Analysis

  • max time kernel
    147s
  • max time network
    127s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    21-02-2023 17:26

General

  • Target

    da1d55245fc069814f37fb0268d2b12777f0e028bae80d0ebf0e405562ff35d9.exe

  • Size

    665KB

  • MD5

    63e055dd0cf821240262820b92627311

  • SHA1

    474b55a29207216afbd5aa16a88e55238e326196

  • SHA256

    da1d55245fc069814f37fb0268d2b12777f0e028bae80d0ebf0e405562ff35d9

  • SHA512

    a049b3f44610622fc43bb3e96d459f3716407cc263e7fb0f8e159179ffd3552ffd613a27a13fed681a6e460f50dbebc7fd892e6e3d4fa8aa50285eb38b997483

  • SSDEEP

    12288:t513mUNKoZa9538xoiaauQa1hAEl8E6jXNcW2KfSIxZYBkDP71kPw:t5x13AD38TvuQkhAEl87XNn2KfSIxZYp

Malware Config

Extracted

Family

djvu

C2

http://jiqaz.com/test2/get.php

Attributes
  • extension

    .ioqa

  • offline_id

    O5Ml6uMfuo0gYusk48e0q49EQlFERyL5eSVQmVt1

  • payload_url

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

    http://jiqaz.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-vdhH9Qcpjj 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: support@freshmail.top Reserve e-mail address to contact us: datarestorehelp@airmail.cc Your personal ID: 0650JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

2.6

Botnet

19

Attributes
  • profile_id

    19

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
  • 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
  • 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.

  • 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 6 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\da1d55245fc069814f37fb0268d2b12777f0e028bae80d0ebf0e405562ff35d9.exe
    "C:\Users\Admin\AppData\Local\Temp\da1d55245fc069814f37fb0268d2b12777f0e028bae80d0ebf0e405562ff35d9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4144
    • C:\Users\Admin\AppData\Local\Temp\da1d55245fc069814f37fb0268d2b12777f0e028bae80d0ebf0e405562ff35d9.exe
      "C:\Users\Admin\AppData\Local\Temp\da1d55245fc069814f37fb0268d2b12777f0e028bae80d0ebf0e405562ff35d9.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4116
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\c02fc38e-e28b-4eca-a5ac-76a101eebb73" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:5112
      • C:\Users\Admin\AppData\Local\Temp\da1d55245fc069814f37fb0268d2b12777f0e028bae80d0ebf0e405562ff35d9.exe
        "C:\Users\Admin\AppData\Local\Temp\da1d55245fc069814f37fb0268d2b12777f0e028bae80d0ebf0e405562ff35d9.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4236
        • C:\Users\Admin\AppData\Local\Temp\da1d55245fc069814f37fb0268d2b12777f0e028bae80d0ebf0e405562ff35d9.exe
          "C:\Users\Admin\AppData\Local\Temp\da1d55245fc069814f37fb0268d2b12777f0e028bae80d0ebf0e405562ff35d9.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1544
          • C:\Users\Admin\AppData\Local\34ad6af1-8fda-4e3e-b204-15b08290dddc\build2.exe
            "C:\Users\Admin\AppData\Local\34ad6af1-8fda-4e3e-b204-15b08290dddc\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3224
            • C:\Users\Admin\AppData\Local\34ad6af1-8fda-4e3e-b204-15b08290dddc\build2.exe
              "C:\Users\Admin\AppData\Local\34ad6af1-8fda-4e3e-b204-15b08290dddc\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:2964
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\34ad6af1-8fda-4e3e-b204-15b08290dddc\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:3164
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4936
          • C:\Users\Admin\AppData\Local\34ad6af1-8fda-4e3e-b204-15b08290dddc\build3.exe
            "C:\Users\Admin\AppData\Local\34ad6af1-8fda-4e3e-b204-15b08290dddc\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4872
            • 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:4288
  • 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:648
    • 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:5064

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

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

    2KB

    MD5

    9537870d15b0280e05e86e521aff4d50

    SHA1

    bbeb1b7a94d925fda0cb639e884bebaefd600dcc

    SHA256

    0d4d5955a7f5b3967f218a4be0ceddceafac2409f7fecc2f4e1af583f4a40dba

    SHA512

    1ea975472134e6b5c2a727a026d555f6f912c79d8a78119413a412eacfc7e35071c22bbcd4007fa501d5e553f9b1ed9f7f88c523a98af5a59905e9bb3d5c4e03

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

    1KB

    MD5

    c4a25dfef00224e399cdff2b249b3ed9

    SHA1

    6d2f5e34668868607fa75fd506da5fdc33d75b32

    SHA256

    59e08914fdecf341021137601b765d45dbe07710a24ab1fce168ab2b113136e8

    SHA512

    d6c8698a0799456c1aec51e5625cd3e6400f64b93e82c2c92cb3fdfbcba91361854aa759272c3ac3353cfbbb5bb0155d8aa895079d69afea28b775228e123c26

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

    488B

    MD5

    32b59b71c34264be0b3968acab7e4940

    SHA1

    691932a086a396d040f28c90f848d4da73a925fa

    SHA256

    a05172a69cb102d812aca61b5128f1f9cc761e09d493d270871ca111463ecac1

    SHA512

    d9ed102528620264d21f849baea255fa338f26dc37eb0ebd9cbbca757f9d4ee6b22c2b1b5612927d1f0476b64fe7da4994b7d5f4fea44a81f02b824fb0f24add

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

    482B

    MD5

    8d77efef76c43100425baea91d46f583

    SHA1

    0c5c1d054473c289c7eda11d7926e0b3eca17907

    SHA256

    b9dacc03c1a465bd817d6d64e416365d1ad8efb25d446e74d9f27100ae49b6ab

    SHA512

    09c2ea140c1ee0f9a93574d6e2130f53038ed3857156f3202d62b621e5a2cbef14c95469d7733a08c66b29d1c43401e721497ca47c6c98c53bd17a27c4281f03

  • C:\Users\Admin\AppData\Local\34ad6af1-8fda-4e3e-b204-15b08290dddc\build2.exe
    Filesize

    322KB

    MD5

    a32ee68cab7021ae6aa6e16e8b70a9b3

    SHA1

    22e86ec447a074098e19e3f686c373dc53aaf9f3

    SHA256

    76d3b8781abaea750616e4993cdc85696fb12b5d0afb7ef66853f604d141758f

    SHA512

    a163adf92417463344a491cce7928e3c2a2cee27684f6b5bdd7a17a532fade88fab167e98d425dd8cba49cfcd2e3f1709f986829b9b7a7e4131887882a612ae1

  • C:\Users\Admin\AppData\Local\34ad6af1-8fda-4e3e-b204-15b08290dddc\build2.exe
    Filesize

    322KB

    MD5

    a32ee68cab7021ae6aa6e16e8b70a9b3

    SHA1

    22e86ec447a074098e19e3f686c373dc53aaf9f3

    SHA256

    76d3b8781abaea750616e4993cdc85696fb12b5d0afb7ef66853f604d141758f

    SHA512

    a163adf92417463344a491cce7928e3c2a2cee27684f6b5bdd7a17a532fade88fab167e98d425dd8cba49cfcd2e3f1709f986829b9b7a7e4131887882a612ae1

  • C:\Users\Admin\AppData\Local\34ad6af1-8fda-4e3e-b204-15b08290dddc\build2.exe
    Filesize

    322KB

    MD5

    a32ee68cab7021ae6aa6e16e8b70a9b3

    SHA1

    22e86ec447a074098e19e3f686c373dc53aaf9f3

    SHA256

    76d3b8781abaea750616e4993cdc85696fb12b5d0afb7ef66853f604d141758f

    SHA512

    a163adf92417463344a491cce7928e3c2a2cee27684f6b5bdd7a17a532fade88fab167e98d425dd8cba49cfcd2e3f1709f986829b9b7a7e4131887882a612ae1

  • C:\Users\Admin\AppData\Local\34ad6af1-8fda-4e3e-b204-15b08290dddc\build3.exe
    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\34ad6af1-8fda-4e3e-b204-15b08290dddc\build3.exe
    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\c02fc38e-e28b-4eca-a5ac-76a101eebb73\da1d55245fc069814f37fb0268d2b12777f0e028bae80d0ebf0e405562ff35d9.exe
    Filesize

    665KB

    MD5

    63e055dd0cf821240262820b92627311

    SHA1

    474b55a29207216afbd5aa16a88e55238e326196

    SHA256

    da1d55245fc069814f37fb0268d2b12777f0e028bae80d0ebf0e405562ff35d9

    SHA512

    a049b3f44610622fc43bb3e96d459f3716407cc263e7fb0f8e159179ffd3552ffd613a27a13fed681a6e460f50dbebc7fd892e6e3d4fa8aa50285eb38b997483

  • 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

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

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • \ProgramData\mozglue.dll
    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll
    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/1544-146-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1544-151-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1544-154-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1544-153-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1544-147-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1544-169-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1544-145-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1544-139-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1544-140-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1544-185-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2964-167-0x0000000000400000-0x0000000000470000-memory.dmp
    Filesize

    448KB

  • memory/2964-242-0x0000000000400000-0x0000000000470000-memory.dmp
    Filesize

    448KB

  • memory/2964-245-0x0000000000400000-0x0000000000470000-memory.dmp
    Filesize

    448KB

  • memory/2964-165-0x0000000000400000-0x0000000000470000-memory.dmp
    Filesize

    448KB

  • memory/2964-244-0x0000000000400000-0x0000000000470000-memory.dmp
    Filesize

    448KB

  • memory/2964-168-0x0000000000400000-0x0000000000470000-memory.dmp
    Filesize

    448KB

  • memory/2964-163-0x0000000000400000-0x0000000000470000-memory.dmp
    Filesize

    448KB

  • memory/2964-189-0x0000000061E00000-0x0000000061EF3000-memory.dmp
    Filesize

    972KB

  • memory/3224-166-0x00000000007F0000-0x000000000084C000-memory.dmp
    Filesize

    368KB

  • memory/4116-126-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4116-135-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4116-125-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4116-123-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4116-124-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4144-122-0x00000000024C0000-0x00000000025DB000-memory.dmp
    Filesize

    1.1MB