Analysis

  • max time kernel
    300s
  • max time network
    195s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    02-08-2023 03:49

General

  • Target

    a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe

  • Size

    796KB

  • MD5

    e7803301ec5382c63fc1ea002133e0c7

  • SHA1

    62a4cacee5c0b02f5fe428be5dcf6d69c49177c6

  • SHA256

    a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b

  • SHA512

    44b67e34c79fa060da7abd42baae19fe6199c42f3f3bdf191ba8e89fd746f347f5c7af429025381370f19eaf5272a09ba2bf6ac8089cd6452356996425b5d1d5

  • SSDEEP

    24576:Jl0vw4qO+cvFug93Su2t/txD/93zAzyau:H0vNqevFuC3f2pF3zAzyau

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .poaz

  • offline_id

    Cr1qw6x3Gr36kVHAZvrjTBFecy9ksVLEfrUGCjt1

  • 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-MDnNtxiPM0 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: 0753JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5

Botnet

183caee054f0a0bfc81780194d9bc7cb

C2

https://t.me/versozaline

https://steamcommunity.com/profiles/76561199532186526

Attributes
  • profile_id_v2

    183caee054f0a0bfc81780194d9bc7cb

  • user_agent

    Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/111.0

Signatures

  • Detected Djvu ransomware 15 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 6 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
  • Looks up external IP address via web service 2 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).

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe
    "C:\Users\Admin\AppData\Local\Temp\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2228
    • C:\Users\Admin\AppData\Local\Temp\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe
      "C:\Users\Admin\AppData\Local\Temp\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1280
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\acae0d7c-f750-460c-88ca-92211afcf6d3" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2036
      • C:\Users\Admin\AppData\Local\Temp\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe
        "C:\Users\Admin\AppData\Local\Temp\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2772
        • C:\Users\Admin\AppData\Local\Temp\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe
          "C:\Users\Admin\AppData\Local\Temp\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Loads dropped DLL
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2364
          • C:\Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build2.exe
            "C:\Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1020
            • C:\Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build2.exe
              "C:\Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Modifies system certificate store
              • Suspicious behavior: EnumeratesProcesses
              PID:2940
          • C:\Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build3.exe
            "C:\Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1960
            • 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:2040
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {0DF97F7C-59A2-40B1-8FED-8F61C1C1D1B7} S-1-5-21-3408354897-1169622894-3874090110-1000:WGWIREOE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2668
    • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2976
      • 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"
        3⤵
        • Creates scheduled task(s)
        PID:2488

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    b2719bbb2a49b818eea51a51a3f72053

    SHA1

    63f8ae944319def0b89152b5a193239ea3ed745b

    SHA256

    496e726141da55bf80e9764984a5f943bdd1d90c21f7bc168153718f02824d2e

    SHA512

    7f9d17d39a4a173d994bd80d33f11ae5b9ac07e97f104bc239bf68e0b1c9dd90e25353da36958836626f89f5fedaa0943021305a1462250082b707b198257d92

  • C:\Users\Admin\AppData\Local\Temp\Cab1F26.tmp

    Filesize

    62KB

    MD5

    3ac860860707baaf32469fa7cc7c0192

    SHA1

    c33c2acdaba0e6fa41fd2f00f186804722477639

    SHA256

    d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

    SHA512

    d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

  • C:\Users\Admin\AppData\Local\Temp\Tar2081.tmp

    Filesize

    164KB

    MD5

    4ff65ad929cd9a367680e0e5b1c08166

    SHA1

    c0af0d4396bd1f15c45f39d3b849ba444233b3a2

    SHA256

    c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

    SHA512

    f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

  • C:\Users\Admin\AppData\Local\acae0d7c-f750-460c-88ca-92211afcf6d3\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe

    Filesize

    796KB

    MD5

    e7803301ec5382c63fc1ea002133e0c7

    SHA1

    62a4cacee5c0b02f5fe428be5dcf6d69c49177c6

    SHA256

    a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b

    SHA512

    44b67e34c79fa060da7abd42baae19fe6199c42f3f3bdf191ba8e89fd746f347f5c7af429025381370f19eaf5272a09ba2bf6ac8089cd6452356996425b5d1d5

  • C:\Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build2.exe

    Filesize

    449KB

    MD5

    304dcbfad357a684b36d2d639cdbc3eb

    SHA1

    428c58d8c86c49e28bc9958608817bf6a97dd780

    SHA256

    bd5aff6936d77e3deae4e45195b44ec5d4e7ba4f2a9dfe68ee7d6f7be2cfd97a

    SHA512

    8dd618a8a22c3e7f0f19287c6ca8135959f34f30a5d2e19f10f71c45a6b7c8c7dc0900b3e23c3ae479455cd1ce94a744c0841c26bde28f28ef8552130d465d43

  • C:\Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build2.exe

    Filesize

    449KB

    MD5

    304dcbfad357a684b36d2d639cdbc3eb

    SHA1

    428c58d8c86c49e28bc9958608817bf6a97dd780

    SHA256

    bd5aff6936d77e3deae4e45195b44ec5d4e7ba4f2a9dfe68ee7d6f7be2cfd97a

    SHA512

    8dd618a8a22c3e7f0f19287c6ca8135959f34f30a5d2e19f10f71c45a6b7c8c7dc0900b3e23c3ae479455cd1ce94a744c0841c26bde28f28ef8552130d465d43

  • C:\Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build2.exe

    Filesize

    449KB

    MD5

    304dcbfad357a684b36d2d639cdbc3eb

    SHA1

    428c58d8c86c49e28bc9958608817bf6a97dd780

    SHA256

    bd5aff6936d77e3deae4e45195b44ec5d4e7ba4f2a9dfe68ee7d6f7be2cfd97a

    SHA512

    8dd618a8a22c3e7f0f19287c6ca8135959f34f30a5d2e19f10f71c45a6b7c8c7dc0900b3e23c3ae479455cd1ce94a744c0841c26bde28f28ef8552130d465d43

  • C:\Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build2.exe

    Filesize

    449KB

    MD5

    304dcbfad357a684b36d2d639cdbc3eb

    SHA1

    428c58d8c86c49e28bc9958608817bf6a97dd780

    SHA256

    bd5aff6936d77e3deae4e45195b44ec5d4e7ba4f2a9dfe68ee7d6f7be2cfd97a

    SHA512

    8dd618a8a22c3e7f0f19287c6ca8135959f34f30a5d2e19f10f71c45a6b7c8c7dc0900b3e23c3ae479455cd1ce94a744c0841c26bde28f28ef8552130d465d43

  • C:\Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\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

  • \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

  • \Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build2.exe

    Filesize

    449KB

    MD5

    304dcbfad357a684b36d2d639cdbc3eb

    SHA1

    428c58d8c86c49e28bc9958608817bf6a97dd780

    SHA256

    bd5aff6936d77e3deae4e45195b44ec5d4e7ba4f2a9dfe68ee7d6f7be2cfd97a

    SHA512

    8dd618a8a22c3e7f0f19287c6ca8135959f34f30a5d2e19f10f71c45a6b7c8c7dc0900b3e23c3ae479455cd1ce94a744c0841c26bde28f28ef8552130d465d43

  • \Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build2.exe

    Filesize

    449KB

    MD5

    304dcbfad357a684b36d2d639cdbc3eb

    SHA1

    428c58d8c86c49e28bc9958608817bf6a97dd780

    SHA256

    bd5aff6936d77e3deae4e45195b44ec5d4e7ba4f2a9dfe68ee7d6f7be2cfd97a

    SHA512

    8dd618a8a22c3e7f0f19287c6ca8135959f34f30a5d2e19f10f71c45a6b7c8c7dc0900b3e23c3ae479455cd1ce94a744c0841c26bde28f28ef8552130d465d43

  • \Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • \Users\Admin\AppData\Local\c4f432ad-c537-4d16-8df4-3558b3ea6a8a\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • memory/1020-132-0x00000000023F0000-0x00000000024F0000-memory.dmp

    Filesize

    1024KB

  • memory/1020-134-0x0000000000300000-0x0000000000377000-memory.dmp

    Filesize

    476KB

  • memory/1280-56-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1280-61-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1280-62-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1280-67-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1280-58-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2228-55-0x0000000003E50000-0x0000000003F6B000-memory.dmp

    Filesize

    1.1MB

  • memory/2228-54-0x0000000003D70000-0x0000000003E02000-memory.dmp

    Filesize

    584KB

  • memory/2228-60-0x0000000003D70000-0x0000000003E02000-memory.dmp

    Filesize

    584KB

  • memory/2364-113-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-75-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-115-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-117-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-109-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-158-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-108-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-74-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-116-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2940-203-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2940-139-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/2940-135-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/2940-240-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/2940-241-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/2940-131-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2940-138-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB