Analysis

  • max time kernel
    174s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 08:30

General

  • Target

    fe8fa79b45584f29e6c721ace789d45d7ea0ba2500223be99a7898b1a228f2a2.exe

  • Size

    252KB

  • MD5

    786b1d43f22a21058eebe1cb03190d7d

  • SHA1

    cf8b4e5ac380cafab20633e71eb53f37fd468f6e

  • SHA256

    fe8fa79b45584f29e6c721ace789d45d7ea0ba2500223be99a7898b1a228f2a2

  • SHA512

    4cfe7fe865516996410dce9ea0ccb505b925067bee203cbdefc9985b3018ade6ae74eeeae0647ae5d51e96cdead23867238731c9cd1fa0927d7c9189068d503c

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://monsutiur4.com/

http://nusurionuy5ff.at/

http://moroitomo4.net/

http://susuerulianita1.net/

http://cucumbetuturel4.com/

http://nunuslushau.com/

http://linislominyt11.at/

http://luxulixionus.net/

http://lilisjjoer44.com/

http://nikogminut88.at/

http://limo00ruling.org/

http://mini55tunul.com/

http://samnutu11nuli.com/

http://nikogkojam.org/

rc4.i32
rc4.i32

Extracted

Family

vidar

Version

52.2

Botnet

937

C2

https://t.me/netflixaccsfree

https://mastodon.social/@ronxik12

Attributes
  • profile_id

    937

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • suricata: ET MALWARE Vidar/Arkei/Megumin Stealer Keywords Retrieved

    suricata: ET MALWARE Vidar/Arkei/Megumin Stealer Keywords Retrieved

  • suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

    suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

  • Vidar Stealer 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 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
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fe8fa79b45584f29e6c721ace789d45d7ea0ba2500223be99a7898b1a228f2a2.exe
    "C:\Users\Admin\AppData\Local\Temp\fe8fa79b45584f29e6c721ace789d45d7ea0ba2500223be99a7898b1a228f2a2.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2628
  • C:\Users\Admin\AppData\Local\Temp\EABE.exe
    C:\Users\Admin\AppData\Local\Temp\EABE.exe
    1⤵
    • Executes dropped EXE
    • Checks computer location settings
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:3976
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im EABE.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\EABE.exe" & del C:\ProgramData\*.dll & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2820
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im EABE.exe /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1652
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 6
        3⤵
        • Delays execution with timeout.exe
        PID:2432
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3976 -s 1960
      2⤵
      • Program crash
      PID:2944
  • C:\Users\Admin\AppData\Local\Temp\F3A8.exe
    C:\Users\Admin\AppData\Local\Temp\F3A8.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:724
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2016
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:2756
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2756 -s 888
        2⤵
        • Program crash
        PID:1808
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:5080
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2756 -ip 2756
        1⤵
          PID:3820
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3976 -ip 3976
          1⤵
            PID:4596
          • C:\Users\Admin\AppData\Roaming\ajcfcvu
            C:\Users\Admin\AppData\Roaming\ajcfcvu
            1⤵
            • Executes dropped EXE
            • Checks SCSI registry key(s)
            • Suspicious behavior: MapViewOfSection
            PID:3076

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Credential Access

          Credentials in Files

          3
          T1081

          Discovery

          Query Registry

          4
          T1012

          System Information Discovery

          4
          T1082

          Peripheral Device Discovery

          1
          T1120

          Collection

          Data from Local System

          3
          T1005

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\ProgramData\freebl3.dll
            Filesize

            326KB

            MD5

            ef2834ac4ee7d6724f255beaf527e635

            SHA1

            5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

            SHA256

            a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

            SHA512

            c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

          • C:\ProgramData\mozglue.dll
            Filesize

            133KB

            MD5

            8f73c08a9660691143661bf7332c3c27

            SHA1

            37fa65dd737c50fda710fdbde89e51374d0c204a

            SHA256

            3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

            SHA512

            0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

          • C:\ProgramData\mozglue.dll
            Filesize

            133KB

            MD5

            8f73c08a9660691143661bf7332c3c27

            SHA1

            37fa65dd737c50fda710fdbde89e51374d0c204a

            SHA256

            3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

            SHA512

            0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

          • C:\ProgramData\msvcp140.dll
            Filesize

            429KB

            MD5

            109f0f02fd37c84bfc7508d4227d7ed5

            SHA1

            ef7420141bb15ac334d3964082361a460bfdb975

            SHA256

            334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

            SHA512

            46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

          • C:\ProgramData\nss3.dll
            Filesize

            1.2MB

            MD5

            bfac4e3c5908856ba17d41edcd455a51

            SHA1

            8eec7e888767aa9e4cca8ff246eb2aacb9170428

            SHA256

            e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

            SHA512

            2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

          • C:\ProgramData\nss3.dll
            Filesize

            1.2MB

            MD5

            bfac4e3c5908856ba17d41edcd455a51

            SHA1

            8eec7e888767aa9e4cca8ff246eb2aacb9170428

            SHA256

            e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

            SHA512

            2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

          • C:\ProgramData\softokn3.dll
            Filesize

            141KB

            MD5

            a2ee53de9167bf0d6c019303b7ca84e5

            SHA1

            2a3c737fa1157e8483815e98b666408a18c0db42

            SHA256

            43536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083

            SHA512

            45b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8

          • C:\ProgramData\vcruntime140.dll
            Filesize

            81KB

            MD5

            7587bf9cb4147022cd5681b015183046

            SHA1

            f2106306a8f6f0da5afb7fc765cfa0757ad5a628

            SHA256

            c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

            SHA512

            0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

          • C:\Users\Admin\AppData\Local\Temp\EABE.exe
            Filesize

            444KB

            MD5

            cec242c5706210954664eb14621a519c

            SHA1

            09132763701c506d109d70156792f6f46ff43317

            SHA256

            e3c80aaf2e1fa718eac96bd2d9868d361f92e04508785b5375c9648b8c7337f8

            SHA512

            9ea1c7676820b6c03ebd81a358d1740d9b5bcaa8d68141ecb675dd7e8448d69f7279f59a147ce75d621184f5129a4e923c74496365a765e8d11e712422880d8a

          • C:\Users\Admin\AppData\Local\Temp\EABE.exe
            Filesize

            444KB

            MD5

            cec242c5706210954664eb14621a519c

            SHA1

            09132763701c506d109d70156792f6f46ff43317

            SHA256

            e3c80aaf2e1fa718eac96bd2d9868d361f92e04508785b5375c9648b8c7337f8

            SHA512

            9ea1c7676820b6c03ebd81a358d1740d9b5bcaa8d68141ecb675dd7e8448d69f7279f59a147ce75d621184f5129a4e923c74496365a765e8d11e712422880d8a

          • C:\Users\Admin\AppData\Local\Temp\F3A8.exe
            Filesize

            502KB

            MD5

            e78f160115ea41919fe427be521e3355

            SHA1

            8e4ed2a5422fe1fe5cdfde18c75f3c3dbb76455e

            SHA256

            83d4ef284f65adb34c7834a0aeb9026e05fd369b7e43c47cf56704ba95dc2edf

            SHA512

            910663e1a825e22134385d6d7007f32a6efe0dd54237007543bbdc40024ca4e140796eb09cffcf3145f96fc1dc128d1370a8c316c183a9434251ee51c31f45b3

          • C:\Users\Admin\AppData\Local\Temp\F3A8.exe
            Filesize

            502KB

            MD5

            e78f160115ea41919fe427be521e3355

            SHA1

            8e4ed2a5422fe1fe5cdfde18c75f3c3dbb76455e

            SHA256

            83d4ef284f65adb34c7834a0aeb9026e05fd369b7e43c47cf56704ba95dc2edf

            SHA512

            910663e1a825e22134385d6d7007f32a6efe0dd54237007543bbdc40024ca4e140796eb09cffcf3145f96fc1dc128d1370a8c316c183a9434251ee51c31f45b3

          • C:\Users\Admin\AppData\Roaming\ajcfcvu
            Filesize

            252KB

            MD5

            786b1d43f22a21058eebe1cb03190d7d

            SHA1

            cf8b4e5ac380cafab20633e71eb53f37fd468f6e

            SHA256

            fe8fa79b45584f29e6c721ace789d45d7ea0ba2500223be99a7898b1a228f2a2

            SHA512

            4cfe7fe865516996410dce9ea0ccb505b925067bee203cbdefc9985b3018ade6ae74eeeae0647ae5d51e96cdead23867238731c9cd1fa0927d7c9189068d503c

          • C:\Users\Admin\AppData\Roaming\ajcfcvu
            Filesize

            252KB

            MD5

            786b1d43f22a21058eebe1cb03190d7d

            SHA1

            cf8b4e5ac380cafab20633e71eb53f37fd468f6e

            SHA256

            fe8fa79b45584f29e6c721ace789d45d7ea0ba2500223be99a7898b1a228f2a2

            SHA512

            4cfe7fe865516996410dce9ea0ccb505b925067bee203cbdefc9985b3018ade6ae74eeeae0647ae5d51e96cdead23867238731c9cd1fa0927d7c9189068d503c

          • memory/724-137-0x0000000000000000-mapping.dmp
          • memory/1064-196-0x0000000002890000-0x00000000028A6000-memory.dmp
            Filesize

            88KB

          • memory/1064-133-0x0000000000780000-0x0000000000796000-memory.dmp
            Filesize

            88KB

          • memory/1652-182-0x0000000000000000-mapping.dmp
          • memory/2016-179-0x0000000008DB0000-0x0000000008E26000-memory.dmp
            Filesize

            472KB

          • memory/2016-142-0x0000000000000000-mapping.dmp
          • memory/2016-151-0x0000000007A60000-0x0000000007A9C000-memory.dmp
            Filesize

            240KB

          • memory/2016-155-0x0000000007D90000-0x0000000007DF6000-memory.dmp
            Filesize

            408KB

          • memory/2016-185-0x000000000A060000-0x000000000A58C000-memory.dmp
            Filesize

            5.2MB

          • memory/2016-150-0x0000000007B30000-0x0000000007C3A000-memory.dmp
            Filesize

            1.0MB

          • memory/2016-149-0x0000000007A00000-0x0000000007A12000-memory.dmp
            Filesize

            72KB

          • memory/2016-177-0x00000000091E0000-0x0000000009784000-memory.dmp
            Filesize

            5.6MB

          • memory/2016-178-0x0000000008D10000-0x0000000008DA2000-memory.dmp
            Filesize

            584KB

          • memory/2016-148-0x0000000007F90000-0x00000000085A8000-memory.dmp
            Filesize

            6.1MB

          • memory/2016-180-0x0000000008F90000-0x0000000008FAE000-memory.dmp
            Filesize

            120KB

          • memory/2016-184-0x0000000009960000-0x0000000009B22000-memory.dmp
            Filesize

            1.8MB

          • memory/2016-143-0x0000000000400000-0x0000000000418000-memory.dmp
            Filesize

            96KB

          • memory/2432-183-0x0000000000000000-mapping.dmp
          • memory/2628-130-0x0000000002B8E000-0x0000000002B97000-memory.dmp
            Filesize

            36KB

          • memory/2628-132-0x0000000000400000-0x0000000002B5B000-memory.dmp
            Filesize

            39.4MB

          • memory/2628-131-0x0000000002B60000-0x0000000002B69000-memory.dmp
            Filesize

            36KB

          • memory/2756-140-0x0000000000000000-mapping.dmp
          • memory/2820-181-0x0000000000000000-mapping.dmp
          • memory/3076-194-0x0000000002DDD000-0x0000000002DE6000-memory.dmp
            Filesize

            36KB

          • memory/3076-195-0x0000000000400000-0x0000000002B5B000-memory.dmp
            Filesize

            39.4MB

          • memory/3976-156-0x0000000060900000-0x0000000060992000-memory.dmp
            Filesize

            584KB

          • memory/3976-154-0x0000000000400000-0x0000000002B8D000-memory.dmp
            Filesize

            39.6MB

          • memory/3976-153-0x0000000002D10000-0x0000000002D5E000-memory.dmp
            Filesize

            312KB

          • memory/3976-152-0x0000000002DDF000-0x0000000002E0D000-memory.dmp
            Filesize

            184KB

          • memory/3976-134-0x0000000000000000-mapping.dmp
          • memory/5080-141-0x0000000000000000-mapping.dmp