Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/10/2023, 16:37

General

  • Target

    5b1bcfcc8fe82ff5a39b7f614259e7130c8a66668d40708d5b430b5b9bea2f84.exe

  • Size

    786KB

  • MD5

    bd52ed725a6be477da056302a0f12634

  • SHA1

    45ec837f7ace597c7a81a95d73c51bc14357fd6e

  • SHA256

    5b1bcfcc8fe82ff5a39b7f614259e7130c8a66668d40708d5b430b5b9bea2f84

  • SHA512

    bde022342ab715c34f487cfaf6394108ed51f8813e91f7af00ab1bd8c8534d43c7aa6837b3f3c8b11a012b5ef3e841203437d946ab190e6b0564147f068fe0a2

  • SSDEEP

    12288:TppsxRIzYnS7vYfzqKyYwti0yQPI0J4IGzxqim8cJfn:/sxRIzZgfGKqtEQGY0U

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .ttwq

  • offline_id

    9qw1wmu1ty4GEiHZdxilHPjCyX6ENKTotjt6MIt1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.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-4vhLUot4Kz 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: 0798JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.9

Botnet

b4fc4cd2d76417bf461814b9d989fcdb

C2

https://steamcommunity.com/profiles/76561199557479327

https://t.me/grizmons

Attributes
  • profile_id_v2

    b4fc4cd2d76417bf461814b9d989fcdb

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36 OPR/104.0.0.0

Signatures

  • Detected Djvu ransomware 16 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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
  • 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).

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b1bcfcc8fe82ff5a39b7f614259e7130c8a66668d40708d5b430b5b9bea2f84.exe
    "C:\Users\Admin\AppData\Local\Temp\5b1bcfcc8fe82ff5a39b7f614259e7130c8a66668d40708d5b430b5b9bea2f84.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Users\Admin\AppData\Local\Temp\5b1bcfcc8fe82ff5a39b7f614259e7130c8a66668d40708d5b430b5b9bea2f84.exe
      "C:\Users\Admin\AppData\Local\Temp\5b1bcfcc8fe82ff5a39b7f614259e7130c8a66668d40708d5b430b5b9bea2f84.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4884
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\96157a71-ec74-4600-bba0-7bb4a7960271" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2004
      • C:\Users\Admin\AppData\Local\Temp\5b1bcfcc8fe82ff5a39b7f614259e7130c8a66668d40708d5b430b5b9bea2f84.exe
        "C:\Users\Admin\AppData\Local\Temp\5b1bcfcc8fe82ff5a39b7f614259e7130c8a66668d40708d5b430b5b9bea2f84.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2536
        • C:\Users\Admin\AppData\Local\Temp\5b1bcfcc8fe82ff5a39b7f614259e7130c8a66668d40708d5b430b5b9bea2f84.exe
          "C:\Users\Admin\AppData\Local\Temp\5b1bcfcc8fe82ff5a39b7f614259e7130c8a66668d40708d5b430b5b9bea2f84.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4932
          • C:\Users\Admin\AppData\Local\05c48b15-9fd9-4cd0-ad64-68c4cbcbd50e\build2.exe
            "C:\Users\Admin\AppData\Local\05c48b15-9fd9-4cd0-ad64-68c4cbcbd50e\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4604
            • C:\Users\Admin\AppData\Local\05c48b15-9fd9-4cd0-ad64-68c4cbcbd50e\build2.exe
              "C:\Users\Admin\AppData\Local\05c48b15-9fd9-4cd0-ad64-68c4cbcbd50e\build2.exe"
              6⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:3324
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\05c48b15-9fd9-4cd0-ad64-68c4cbcbd50e\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:1744
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:5056

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

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

    Filesize

    2KB

    MD5

    651484023a0a0eff81663c1b91002c8c

    SHA1

    9a38c674bb602eb6ed855d61cdddc8d8e5f7baf9

    SHA256

    058f0a03b30cf6acfe9f33f4db7ac91153a094a8804e6886bf476fdc317e7f8d

    SHA512

    d74974ecdcf9a3cb8c55563bc27c273b401b0b6d88a3a5cc963fa1fd927b11e97ccf6641ea060c0890a62c216751f663d0c1c6f5e9d397e1461b8592ce0279ca

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

    Filesize

    1KB

    MD5

    2a61a3d0f5beb7727441b0e010c30d7d

    SHA1

    2dc8b67f13196d3a658d79c9c575bf0a0b75da15

    SHA256

    8f97e861acd3950fde5361476dd989039edff251a00b7de4df84cbacfa629a0d

    SHA512

    d29a461cd7c4746015684c9213a72748d5440191b4b9f07209723e0b8e2b59f11cafe4b87acd123d2987ed1990d3204402f69b7f78f8607782c441efb307a12a

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

    Filesize

    488B

    MD5

    4812dd8853d834abb7b431f66dc53ef4

    SHA1

    f1d0c826731356310e5989460c47457a2996a76e

    SHA256

    cfe3aa06946786328e457d39371efc9b64f08c89b40fda6417244c112dbbdea6

    SHA512

    14c27345ebc68b9521de15f2ec71cb4dd7ca4b6705f67b537a443bc955d05e6fb3110e62477c68e9194aa9d6349cbc37cd27f72755567a58e1735c511306897f

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

    Filesize

    482B

    MD5

    3a207f68bdc2e13ba2a8d901e736f672

    SHA1

    34f484fc2ef4653bf2c11fa2c75686107cb12ece

    SHA256

    ce390a4035615c96908b7db51dd67ae34849be4bf5a3d6c1f1bc93cfe08ab9dd

    SHA512

    12410798a46d1b73909450b5eb24f0a5adce08ce38eb92518533f44f758a4724a1961fe55b14b6b8747a7df056ef25cdfa696a1ea34858e2582731ee7cc3a01c

  • C:\Users\Admin\AppData\Local\05c48b15-9fd9-4cd0-ad64-68c4cbcbd50e\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\05c48b15-9fd9-4cd0-ad64-68c4cbcbd50e\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\05c48b15-9fd9-4cd0-ad64-68c4cbcbd50e\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\05c48b15-9fd9-4cd0-ad64-68c4cbcbd50e\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\05c48b15-9fd9-4cd0-ad64-68c4cbcbd50e\build3.exe

    Filesize

    1KB

    MD5

    04346db9f24a19c03a2578a79ca5252f

    SHA1

    26b510857e84ffaa0e5b89c3724a2a79c6311236

    SHA256

    266c1ffdde59dfb922cd80a835257e277b85cbda7659028243286aea760190d3

    SHA512

    cee5a839780c30ff6c99374d6b6905f1af3a061fdda6eb682e5d1b06a4c0077156d6b34c88d55567aa0ca2b57514d8cba433e90168bb1cb27c5af3fa150c46f2

  • C:\Users\Admin\AppData\Local\96157a71-ec74-4600-bba0-7bb4a7960271\5b1bcfcc8fe82ff5a39b7f614259e7130c8a66668d40708d5b430b5b9bea2f84.exe

    Filesize

    786KB

    MD5

    bd52ed725a6be477da056302a0f12634

    SHA1

    45ec837f7ace597c7a81a95d73c51bc14357fd6e

    SHA256

    5b1bcfcc8fe82ff5a39b7f614259e7130c8a66668d40708d5b430b5b9bea2f84

    SHA512

    bde022342ab715c34f487cfaf6394108ed51f8813e91f7af00ab1bd8c8534d43c7aa6837b3f3c8b11a012b5ef3e841203437d946ab190e6b0564147f068fe0a2

  • memory/1936-2-0x00000000041D0000-0x00000000042EB000-memory.dmp

    Filesize

    1.1MB

  • memory/1936-1-0x00000000040D0000-0x0000000004165000-memory.dmp

    Filesize

    596KB

  • memory/2536-18-0x0000000003F60000-0x0000000003FF6000-memory.dmp

    Filesize

    600KB

  • memory/3324-66-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3324-118-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3324-64-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3324-63-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3324-76-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3324-59-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3324-120-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3324-117-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4604-62-0x0000000003F40000-0x0000000003F91000-memory.dmp

    Filesize

    324KB

  • memory/4604-60-0x00000000026A0000-0x00000000027A0000-memory.dmp

    Filesize

    1024KB

  • memory/4884-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4884-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4884-15-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4884-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4884-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4932-21-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4932-58-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4932-35-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4932-34-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4932-32-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4932-28-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4932-27-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4932-22-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4932-119-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4932-20-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB