Analysis

  • max time kernel
    147s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230831-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/09/2023, 16:21

General

  • Target

    ab27cd1f7b8146210ab69d0d011463e9a9d7d2ee40930452744a882b1b9b13c5.exe

  • Size

    833KB

  • MD5

    b7d6e0d4e7c4103645cb79133537e737

  • SHA1

    411f5be09a1ecce1ebb26ff639f79d55f190f1eb

  • SHA256

    ab27cd1f7b8146210ab69d0d011463e9a9d7d2ee40930452744a882b1b9b13c5

  • SHA512

    1c0c260642a445c3549ab6f1f072e0a5ef3ad9afa5c543b7c76b87cee940973573ace561d9e9fae82440dc1d0309f0d3d9890be357dff7aca6182ad687f5b08f

  • SSDEEP

    12288:WPXO8AW1c6UmYnp/vLHSzs5RIYfmb9elhuwNqMAiR8xX:WvOU1c7np/vLHCs5RIY09el8wNbp4X

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .hgkd

  • offline_id

    Nk8w6hJsuGrE3s2SYWM3ehMUHvjgVRqqgX84dat1

  • 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-iTbDHY13BX 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: 0778JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.5

Botnet

b8051b8228ebec240e80eed1f06471da

C2

https://t.me/macstoc

https://steamcommunity.com/profiles/76561199548518734

Attributes
  • profile_id_v2

    b8051b8228ebec240e80eed1f06471da

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 4 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.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ab27cd1f7b8146210ab69d0d011463e9a9d7d2ee40930452744a882b1b9b13c5.exe
    "C:\Users\Admin\AppData\Local\Temp\ab27cd1f7b8146210ab69d0d011463e9a9d7d2ee40930452744a882b1b9b13c5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:220
    • C:\Users\Admin\AppData\Local\Temp\ab27cd1f7b8146210ab69d0d011463e9a9d7d2ee40930452744a882b1b9b13c5.exe
      "C:\Users\Admin\AppData\Local\Temp\ab27cd1f7b8146210ab69d0d011463e9a9d7d2ee40930452744a882b1b9b13c5.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1572
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\d147a40e-6891-4621-a3c2-be0f5333e8fe" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4524
      • C:\Users\Admin\AppData\Local\Temp\ab27cd1f7b8146210ab69d0d011463e9a9d7d2ee40930452744a882b1b9b13c5.exe
        "C:\Users\Admin\AppData\Local\Temp\ab27cd1f7b8146210ab69d0d011463e9a9d7d2ee40930452744a882b1b9b13c5.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1600
        • C:\Users\Admin\AppData\Local\Temp\ab27cd1f7b8146210ab69d0d011463e9a9d7d2ee40930452744a882b1b9b13c5.exe
          "C:\Users\Admin\AppData\Local\Temp\ab27cd1f7b8146210ab69d0d011463e9a9d7d2ee40930452744a882b1b9b13c5.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:180
          • C:\Users\Admin\AppData\Local\edfcac2b-9958-4d93-ac28-3bd4994add0f\build2.exe
            "C:\Users\Admin\AppData\Local\edfcac2b-9958-4d93-ac28-3bd4994add0f\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2960
            • C:\Users\Admin\AppData\Local\edfcac2b-9958-4d93-ac28-3bd4994add0f\build2.exe
              "C:\Users\Admin\AppData\Local\edfcac2b-9958-4d93-ac28-3bd4994add0f\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:4756
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\edfcac2b-9958-4d93-ac28-3bd4994add0f\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:2928
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:2456
          • C:\Users\Admin\AppData\Local\edfcac2b-9958-4d93-ac28-3bd4994add0f\build3.exe
            "C:\Users\Admin\AppData\Local\edfcac2b-9958-4d93-ac28-3bd4994add0f\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3752
            • C:\Windows\SysWOW64\schtasks.exe
              /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
              6⤵
              • Creates scheduled task(s)
              PID:1188
  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:680
    • C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
      2⤵
      • Creates scheduled task(s)
      PID:1648

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

    ae5be677e505aec1d2ae6ac82539b2e8

    SHA1

    8b6d31dd6097a32b2f71c134da59f5c6c0cd5d99

    SHA256

    24239d4a210aa645caf5443aa0fabb214776179114e92cbb612ace0a26e3d09e

    SHA512

    fe526b2b092ff099f3f8f57717913ddbaabc7c26b3b6b8b206185aa5aba71e3ebf3f1e5d5f2eded0cc2fd4f7b428178800dad61b59e7aa9ce75c431e6a1801e8

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

    Filesize

    1KB

    MD5

    b48c37414206b33557ce1230461e53ed

    SHA1

    af289afa0c9ba9044e0db7f77dea94c81f52d3b1

    SHA256

    5497d30f00ca1b434c2736cfc2d86fe8e552f533a52d04c97b3f115c19345504

    SHA512

    74f906a24d12d45bf8f7c45ee1aaeead764d99f22d7852de4893a123742ec0ec35d9e43c1aaf965d8185cba434cc789e82a52d36071acc766896447d57b44ce0

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

    Filesize

    488B

    MD5

    7f7a7b77c58e2731ed22c57a2feba97e

    SHA1

    1fb430ab95c32d7019a2093cddffa63fd8045783

    SHA256

    7bca366327c9ddd896aa9c6411147df98e78cc4bfe5effa6a7c2a75bfb1a3e0e

    SHA512

    c8e67fe86c2af244f7aa5269248a36c9a99d0907818806885107a150500a88b740d39cf79ca2fe242506ce2ce771392044a161ebdcaf475dde3343e89f7f3359

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

    Filesize

    482B

    MD5

    3df070a0d3383d4101afcabd75e1c857

    SHA1

    a84aef871d713c4636d1c752ff307313becf5ee5

    SHA256

    8dc6aac3c3172f4737e2171dbc8c17d6f512c97b9300f047fbce80b1765c74d8

    SHA512

    1b940d3140480157981af2338e483ae6eb7df8e7864da43d703ecc2b018bed518d334efcd0ec53c9b9657a950bb6d53d4629099cb52848c3d1636932b802a0fe

  • C:\Users\Admin\AppData\Local\d147a40e-6891-4621-a3c2-be0f5333e8fe\ab27cd1f7b8146210ab69d0d011463e9a9d7d2ee40930452744a882b1b9b13c5.exe

    Filesize

    833KB

    MD5

    b7d6e0d4e7c4103645cb79133537e737

    SHA1

    411f5be09a1ecce1ebb26ff639f79d55f190f1eb

    SHA256

    ab27cd1f7b8146210ab69d0d011463e9a9d7d2ee40930452744a882b1b9b13c5

    SHA512

    1c0c260642a445c3549ab6f1f072e0a5ef3ad9afa5c543b7c76b87cee940973573ace561d9e9fae82440dc1d0309f0d3d9890be357dff7aca6182ad687f5b08f

  • C:\Users\Admin\AppData\Local\edfcac2b-9958-4d93-ac28-3bd4994add0f\build2.exe

    Filesize

    386KB

    MD5

    e43099bbc23b6340d4585fa2335f3b28

    SHA1

    a9c28a77eff114229d3b50f4b6e6e5a0e1fb30c7

    SHA256

    fc5336b039a9cc8e14d515f338c90a5a404249adab200032324c65f055904255

    SHA512

    a31df980c95ab55bad1925eed3a68460f689c63ccc33ea458876aaf3aa16ad8b1272247f806a8ce93c2c8461ad4806a309cf623cbf9f6f9829d9b9db1d3ee3e4

  • C:\Users\Admin\AppData\Local\edfcac2b-9958-4d93-ac28-3bd4994add0f\build2.exe

    Filesize

    386KB

    MD5

    e43099bbc23b6340d4585fa2335f3b28

    SHA1

    a9c28a77eff114229d3b50f4b6e6e5a0e1fb30c7

    SHA256

    fc5336b039a9cc8e14d515f338c90a5a404249adab200032324c65f055904255

    SHA512

    a31df980c95ab55bad1925eed3a68460f689c63ccc33ea458876aaf3aa16ad8b1272247f806a8ce93c2c8461ad4806a309cf623cbf9f6f9829d9b9db1d3ee3e4

  • C:\Users\Admin\AppData\Local\edfcac2b-9958-4d93-ac28-3bd4994add0f\build2.exe

    Filesize

    386KB

    MD5

    e43099bbc23b6340d4585fa2335f3b28

    SHA1

    a9c28a77eff114229d3b50f4b6e6e5a0e1fb30c7

    SHA256

    fc5336b039a9cc8e14d515f338c90a5a404249adab200032324c65f055904255

    SHA512

    a31df980c95ab55bad1925eed3a68460f689c63ccc33ea458876aaf3aa16ad8b1272247f806a8ce93c2c8461ad4806a309cf623cbf9f6f9829d9b9db1d3ee3e4

  • C:\Users\Admin\AppData\Local\edfcac2b-9958-4d93-ac28-3bd4994add0f\build2.exe

    Filesize

    386KB

    MD5

    e43099bbc23b6340d4585fa2335f3b28

    SHA1

    a9c28a77eff114229d3b50f4b6e6e5a0e1fb30c7

    SHA256

    fc5336b039a9cc8e14d515f338c90a5a404249adab200032324c65f055904255

    SHA512

    a31df980c95ab55bad1925eed3a68460f689c63ccc33ea458876aaf3aa16ad8b1272247f806a8ce93c2c8461ad4806a309cf623cbf9f6f9829d9b9db1d3ee3e4

  • C:\Users\Admin\AppData\Local\edfcac2b-9958-4d93-ac28-3bd4994add0f\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\edfcac2b-9958-4d93-ac28-3bd4994add0f\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\edfcac2b-9958-4d93-ac28-3bd4994add0f\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • memory/180-22-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/180-28-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/180-32-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/180-35-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/180-34-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/180-27-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/180-114-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/180-21-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/180-20-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/180-55-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/220-1-0x00000000040C0000-0x000000000415E000-memory.dmp

    Filesize

    632KB

  • memory/220-2-0x00000000041E0000-0x00000000042FB000-memory.dmp

    Filesize

    1.1MB

  • memory/1572-15-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1572-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1572-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1572-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1572-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1600-18-0x0000000004100000-0x0000000004197000-memory.dmp

    Filesize

    604KB

  • memory/2960-58-0x00000000025A0000-0x00000000025D1000-memory.dmp

    Filesize

    196KB

  • memory/2960-62-0x00000000040C0000-0x000000000411B000-memory.dmp

    Filesize

    364KB

  • memory/4756-75-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4756-64-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/4756-63-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/4756-61-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/4756-59-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/4756-119-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/4756-120-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/4756-121-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB