Resubmissions

04-04-2024 18:10

240404-wscc9afa67 10

04-04-2024 03:22

240404-dw4mssdg95 10

Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04-04-2024 03:22

General

  • Target

    220518-1mgg8seec9.exe

  • Size

    360KB

  • MD5

    9ce01dfbf25dfea778e57d8274675d6f

  • SHA1

    1bd767beb5bc36b396ca6405748042640ad57526

  • SHA256

    5343947829609f69e84fe7e8172c38ee018ede3c9898d4895275f596ac54320d

  • SHA512

    d6ba89c1f221a94e3061bc4da896760d99935a7c766b8e4e30146266cf3356acd883835e75dbb86574bc869c83d381c8f63f23392101f6062bba4343af49978b

  • SSDEEP

    6144:4qZbqZToxIizLBZ6R56VkGM4ceLJ5vs5JGJceO/QCErIiuNAvwu:4qZb8oR3D6R5QHXZJy/Q50imAvB

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\_RECOVERY_+fklnh.txt

Family

teslacrypt

Ransom Note
NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files were protected by a strong encryption with AES More information about the encryption keys using AES can be found here: http://en.wikipedia.org/wiki/AES How did this happen ? !!! Specially for your PC was generated personal AES KEY, both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. !!! Decrypting of your files is only possible with the help of the private key and decrypt program , which is on our Secret Server What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BITCOIN NOW! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1. http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/A5A3E62527059DA 2. http://tes543berda73i48fsdfsd.keratadze.at/A5A3E62527059DA 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/A5A3E62527059DA If for some reasons the addresses are not available, follow these steps: 1. Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2. After a successful installation, run the browser 3. Type in the address bar: xlowfznrg4wf7dli.onion/A5A3E62527059DA 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/A5A3E62527059DA http://tes543berda73i48fsdfsd.keratadze.at/A5A3E62527059DA http://tt54rfdjhb34rfbnknaerg.milerteddy.com/A5A3E62527059DA *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/A5A3E62527059DA
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/A5A3E62527059DA

http://tes543berda73i48fsdfsd.keratadze.at/A5A3E62527059DA

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/A5A3E62527059DA

http://xlowfznrg4wf7dli.ONION/A5A3E62527059DA

Signatures

  • TeslaCrypt, AlphaCrypt

    Ransomware based on CryptoLocker. Shut down by the developers in 2016.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Renames multiple (285) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • System policy modification 1 TTPs 2 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\220518-1mgg8seec9.exe
    "C:\Users\Admin\AppData\Local\Temp\220518-1mgg8seec9.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2120
    • C:\Windows\uwjbkwlsmhtn.exe
      C:\Windows\uwjbkwlsmhtn.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:3068
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2416
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\220518~1.EXE
      2⤵
      • Deletes itself
      PID:2632
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1176

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\_RECOVERY_+fklnh.html

    Filesize

    11KB

    MD5

    59ee090340894603c62889dbf42c320e

    SHA1

    56a0a286629efa772c7e6fc09d6c38e5ff3d9ec0

    SHA256

    2c1833e690d391e5f731a73070209b68531a89992b77faf0c09f5f4885923564

    SHA512

    81d317f1f80a56227d7a78c20d3d1681f294a67bd0c743dcfbd2e8cc42a6bf6cba7797fb9b324077bc2c234abc83dd8ec40ecb86f640299fccdc3d32f76c8742

  • C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\_RECOVERY_+fklnh.png

    Filesize

    62KB

    MD5

    c2d6a8b47c331787ae10d730c2bc9ebb

    SHA1

    3927f1e29deccff936c6d7fdb4af495408564315

    SHA256

    34ca67015ffa6c4947fae5dc4192c68a60a93919ab31ea81e7b961f91c7bc528

    SHA512

    3abf5cbc68476a7917abcde480d8daafc7e6607ac78093445dabceb9030616618d52e5dc58b59d23932e053b50f18aacd47575545b2537a28fb364d5afe81dc9

  • C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\_RECOVERY_+fklnh.txt

    Filesize

    1KB

    MD5

    f989b67b38ff30c098ee34c6416a2fa2

    SHA1

    dac231748b835b386cd52dda937a112ebec5b2cd

    SHA256

    bc20506693865ee12b29babc47c68f89cb12db7b5112dfab94f608fe3a5c32d4

    SHA512

    0ae6eb075800cff6182abafd772e4e2e1f2969afc52d9ed3c8f89eb1774696769f1ac0041f22c3685cfedec0ec131e532622ca38fd7b39f5e8555933aca65569

  • C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.ssl.feature_1.0.0.v20140827-1444\asl-v20.txt

    Filesize

    11KB

    MD5

    49f542445e13a509a44bc1d39c940212

    SHA1

    cdb8afff0f3118f344fecae71a865f2c83c6b924

    SHA256

    f88451d3c41722a759df668ee70c0df366ad8c462b970de8a3bce5eae272e08d

    SHA512

    23e5f90230f2261dcb7bfbc07a3cf7c1cb63b699411dc6d410b7abc7449e615d5447be584694fc5f6c15d2e18222cd30a95c10ff8dc4e2928b8543c2b5d94d25

  • C:\Program Files\Java\jre7\THIRDPARTYLICENSEREADME-JAVAFX.txt

    Filesize

    109KB

    MD5

    9486e338e767b8d39de0a7412f422dcf

    SHA1

    d920a79cb283dbae7fadb48f70e03d9847720a3c

    SHA256

    3aabfa988ab6e9111f9a37045b70ab3d64bae662ba489a6a6edf92f3c03cc209

    SHA512

    b2095a945dd3438e91903eae666c6e50483f33a0c6e2a4db8ee7a04d8d07afd05c17ad5be0763561186119dc2bfb4c215d4157fefea33c499b6d870de18c40c8

  • C:\Program Files\Java\jre7\THIRDPARTYLICENSEREADME.txt

    Filesize

    173KB

    MD5

    27013592f027794903669278dc6ea371

    SHA1

    7afbffcfb4c2ff69183d8c9f6e7aafc3c87a8ef1

    SHA256

    3900aec353b9e1c9bce53265a40dc9f1f726187892a2d4cb2dd2b08546d182aa

    SHA512

    976d0ba0c3ccb419e3f290d49fc7c6670fbb4b2495a8ec143c9531cf521944ba63d93caa6e0382830e3e0c79b317de3f99127bcafb09efe3cf7658194d2fa401

  • C:\Windows\uwjbkwlsmhtn.exe

    Filesize

    360KB

    MD5

    9ce01dfbf25dfea778e57d8274675d6f

    SHA1

    1bd767beb5bc36b396ca6405748042640ad57526

    SHA256

    5343947829609f69e84fe7e8172c38ee018ede3c9898d4895275f596ac54320d

    SHA512

    d6ba89c1f221a94e3061bc4da896760d99935a7c766b8e4e30146266cf3356acd883835e75dbb86574bc869c83d381c8f63f23392101f6062bba4343af49978b

  • memory/2120-0-0x0000000000370000-0x00000000003F5000-memory.dmp

    Filesize

    532KB

  • memory/2120-1-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/2120-11-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/2120-12-0x0000000000370000-0x00000000003F5000-memory.dmp

    Filesize

    532KB

  • memory/3068-103-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/3068-880-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/3068-220-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/3068-735-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/3068-794-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/3068-844-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/3068-863-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/3068-100-0x0000000000270000-0x00000000002F5000-memory.dmp

    Filesize

    532KB

  • memory/3068-97-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/3068-1289-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/3068-18-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/3068-14-0x0000000000270000-0x00000000002F5000-memory.dmp

    Filesize

    532KB

  • memory/3068-2674-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/3068-3838-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB