

      Filesize

      196KB

      Download

    • memory/5024-387-0x0000000000400000-0x0000000000431000-memory.dmp

      Filesize

      196KB

      Download

    • memory/5024-386-0x0000000000400000-0x0000000000431000-memory.dmp

      Filesize

      196KB

      Download

    • memory/5024-408-0x0000000000400000-0x0000000000431000-memory.dmp

      Filesize

      196KB

      Download