Analysis

  • max time kernel
    146s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-06-2023 13:57

General

  • Target

    06421199.exe

  • Size

    824KB

  • MD5

    f44da0dfe7f4581e5c415b0a17d1e973

  • SHA1

    db00da4f1ca30517c43030ce8e5ccc64ea2c9d8f

  • SHA256

    d35d748aebd7c8112ee9d4d7cc38f430bca5b397afec832d51f3e086b828e845

  • SHA512

    d624ac9340759c87d8d9de672f5a8f2ae20c8cc88ac045929586303ecb35ee321d62a59bbbec051eda19065d712c0efc049e949f7130538b3c3afab856362a7c

  • SSDEEP

    24576:kwHsU2QfJr5SOlFujlI99FwPhp6RBvtSGF:kwHhJfJNSOHuLPS7

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 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 6 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\06421199.exe
    "C:\Users\Admin\AppData\Local\Temp\06421199.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4192
    • C:\Users\Admin\AppData\Local\Temp\06421199.exe
      "C:\Users\Admin\AppData\Local\Temp\06421199.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1048
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\f49f0408-b8bc-49c9-8758-85d42b3767f5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3172
      • C:\Users\Admin\AppData\Local\Temp\06421199.exe
        "C:\Users\Admin\AppData\Local\Temp\06421199.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2240
        • C:\Users\Admin\AppData\Local\Temp\06421199.exe
          "C:\Users\Admin\AppData\Local\Temp\06421199.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2896
          • C:\Users\Admin\AppData\Local\18beb77e-f50a-4caa-b9cf-cee6ae3553e7\build2.exe
            "C:\Users\Admin\AppData\Local\18beb77e-f50a-4caa-b9cf-cee6ae3553e7\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3384
            • C:\Users\Admin\AppData\Local\18beb77e-f50a-4caa-b9cf-cee6ae3553e7\build2.exe
              "C:\Users\Admin\AppData\Local\18beb77e-f50a-4caa-b9cf-cee6ae3553e7\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:5088
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\18beb77e-f50a-4caa-b9cf-cee6ae3553e7\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:852
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:1692
          • C:\Users\Admin\AppData\Local\18beb77e-f50a-4caa-b9cf-cee6ae3553e7\build3.exe
            "C:\Users\Admin\AppData\Local\18beb77e-f50a-4caa-b9cf-cee6ae3553e7\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:216
            • 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:3644
  • 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:1116
    • 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:2164

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

2
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

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

    35ea43685e4c722697c1556ff9ecd74f

    SHA1

    6dee725787797e2ada7d18b852d70c077748435d

    SHA256

    21f8bcbffbe824c3658bb39babb8530b7a69e4d46d5e439f9605d72dbfbf4785

    SHA512

    6f784fbc4890c7bd32f3c8fb899dd61d5ea49506ac51e858deb9a6725833b4601811435407f8ab9866141af3a04f39ba3c397383e39b858a7325f1d7218ac085

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

    1KB

    MD5

    962a10dee75f11cdcdd15712a3e05df2

    SHA1

    b3f8017d9bfc6c5453ba7dad6abaad38fb1d5028

    SHA256

    01fe69115267adcb8bb03f9fcbb741e52fa22acf758d6337340d1ae6593baa00

    SHA512

    e315bbe1f3fe3fcc1388c1ec1d1282ad6eac53caecfdb1a188321700d04c8606eb052d9d23e012be75447f7d52f3a957cafd080b08a060cbf59990eaecb0fce4

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

    488B

    MD5

    f90e010517b16d95bf0258a9c8328b6d

    SHA1

    523c78d7e6e34dcc066ea32d7316e19b7e99159d

    SHA256

    bd008f1e2528340c0ef52da41fe224b7d57a5db2b793353ed7dbe7ecafc4107f

    SHA512

    c5baf830c1e5d640920f3ad3a153ec3b25885f8550ae15475993c2daeda42eec36ab2b1aa85ffc62f52d7dd8856e7bd375d024329c383288d2a41b3c7f614436

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

    482B

    MD5

    a33473ebcb2c56af2d085c3676b5f340

    SHA1

    f3ada5f996ffab5169d436c0c9f21988ff2832a1

    SHA256

    23acda511d76520da95b2ce774a71815280a411df4fb7ed55ff2a6f3ec661674

    SHA512

    afebe3b75bced0cce32775619097fbb11dd41f0a9818b116bd120ac82a221cfe2da81846efe998cd2225da397159840ffb4cfa22b26b2617e3222403f3b519f4

  • C:\Users\Admin\AppData\Local\18beb77e-f50a-4caa-b9cf-cee6ae3553e7\build2.exe
    Filesize

    352KB

    MD5

    f76b7a03bc4db7e669adc6a0eb80322a

    SHA1

    ad3ef2ea2dcf95e805c7be56a7d63f654328121e

    SHA256

    c2c5560cede5fe447363e0d432707fc287312c20e92715b59700888e77eab92d

    SHA512

    626465ba82f07cdfc0f86496e5f2e0f95aea64fd7b1c90708f99eaae78cc3f04ecf3fb22de85b647837009edb62d1125673073ec083cd82e1dd61f8ddc235e5c

  • C:\Users\Admin\AppData\Local\18beb77e-f50a-4caa-b9cf-cee6ae3553e7\build2.exe
    Filesize

    352KB

    MD5

    f76b7a03bc4db7e669adc6a0eb80322a

    SHA1

    ad3ef2ea2dcf95e805c7be56a7d63f654328121e

    SHA256

    c2c5560cede5fe447363e0d432707fc287312c20e92715b59700888e77eab92d

    SHA512

    626465ba82f07cdfc0f86496e5f2e0f95aea64fd7b1c90708f99eaae78cc3f04ecf3fb22de85b647837009edb62d1125673073ec083cd82e1dd61f8ddc235e5c

  • C:\Users\Admin\AppData\Local\18beb77e-f50a-4caa-b9cf-cee6ae3553e7\build2.exe
    Filesize

    352KB

    MD5

    f76b7a03bc4db7e669adc6a0eb80322a

    SHA1

    ad3ef2ea2dcf95e805c7be56a7d63f654328121e

    SHA256

    c2c5560cede5fe447363e0d432707fc287312c20e92715b59700888e77eab92d

    SHA512

    626465ba82f07cdfc0f86496e5f2e0f95aea64fd7b1c90708f99eaae78cc3f04ecf3fb22de85b647837009edb62d1125673073ec083cd82e1dd61f8ddc235e5c

  • C:\Users\Admin\AppData\Local\18beb77e-f50a-4caa-b9cf-cee6ae3553e7\build2.exe
    Filesize

    352KB

    MD5

    f76b7a03bc4db7e669adc6a0eb80322a

    SHA1

    ad3ef2ea2dcf95e805c7be56a7d63f654328121e

    SHA256

    c2c5560cede5fe447363e0d432707fc287312c20e92715b59700888e77eab92d

    SHA512

    626465ba82f07cdfc0f86496e5f2e0f95aea64fd7b1c90708f99eaae78cc3f04ecf3fb22de85b647837009edb62d1125673073ec083cd82e1dd61f8ddc235e5c

  • C:\Users\Admin\AppData\Local\18beb77e-f50a-4caa-b9cf-cee6ae3553e7\build3.exe
    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\18beb77e-f50a-4caa-b9cf-cee6ae3553e7\build3.exe
    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\18beb77e-f50a-4caa-b9cf-cee6ae3553e7\build3.exe
    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\f49f0408-b8bc-49c9-8758-85d42b3767f5\06421199.exe
    Filesize

    824KB

    MD5

    f44da0dfe7f4581e5c415b0a17d1e973

    SHA1

    db00da4f1ca30517c43030ce8e5ccc64ea2c9d8f

    SHA256

    d35d748aebd7c8112ee9d4d7cc38f430bca5b397afec832d51f3e086b828e845

    SHA512

    d624ac9340759c87d8d9de672f5a8f2ae20c8cc88ac045929586303ecb35ee321d62a59bbbec051eda19065d712c0efc049e949f7130538b3c3afab856362a7c

  • 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/1048-134-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1048-138-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1048-135-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1048-137-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1048-149-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2896-168-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2896-255-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2896-154-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2896-161-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2896-160-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2896-170-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2896-193-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2896-153-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2896-155-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2896-171-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/3384-182-0x0000000004900000-0x0000000004956000-memory.dmp
    Filesize

    344KB

  • memory/4192-136-0x0000000004A80000-0x0000000004B9B000-memory.dmp
    Filesize

    1.1MB

  • memory/5088-183-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/5088-207-0x0000000061E00000-0x0000000061EF3000-memory.dmp
    Filesize

    972KB

  • memory/5088-248-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/5088-249-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/5088-250-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/5088-206-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/5088-184-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/5088-180-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB