Analysis

  • max time kernel
    144s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-06-2023 23:04

General

  • Target

    b32e505f6b6703167ca9ba5fc84e838f2d377bb648a3df1ca358a801ad17bc2b.exe

  • Size

    743KB

  • MD5

    837c2d18732caf818b0d3c5a2fe16e9d

  • SHA1

    f7a7fd80b6d1dde003a3558bdc01ea3b81ce49b4

  • SHA256

    b32e505f6b6703167ca9ba5fc84e838f2d377bb648a3df1ca358a801ad17bc2b

  • SHA512

    1b3519347c5a5d900532505f371060ce70411aae2f0d3fb37672104c0816848e392347c3a0177803038ecf15a66d9e1282aa6f80976e0ec817cf71d5345590fa

  • SSDEEP

    12288:0egKXZk/7yjP0SB5LTAkr10nJELpAGXkm0D76r4b93EWRMzwqf+:05IZk6sGQkB0aLKGXkLvzb93Piw

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .neon

  • offline_id

    0vTA6MA1m5nzrdffOCJC7YmAa4Lp6YNN8lOJ4mt1

  • 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-vc50LyB2yb 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: 0725JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.2

Botnet

a81bcf59d85e6e13257840e65b9d1da8

C2

https://steamcommunity.com/profiles/76561199511129510

https://t.me/rechnungsbetrag

Attributes
  • profile_id_v2

    a81bcf59d85e6e13257840e65b9d1da8

  • user_agent

    Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.38 Safari/537.36 Brave/75

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 2 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
  • 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).

  • 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.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b32e505f6b6703167ca9ba5fc84e838f2d377bb648a3df1ca358a801ad17bc2b.exe
    "C:\Users\Admin\AppData\Local\Temp\b32e505f6b6703167ca9ba5fc84e838f2d377bb648a3df1ca358a801ad17bc2b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Users\Admin\AppData\Local\Temp\b32e505f6b6703167ca9ba5fc84e838f2d377bb648a3df1ca358a801ad17bc2b.exe
      "C:\Users\Admin\AppData\Local\Temp\b32e505f6b6703167ca9ba5fc84e838f2d377bb648a3df1ca358a801ad17bc2b.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4776
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\b2872bf5-8f71-440c-92c1-203e551768d6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:632
      • C:\Users\Admin\AppData\Local\Temp\b32e505f6b6703167ca9ba5fc84e838f2d377bb648a3df1ca358a801ad17bc2b.exe
        "C:\Users\Admin\AppData\Local\Temp\b32e505f6b6703167ca9ba5fc84e838f2d377bb648a3df1ca358a801ad17bc2b.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2552
        • C:\Users\Admin\AppData\Local\Temp\b32e505f6b6703167ca9ba5fc84e838f2d377bb648a3df1ca358a801ad17bc2b.exe
          "C:\Users\Admin\AppData\Local\Temp\b32e505f6b6703167ca9ba5fc84e838f2d377bb648a3df1ca358a801ad17bc2b.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2208
          • C:\Users\Admin\AppData\Local\d744ad99-185f-4449-8a8f-2594cf86bf80\build2.exe
            "C:\Users\Admin\AppData\Local\d744ad99-185f-4449-8a8f-2594cf86bf80\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2680
            • C:\Users\Admin\AppData\Local\d744ad99-185f-4449-8a8f-2594cf86bf80\build2.exe
              "C:\Users\Admin\AppData\Local\d744ad99-185f-4449-8a8f-2594cf86bf80\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:3748
          • C:\Users\Admin\AppData\Local\d744ad99-185f-4449-8a8f-2594cf86bf80\build3.exe
            "C:\Users\Admin\AppData\Local\d744ad99-185f-4449-8a8f-2594cf86bf80\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2524
            • 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:4384
  • 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:796
    • 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:728

Network

MITRE ATT&CK Enterprise v6

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

    72cce08db064d193dd1c8db96e30a0e7

    SHA1

    a76ef6bbfb2cadde26e7d713e9a71a8818d68991

    SHA256

    e904584bfbd2b92b1b9063f660abbe337c58e623ca78df5107f036d272d66c38

    SHA512

    e1d719a6a5d446c2b3348930cfcea61f85cff76adc38948dfb144aa7f95eac5453d7787706bca70ce75de931724cff7e6e146f9b662e34eb36d948995fbca1f4

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

    Filesize

    1KB

    MD5

    e5ef4e3f5fd7934cb9c76b42b58ea45c

    SHA1

    c76f9fad9a12335d281771454f657036efc5881a

    SHA256

    3b247db7937565d22f6455fb744771e14de3380d133192e00a8f5fadf6492bdb

    SHA512

    1f18d5a9aead87cf00682a6fccdfc2896d29a92f808491fb0c1a97a86941734d9c6f1dee6786a9151eba488916d84c220c6ae78a93c1246301de73c2d034373f

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

    Filesize

    488B

    MD5

    27b6d4b2340a1e8fd6b8e39f5465513e

    SHA1

    0602c225db151838ab56e056ddf22943646e7e43

    SHA256

    67649b95ae1a1244008c39f07503f3a6cc5df97a10f8bafe4c34d0843cfff536

    SHA512

    f6e2d7b5ebd58b4db5e993c562f83d80f8004a1ac123399d821478303611503f2015d87d4cd90786c11fa5eb6a676962e8e5ef66b7fc8bfe22676ea010d88faf

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

    Filesize

    482B

    MD5

    01f697d2b44affa6393241279d6ec532

    SHA1

    623a73b85cf93699382b2da3d4ade507518fec55

    SHA256

    7544a1a12719cb06e832d7a9b7a80ca4cae809e318e592aaf0363c7692215a88

    SHA512

    1ebe353b7e6595923d9e0bff1db3db4c158cebf4d305480a2e2d2cbd75ba2d5e9d0394503ae02beb8f558c69e557502108b70348026d618bdc582464ffeb6b2a

  • C:\Users\Admin\AppData\Local\b2872bf5-8f71-440c-92c1-203e551768d6\b32e505f6b6703167ca9ba5fc84e838f2d377bb648a3df1ca358a801ad17bc2b.exe

    Filesize

    743KB

    MD5

    837c2d18732caf818b0d3c5a2fe16e9d

    SHA1

    f7a7fd80b6d1dde003a3558bdc01ea3b81ce49b4

    SHA256

    b32e505f6b6703167ca9ba5fc84e838f2d377bb648a3df1ca358a801ad17bc2b

    SHA512

    1b3519347c5a5d900532505f371060ce70411aae2f0d3fb37672104c0816848e392347c3a0177803038ecf15a66d9e1282aa6f80976e0ec817cf71d5345590fa

  • C:\Users\Admin\AppData\Local\d744ad99-185f-4449-8a8f-2594cf86bf80\build2.exe

    Filesize

    352KB

    MD5

    f76b7a03bc4db7e669adc6a0eb80322a

    SHA1

    ad3ef2ea2dcf95e805c7be56a7d63f654328121e

    SHA256

    c2c5560cede5fe447363e0d432707fc287312c20e92715b59700888e77eab92d

    SHA512

    626465ba82f07cdfc0f86496e5f2e0f95aea64fd7b1c90708f99eaae78cc3f04ecf3fb22de85b647837009edb62d1125673073ec083cd82e1dd61f8ddc235e5c

  • C:\Users\Admin\AppData\Local\d744ad99-185f-4449-8a8f-2594cf86bf80\build2.exe

    Filesize

    352KB

    MD5

    f76b7a03bc4db7e669adc6a0eb80322a

    SHA1

    ad3ef2ea2dcf95e805c7be56a7d63f654328121e

    SHA256

    c2c5560cede5fe447363e0d432707fc287312c20e92715b59700888e77eab92d

    SHA512

    626465ba82f07cdfc0f86496e5f2e0f95aea64fd7b1c90708f99eaae78cc3f04ecf3fb22de85b647837009edb62d1125673073ec083cd82e1dd61f8ddc235e5c

  • C:\Users\Admin\AppData\Local\d744ad99-185f-4449-8a8f-2594cf86bf80\build2.exe

    Filesize

    352KB

    MD5

    f76b7a03bc4db7e669adc6a0eb80322a

    SHA1

    ad3ef2ea2dcf95e805c7be56a7d63f654328121e

    SHA256

    c2c5560cede5fe447363e0d432707fc287312c20e92715b59700888e77eab92d

    SHA512

    626465ba82f07cdfc0f86496e5f2e0f95aea64fd7b1c90708f99eaae78cc3f04ecf3fb22de85b647837009edb62d1125673073ec083cd82e1dd61f8ddc235e5c

  • C:\Users\Admin\AppData\Local\d744ad99-185f-4449-8a8f-2594cf86bf80\build2.exe

    Filesize

    352KB

    MD5

    f76b7a03bc4db7e669adc6a0eb80322a

    SHA1

    ad3ef2ea2dcf95e805c7be56a7d63f654328121e

    SHA256

    c2c5560cede5fe447363e0d432707fc287312c20e92715b59700888e77eab92d

    SHA512

    626465ba82f07cdfc0f86496e5f2e0f95aea64fd7b1c90708f99eaae78cc3f04ecf3fb22de85b647837009edb62d1125673073ec083cd82e1dd61f8ddc235e5c

  • C:\Users\Admin\AppData\Local\d744ad99-185f-4449-8a8f-2594cf86bf80\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\d744ad99-185f-4449-8a8f-2594cf86bf80\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\d744ad99-185f-4449-8a8f-2594cf86bf80\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/1304-136-0x0000000004540000-0x000000000465B000-memory.dmp

    Filesize

    1.1MB

  • memory/2208-161-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2208-170-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2208-282-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2208-169-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2208-167-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2208-163-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2208-162-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2208-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2208-154-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2208-205-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2680-184-0x0000000002E40000-0x0000000002E96000-memory.dmp

    Filesize

    344KB

  • memory/3748-280-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/3748-186-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/3748-185-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/3748-182-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/3748-209-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3748-277-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/3748-279-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/3748-190-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/4776-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4776-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4776-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4776-141-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4776-149-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB