Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    10/09/2022, 08:32

General

  • Target

    d78b15ac62e9d735e11f74a115d79a2d145bec3d8bc64ecadab696f31e7f0584.exe

  • Size

    832KB

  • MD5

    20a25d70f0c30355f4a6506bdff1dea5

  • SHA1

    325aa6a8c7b508493fb2490232e8fff07dc56e7a

  • SHA256

    d78b15ac62e9d735e11f74a115d79a2d145bec3d8bc64ecadab696f31e7f0584

  • SHA512

    d0d6d9ccb5abdacb77a078bde2f82eaa9dad1ee9ecf2614bad11c6cce847cab554f000c4f9ec0b82d17a51c83d22d87db3bb68bbd247623c8313ac1a6720e60e

  • SSDEEP

    24576:AFwl9sk7euEWDAN1MuvBYnbMzJNszLHTVbzG4KqjuX:AFksxuebanQgz7BtK

Malware Config

Extracted

Family

djvu

C2

http://acacaca.org/test1/get.php

Attributes
  • extension

    .mmpu

  • offline_id

    yd6oYv6aBN90yFzTWdZ34sXSXtXiauzOLXZyWht1

  • payload_url

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

    http://acacaca.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-xuPJqoyzQE 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: 0554Jhyjd

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 9 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d78b15ac62e9d735e11f74a115d79a2d145bec3d8bc64ecadab696f31e7f0584.exe
    "C:\Users\Admin\AppData\Local\Temp\d78b15ac62e9d735e11f74a115d79a2d145bec3d8bc64ecadab696f31e7f0584.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2684
    • C:\Users\Admin\AppData\Local\Temp\d78b15ac62e9d735e11f74a115d79a2d145bec3d8bc64ecadab696f31e7f0584.exe
      "C:\Users\Admin\AppData\Local\Temp\d78b15ac62e9d735e11f74a115d79a2d145bec3d8bc64ecadab696f31e7f0584.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5000
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\632db701-346e-4620-ac10-e54e99fb1a00" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1360
      • C:\Users\Admin\AppData\Local\Temp\d78b15ac62e9d735e11f74a115d79a2d145bec3d8bc64ecadab696f31e7f0584.exe
        "C:\Users\Admin\AppData\Local\Temp\d78b15ac62e9d735e11f74a115d79a2d145bec3d8bc64ecadab696f31e7f0584.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4504
        • C:\Users\Admin\AppData\Local\Temp\d78b15ac62e9d735e11f74a115d79a2d145bec3d8bc64ecadab696f31e7f0584.exe
          "C:\Users\Admin\AppData\Local\Temp\d78b15ac62e9d735e11f74a115d79a2d145bec3d8bc64ecadab696f31e7f0584.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1840
          • C:\Users\Admin\AppData\Local\a7ca335a-5a4d-4fd1-a342-df85d19bdfea\build2.exe
            "C:\Users\Admin\AppData\Local\a7ca335a-5a4d-4fd1-a342-df85d19bdfea\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4808
            • C:\Users\Admin\AppData\Local\a7ca335a-5a4d-4fd1-a342-df85d19bdfea\build2.exe
              "C:\Users\Admin\AppData\Local\a7ca335a-5a4d-4fd1-a342-df85d19bdfea\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:516
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 516 -s 1648
                7⤵
                • Program crash
                PID:3948

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    2KB

    MD5

    215064dd8b4566627489319b46e9ca43

    SHA1

    7fa698eef5f02a961b5862df135d7ebfd8a12292

    SHA256

    390f76fdb79029603900524df2f0fbfd05bf18a3bbc74b9b05b2a6dc5938393c

    SHA512

    2a5b12b41d728ce30f1712d23226bbefe73111b786156b97126d6497ef234e78feaf6db08c7412eaa336c869b93ab239cd46b33cc31ff2c8497214cba5927753

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    Filesize

    1KB

    MD5

    a6a0160f7dee79a316edde54d910ebaa

    SHA1

    9b374842b8954e8b27a06f22f1c0de15ea768c31

    SHA256

    f3646358e7a0d83e1140296fb384dc20e38a165f8f086cf240ace49e27e5b7c0

    SHA512

    1510a5ac8bb5d3f7a3be3397ef5266861df92bb72d013d8f9432dae8f4310d7d494e67f6b49b712519fb96ef085eb1e233eb8bd4e42bfee10faf0f6da64e4b98

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    488B

    MD5

    d218726ceb286be659661f17a14720f5

    SHA1

    2f614c8fe7c1f3e2a373d3c3d4b57932c40e0887

    SHA256

    ec992ba375dcef3c53ffd3bec1ef2a9028136378f3192532ec1f2204027b1a41

    SHA512

    c9e9daa1ff4b4959ea86200b834842f01c3f34b362dea0bcb9f40956ee7baffea055ddb1d650fc85ef15ae972c129ca4d71c96fde8d4ef73a820d376fc9dc25f

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    Filesize

    482B

    MD5

    ab06d074eaa32fa6a7c190d6c7cee63c

    SHA1

    ab884b7e7480475192067cdfcb9d693fc0dba88d

    SHA256

    6afba2879ae0217b6c4680701e2080b01de6361bd56f15a911a1eefe22c978a4

    SHA512

    da31331c98accb3f90868cdf3ccb0a020abeb3bc1e8388f92b206865413ba784f2e9f30350b26e017f7169ced9a433c2e524d2518d85b48c7c28881767c32d4c

  • C:\Users\Admin\AppData\Local\632db701-346e-4620-ac10-e54e99fb1a00\d78b15ac62e9d735e11f74a115d79a2d145bec3d8bc64ecadab696f31e7f0584.exe

    Filesize

    832KB

    MD5

    20a25d70f0c30355f4a6506bdff1dea5

    SHA1

    325aa6a8c7b508493fb2490232e8fff07dc56e7a

    SHA256

    d78b15ac62e9d735e11f74a115d79a2d145bec3d8bc64ecadab696f31e7f0584

    SHA512

    d0d6d9ccb5abdacb77a078bde2f82eaa9dad1ee9ecf2614bad11c6cce847cab554f000c4f9ec0b82d17a51c83d22d87db3bb68bbd247623c8313ac1a6720e60e

  • C:\Users\Admin\AppData\Local\a7ca335a-5a4d-4fd1-a342-df85d19bdfea\build2.exe

    Filesize

    383KB

    MD5

    8d7db6982df46c3b0f0cc879d892c08a

    SHA1

    64e3d7ab4793aeb05d18a82159c579e05c45fd71

    SHA256

    116e15e94d70dde65f91f155580bd9b34ff1956b9ebe1a53b6bce912b281c1f6

    SHA512

    0eeb242e6e1356a2a9e3183f12439ef36fac40e27ac8c0df5f591c7b3c1324145627c92c3fee15aedee2c1e8cc3b966152af73a33196166c2c1bfbbd979bdb5b

  • C:\Users\Admin\AppData\Local\a7ca335a-5a4d-4fd1-a342-df85d19bdfea\build2.exe

    Filesize

    383KB

    MD5

    8d7db6982df46c3b0f0cc879d892c08a

    SHA1

    64e3d7ab4793aeb05d18a82159c579e05c45fd71

    SHA256

    116e15e94d70dde65f91f155580bd9b34ff1956b9ebe1a53b6bce912b281c1f6

    SHA512

    0eeb242e6e1356a2a9e3183f12439ef36fac40e27ac8c0df5f591c7b3c1324145627c92c3fee15aedee2c1e8cc3b966152af73a33196166c2c1bfbbd979bdb5b

  • C:\Users\Admin\AppData\Local\a7ca335a-5a4d-4fd1-a342-df85d19bdfea\build2.exe

    Filesize

    383KB

    MD5

    8d7db6982df46c3b0f0cc879d892c08a

    SHA1

    64e3d7ab4793aeb05d18a82159c579e05c45fd71

    SHA256

    116e15e94d70dde65f91f155580bd9b34ff1956b9ebe1a53b6bce912b281c1f6

    SHA512

    0eeb242e6e1356a2a9e3183f12439ef36fac40e27ac8c0df5f591c7b3c1324145627c92c3fee15aedee2c1e8cc3b966152af73a33196166c2c1bfbbd979bdb5b

  • \ProgramData\mozglue.dll

    Filesize

    133KB

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • \ProgramData\nss3.dll

    Filesize

    1.2MB

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • \ProgramData\sqlite3.dll

    Filesize

    630KB

    MD5

    e477a96c8f2b18d6b5c27bde49c990bf

    SHA1

    e980c9bf41330d1e5bd04556db4646a0210f7409

    SHA256

    16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

    SHA512

    335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

  • memory/516-405-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/516-482-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1840-372-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1840-345-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2684-140-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-128-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-133-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-134-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-135-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-136-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-138-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-139-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-131-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-141-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-142-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-143-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-149-0x0000000002720000-0x000000000283B000-memory.dmp

    Filesize

    1.1MB

  • memory/2684-148-0x0000000002680000-0x000000000271B000-memory.dmp

    Filesize

    620KB

  • memory/2684-115-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-130-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-129-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-132-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-127-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-126-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-116-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-117-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-125-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-124-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-123-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-122-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-121-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-120-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-118-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/2684-119-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/4808-392-0x0000000000A00000-0x0000000000A49000-memory.dmp

    Filesize

    292KB

  • memory/4808-390-0x0000000000A66000-0x0000000000A92000-memory.dmp

    Filesize

    176KB

  • memory/5000-157-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-166-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-167-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-169-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-168-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-170-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-172-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-171-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-173-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-174-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-175-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-176-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-177-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-178-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-179-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-180-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-181-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-182-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-214-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5000-247-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5000-165-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-164-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-158-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-162-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-163-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-160-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-161-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-159-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5000-156-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-155-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-154-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-152-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-151-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-150-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-147-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-146-0x0000000077C70000-0x0000000077DFE000-memory.dmp

    Filesize

    1.6MB

  • memory/5000-144-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB