Overview

overview

10

Static

static

1

2023-04-12...is.exe

windows7-x64

10

2023-04-12...is.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    158s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-04-2023 03:00

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General

  • Target

    2023-04-12_bd3e58a09341d6f40bf9178940ef6603_crysis.exe

  • Size

    92KB

  • MD5

    bd3e58a09341d6f40bf9178940ef6603

  • SHA1

    f613f93fe45dd132e7a7808c4424ee3ea264b5cb

  • SHA256

    abbcff728043498c875932756d21ffde3e4bc5a9681db49eb3d612d57bf0df56

  • SHA512

    6aa4d6b30d5d54a971d2b56b224eaa68f29985ab1557814bcd9465521b82adb478e8be066e154b2004173f845d39c75e446e582e42c4d3a2b8547f0207c316e4

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AWeagaZE/Vbah42oFEln2kHCvT1l7/wlhx4MPx:Qw+asqN5aW/hLQe3B0Hln2kir1ebxvJ

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

Ransom Note
All FILES ENCRYPTED "RSA1024" All YOUR FILES HAVE BEEN ENCRYPTED!!! IF YOU WANT TO RESTORE THEM, WRITE US TO THE E-MAIL [email protected] IN THE LETTER WRITE YOUR ID, YOUR ID 6BD64C55 IF YOU ARE NOT ANSWERED, WRITE TO EMAIL: [email protected] YOUR SECRET KEY WILL BE STORED ON A SERVER 7 DAYS, AFTER 7 DAYS IT MAY BE OVERWRITTEN BY OTHER KEYS, DON'T PULL TIME, WAITING YOUR EMAIL FREE DECRYPTION FOR PROOF You can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) DECRYPTION PROCESS: When you make sure of decryption possibility transfer the money to our bitcoin wallet. As soon as we receive the money we will send you: 1. Decryption program. 2. Detailed instruction for decryption. 3. And individual keys for decrypting your files. !WARNING! 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.

Signatures

  • Dharma

    Dharma is a ransomware that uses security software installation to hide malicious activities.

    ransomwaredharma
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 1 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 5 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 3 IoCs
    persistence
  • Drops desktop.ini file(s) 64 IoCs
  • Drops file in System32 directory 2 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 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\2023-04-12_bd3e58a09341d6f40bf9178940ef6603_crysis.exe
    "C:\Users\Admin\AppData\Local\Temp\2023-04-12_bd3e58a09341d6f40bf9178940ef6603_crysis.exe"
    1⤵
    • Modifies extensions of user files
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1476
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2296
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1300
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:876
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3724
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1064
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3716
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
            PID:820
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:4376
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4616

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe.id-6BD64C55.[[email protected]].qbix
            Filesize

            2.9MB

            MD5

            a9c115645a6ac1afcb927d59f13cbcb4

            SHA1

            d56de288e0634075df307640a1f70ea8cf577fe5

            SHA256

            489f4ae831533734718fd388feade82392a166986971db27d25331b39ada3498

            SHA512

            211435f8eadf54ec039bb064f99a6290d812577d9c98e5c7d4e1dbb3ae8719736dcb360075029c6fa65bd6825fb7ff152ae4ba025df0b46c80a3a98587475663

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          • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
            Filesize

            13KB

            MD5

            271f562226c965735e8e684b2c9692ae

            SHA1

            d85f2817487b8af3724188713a562cf0fde63fbb

            SHA256

            1c4f25916907b82d689cfd20ec61ede826db5b08d0dd234dbfc4a599eeb381e0

            SHA512

            57237f85b05573c7df7244f4e5561c94b465e2b2d7d74d67f996cc5b8ee9d0e36b3e703e92d760bf897f9ac9ac2a3bef97cf90ac985c6a48a1926cc3cb1a68fe

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          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
            Filesize

            13KB

            MD5

            271f562226c965735e8e684b2c9692ae

            SHA1

            d85f2817487b8af3724188713a562cf0fde63fbb

            SHA256

            1c4f25916907b82d689cfd20ec61ede826db5b08d0dd234dbfc4a599eeb381e0

            SHA512

            57237f85b05573c7df7244f4e5561c94b465e2b2d7d74d67f996cc5b8ee9d0e36b3e703e92d760bf897f9ac9ac2a3bef97cf90ac985c6a48a1926cc3cb1a68fe

            Download Submit