Overview

overview

10

Static

static

Endermanch...r5.exe

windows7-x64

10

Endermanch...r5.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    126s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2022 19:08

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General

  • Target

    Endermanch@Cerber5.exe

  • Size

    313KB

  • MD5

    fe1bc60a95b2c2d77cd5d232296a7fa4

  • SHA1

    c07dfdea8da2da5bad036e7c2f5d37582e1cf684

  • SHA256

    b3e1e9d97d74c416c2a30dd11858789af5554cf2de62f577c13944a19623777d

  • SHA512

    266c541a421878e1e175db5d94185c991cec5825a4bc50178f57264f3556080e6fe984ed0380acf022ce659aa1ca46c9a5e97efc25ff46cbfd67b9385fd75f89

  • SSDEEP

    6144:nl578cxdGY87FohbnmM2i8ito7wTmCbL94KCT3OAmK:nl59zH8MiM2z+NLQBN

Score
10/10
cerberdiscoveryevasionransomware

Malware Config

Extracted

Path

\??\c:\_R_E_A_D___T_H_I_S___ISAN7_.txt

Family

cerber

Ransom Note
Hi, I'am CRBR ENCRYPTOR ;) ----- ALL YOUR DOCUMENTS, PH0T0S, DATABASES AND OTHER IMPORTANT FILES HAVE BEEN ENCRYPTED! ----- The only one 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/4866-EB89-FAE0-0098-B4D8 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.1n5mod.top/4866-EB89-FAE0-0098-B4D8 2. http://xpcx6erilkjced3j.19kdeh.top/4866-EB89-FAE0-0098-B4D8 3. http://xpcx6erilkjced3j.1mpsnr.top/4866-EB89-FAE0-0098-B4D8 4. http://xpcx6erilkjced3j.18ey8e.top/4866-EB89-FAE0-0098-B4D8 5. http://xpcx6erilkjced3j.17gcun.top/4866-EB89-FAE0-0098-B4D8 ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://xpcx6erilkjced3j.onion/4866-EB89-FAE0-0098-B4D8

http://xpcx6erilkjced3j.1n5mod.top/4866-EB89-FAE0-0098-B4D8

http://xpcx6erilkjced3j.19kdeh.top/4866-EB89-FAE0-0098-B4D8

http://xpcx6erilkjced3j.1mpsnr.top/4866-EB89-FAE0-0098-B4D8

http://xpcx6erilkjced3j.18ey8e.top/4866-EB89-FAE0-0098-B4D8

http://xpcx6erilkjced3j.17gcun.top/4866-EB89-FAE0-0098-B4D8

Signatures

  • Cerber

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

    ransomwarecerber
  • Blocklisted process makes network request 6 IoCs
  • Contacts a large (1095) amount of remote hosts 1 TTPs

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

    discovery
  • Modifies Windows Firewall 1 TTPs 2 IoCs
    evasion
  • Enumerates connected drives 3 TTPs 24 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). Likely ransomware behaviour.

  • Kills process with taskkill 1 IoCs
    evasion
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Endermanch@Cerber5.exe
    "C:\Users\Admin\AppData\Local\Temp\Endermanch@Cerber5.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1488
    • C:\Windows\SysWOW64\netsh.exe
      C:\Windows\system32\netsh.exe advfirewall set allprofiles state on
      2⤵
      • Modifies Windows Firewall
      PID:1692
    • C:\Windows\SysWOW64\netsh.exe
      C:\Windows\system32\netsh.exe advfirewall reset
      2⤵
      • Modifies Windows Firewall
      PID:1688
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___K3WM_.hta"
      2⤵
      • Blocklisted process makes network request
      • Modifies Internet Explorer settings
      PID:1128
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___85QC8_.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:1520
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /d /c taskkill /f /im "E" > NUL & ping -n 1 127.0.0.1 > NUL & del "C" > NUL && exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1376
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im "E"
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1960
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 1 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2016

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1
T1031

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Network Service Scanning

1
T1046

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1
T1491

Replay Monitor

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Downloads

  • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___85QC8_.txt
    Filesize

    1KB

    MD5

    ab3dd671fb5340f43008c851451f2bb4

    SHA1

    880400572f9316ec9d9d0abc0dd79e81ce64f326

    SHA256

    e80bec99bbc34fdaace7365f3982ff9aab01896de1f70abde6b73de5d0aab43c

    SHA512

    e44e72cdcbbf4a0796f116334f19f0e84db9de4b36acae461317d5161d87725685c4ed8d2879cb429df3fa4c1a6d288bb169b7cf7d48baf84bc9cc2a36e2ebd2

    Download Submit
  • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___K3WM_.hta
    Filesize

    75KB

    MD5

    5d5a79996a7101d03c046373bbdc4fdc

    SHA1

    e606335553a6490fcc074f1933edf29a41b261c3

    SHA256

    85aa901e09ba11eaf0265a3b2b8032d9e894e22ba4c95467545890c7e17ad47f

    SHA512

    c256b9ce0b90bc226207aee845cf7c3eb2bcfc367760528080d8db83c5eb6508d9d070597ae057c9cbaa5c9a6ed91fb98251102b08bfef27cb5b6127f28ae423

    Download Submit
  • memory/1128-61-0x0000000000000000-mapping.dmp
    Download
  • memory/1376-67-0x0000000000000000-mapping.dmp
    Download
  • memory/1488-60-0x0000000000400000-0x0000000000450000-memory.dmp
    Filesize

    320KB

    Download
  • memory/1488-54-0x0000000076681000-0x0000000076683000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1488-56-0x0000000000400000-0x0000000000450000-memory.dmp
    Filesize

    320KB

    Download
  • memory/1488-55-0x00000000001F0000-0x0000000000221000-memory.dmp
    Filesize

    196KB

    Download
  • memory/1488-68-0x0000000000400000-0x0000000000433000-memory.dmp
    Filesize

    204KB

    Download
  • memory/1520-62-0x0000000000000000-mapping.dmp
    Download
  • memory/1688-58-0x0000000000000000-mapping.dmp
    Download
  • memory/1692-57-0x0000000000000000-mapping.dmp
    Download
  • memory/1960-69-0x0000000000000000-mapping.dmp
    Download
  • memory/2016-70-0x0000000000000000-mapping.dmp
    Download