Analysis

  • max time kernel
    118s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    08-08-2024 11:16

General

  • Target

    2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe

  • Size

    1.1MB

  • MD5

    c11cf10ac6c3b434565b929ddf84c534

  • SHA1

    622e89291e0de0043f1daa5344d8d90fb26e8bb6

  • SHA256

    8268b6324c6890e1c93813ebbef9164c962af7be7a67f930c00e7879e1115014

  • SHA512

    19c1fc5740ea8d100d8d7df332a21038562a650a2c97e681db6ee19ff17bc56450d69dd96f8f30ae169475856d4fde2fad479acb93ee06e0e63dd9dd1a2a8971

  • SSDEEP

    24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8BWQHUq7:F0dwAYZt6C31WeTVRPOhB7Uq7

Malware Config

Extracted

Family

djvu

C2

http://drampik.com/test1/get.php

Attributes
  • extension

    .mzqw

  • offline_id

    ex4uvTKsM2vEkIcr3MjXi2C6v27h1mS682iUXGt1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://drampik.com/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-cud8EGMtyB Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0635JOsie

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 1 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2924
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\ef1b9148-c49a-4738-8b4d-4c224b48f575" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:2720
    • C:\Users\Admin\AppData\Local\Temp\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2836

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

    Filesize

    1KB

    MD5

    7fb5fa1534dcf77f2125b2403b30a0ee

    SHA1

    365d96812a69ac0a4611ea4b70a3f306576cc3ea

    SHA256

    33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

    SHA512

    a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8

    Filesize

    436B

    MD5

    971c514f84bba0785f80aa1c23edfd79

    SHA1

    732acea710a87530c6b08ecdf32a110d254a54c8

    SHA256

    f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

    SHA512

    43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

    Filesize

    174B

    MD5

    4ba4d1166baf6d62c549a86268ff3963

    SHA1

    839d1bd68a26bf9138946a30bfa333999154f36c

    SHA256

    5d77478bb2fe9c0aecb41ac0902cf225bc2c8291c006d89cb5da0dd66200eabd

    SHA512

    8656eddc6d9ed1b476c819e30905bbf7f380f4b8f1a000bdf1a65696ad90505b34c81d388b03b8b108eca32480288a20ba286ef41dc12e462659fa4263449252

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    bc931dcf6689f3e214756691c7befe9f

    SHA1

    b2c5b0289b153d0023945aee62798a73182d8df2

    SHA256

    446771ab43a30081818d4d65a9523dab795b3b2afe10d052927a5a3b8d263a6d

    SHA512

    ab58245defc5c825ca8ff2fd3e2f66a092c36313ade714b2e111e6e4bcf76ad145d05424d1957ea047b190649a0dbed2e802ffb6fa548a1168eafe6d249cd0c1

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8

    Filesize

    170B

    MD5

    3080162e13fa8df3165464c2b6aaef50

    SHA1

    008276cd63c70ec44a000780579c57e5dd7f1f4d

    SHA256

    77e5b3f443639bead9b124f9bc5eae773225e6880722d74bb65366b415046a8e

    SHA512

    6b9fdc4a87f488378792bdd32c655be7b1283b161596dc99a6c94d67f3dc1219bfad752abc6a78569aa6184abe09d7e5d7fc91fdf7eb8b13c91d7259368d2438

  • C:\Users\Admin\AppData\Local\Temp\Cab3C8.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\ef1b9148-c49a-4738-8b4d-4c224b48f575\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe

    Filesize

    1.1MB

    MD5

    c11cf10ac6c3b434565b929ddf84c534

    SHA1

    622e89291e0de0043f1daa5344d8d90fb26e8bb6

    SHA256

    8268b6324c6890e1c93813ebbef9164c962af7be7a67f930c00e7879e1115014

    SHA512

    19c1fc5740ea8d100d8d7df332a21038562a650a2c97e681db6ee19ff17bc56450d69dd96f8f30ae169475856d4fde2fad479acb93ee06e0e63dd9dd1a2a8971