Analysis

  • max time kernel
    144s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2024 16:15

General

  • Target

    17162c71ce2d80958f522db0120136fb4dd06e3a6d39052bb2a582af82e2dac7.exe

  • Size

    823KB

  • MD5

    be87a7809c51f7fd3322ca3ed89a403e

  • SHA1

    56bd690fa317066c0643d1224f384b92111a03bb

  • SHA256

    17162c71ce2d80958f522db0120136fb4dd06e3a6d39052bb2a582af82e2dac7

  • SHA512

    c45c4a5b69de0040d931354697b3b3c940c22d559f7460df56930d4b564917246597c33d82f8ede6e5f24114e2afc6061b77a163b0961954259c6340c2eec567

  • SSDEEP

    12288:dgH8tsCSSJL8LklKIa+vacenxFTNXS+Mnj+SVgnGH+H6F0/eXRax78R:UoJIsFKnHExniSVgGHJF6F8

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/fhsgtsspen6/get.php

Attributes
  • extension

    .uigd

  • offline_id

    1WQ4dDSY8AVihbECj8VLUDhHWpSCoV5it0bIDjt1

  • payload_url

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

    http://fuyt.org/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-kilPVod4em 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: 0423Jsfkjn

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 17 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • 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.

  • Suspicious use of SetThreadContext 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).

  • System Location Discovery: System Language Discovery 1 TTPs 7 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 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\17162c71ce2d80958f522db0120136fb4dd06e3a6d39052bb2a582af82e2dac7.exe
    "C:\Users\Admin\AppData\Local\Temp\17162c71ce2d80958f522db0120136fb4dd06e3a6d39052bb2a582af82e2dac7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3556
    • C:\Users\Admin\AppData\Local\Temp\OCeQ.exe
      C:\Users\Admin\AppData\Local\Temp\OCeQ.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4288
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5bc00222.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3524
    • C:\Users\Admin\AppData\Local\Temp\17162c71ce2d80958f522db0120136fb4dd06e3a6d39052bb2a582af82e2dac7.exe
      "C:\Users\Admin\AppData\Local\Temp\17162c71ce2d80958f522db0120136fb4dd06e3a6d39052bb2a582af82e2dac7.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4368
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\a5300e00-4355-4ab4-81ab-f5cc83178b4e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:1152
      • C:\Users\Admin\AppData\Local\Temp\17162c71ce2d80958f522db0120136fb4dd06e3a6d39052bb2a582af82e2dac7.exe
        "C:\Users\Admin\AppData\Local\Temp\17162c71ce2d80958f522db0120136fb4dd06e3a6d39052bb2a582af82e2dac7.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4668
        • C:\Users\Admin\AppData\Local\Temp\17162c71ce2d80958f522db0120136fb4dd06e3a6d39052bb2a582af82e2dac7.exe
          "C:\Users\Admin\AppData\Local\Temp\17162c71ce2d80958f522db0120136fb4dd06e3a6d39052bb2a582af82e2dac7.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:1112

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

    213065dbb5a2538398f0da936c636880

    SHA1

    26e78a1fc2fd948f4e9853988f6293b3e3f3c3e9

    SHA256

    acfab3e7cdf9fdb9a916769c3ee22f75f53bc8e18e9023c09f0403d2bfb3f9c7

    SHA512

    9f404f64e99234f97cd793108eefebc7048795d641b4f75a01a491d64b8badbf365725dac0a756c6690d898de0d5f1804fe855d07d734bda28870f81cc86a766

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

    Filesize

    170B

    MD5

    9033a6516b17962da4831e8656179667

    SHA1

    1ab8f93a9da11d633767d0794c75001f84ecc0ff

    SHA256

    d81ae06ad25afb2ba47873d788240c672cea82cefd63d033529c9fff9ccc577c

    SHA512

    8ef88a411e32bbfd5a50d306a4e7dd7a8cf11d06c716543a58fbde84c00e8da46e649cd20eca9079f1f03b6a1ed59eef7f60d8ef71fb9081821bae208e68963a

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\3WWFCFW4\k1[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\5bc00222.bat

    Filesize

    183B

    MD5

    68667e8571be24780cb949776d622329

    SHA1

    e439084487f6e698424fafd1a96164b37ef835f0

    SHA256

    d5cc603213c16cbb998064fc47370c6bd5ff8a90d7ecc108eea860c716a7bd9b

    SHA512

    a8197cfc5d3cbf48faaa1ec49e7670dedab5dc8968df234a17cebb949c316de3701498e930041941bf39e51447edc2c23abc4b1e5c214a94bda85ca6b51cc57f

  • C:\Users\Admin\AppData\Local\Temp\7D5D4CEC.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • C:\Users\Admin\AppData\Local\Temp\OCeQ.exe

    Filesize

    15KB

    MD5

    f7d21de5c4e81341eccd280c11ddcc9a

    SHA1

    d4e9ef10d7685d491583c6fa93ae5d9105d815bd

    SHA256

    4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

    SHA512

    e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

  • C:\Users\Admin\AppData\Local\a5300e00-4355-4ab4-81ab-f5cc83178b4e\17162c71ce2d80958f522db0120136fb4dd06e3a6d39052bb2a582af82e2dac7.exe

    Filesize

    823KB

    MD5

    be87a7809c51f7fd3322ca3ed89a403e

    SHA1

    56bd690fa317066c0643d1224f384b92111a03bb

    SHA256

    17162c71ce2d80958f522db0120136fb4dd06e3a6d39052bb2a582af82e2dac7

    SHA512

    c45c4a5b69de0040d931354697b3b3c940c22d559f7460df56930d4b564917246597c33d82f8ede6e5f24114e2afc6061b77a163b0961954259c6340c2eec567

  • memory/1112-84-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1112-98-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1112-83-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1112-103-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1112-102-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1112-101-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1112-100-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1112-85-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1112-77-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1112-89-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1112-75-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3556-0-0x0000000000400000-0x00000000004FB000-memory.dmp

    Filesize

    1004KB

  • memory/3556-11-0x0000000002370000-0x000000000248B000-memory.dmp

    Filesize

    1.1MB

  • memory/3556-10-0x0000000002170000-0x000000000220F000-memory.dmp

    Filesize

    636KB

  • memory/3556-15-0x0000000000400000-0x00000000004FB000-memory.dmp

    Filesize

    1004KB

  • memory/4288-71-0x0000000000320000-0x0000000000329000-memory.dmp

    Filesize

    36KB

  • memory/4288-5-0x0000000000320000-0x0000000000329000-memory.dmp

    Filesize

    36KB

  • memory/4368-13-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4368-14-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4368-12-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4368-65-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4368-16-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4668-78-0x0000000000400000-0x00000000004FB000-memory.dmp

    Filesize

    1004KB

  • memory/4668-66-0x0000000000400000-0x00000000004FB000-memory.dmp

    Filesize

    1004KB