Analysis

  • max time kernel
    151s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    26-05-2022 20:51

General

  • Target

    f9d5fd99438838dc45524a23e052c830c20fe2d90254c3c9f118db7a34836ea6.exe

  • Size

    184KB

  • MD5

    969da6aa8f1b040c4f9ba5dbd4e55e16

  • SHA1

    86c88f2b0cdf846890f9a921c508aaa1e12aa53c

  • SHA256

    f9d5fd99438838dc45524a23e052c830c20fe2d90254c3c9f118db7a34836ea6

  • SHA512

    b18f37e8ceb83a4ce62afea7537adf48b47fdf76d25638ddaafb7ecde296341804394d2aecec4e7b9a0939b6b39d64050a73d3f3c5e7f75e4ed62abfaeeaf91d

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

52.3

Botnet

1415

C2

https://t.me/hyipsdigest

https://mastodon.online/@ronxik13

Attributes
  • profile_id

    1415

Extracted

Family

redline

Botnet

4

C2

45.10.43.167:26696

Attributes
  • auth_value

    907b4009a916888062785688f81bc6b3

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 1 IoCs
  • 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 2 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 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f9d5fd99438838dc45524a23e052c830c20fe2d90254c3c9f118db7a34836ea6.exe
    "C:\Users\Admin\AppData\Local\Temp\f9d5fd99438838dc45524a23e052c830c20fe2d90254c3c9f118db7a34836ea6.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2388
  • C:\Users\Admin\AppData\Local\Temp\A8D3.exe
    C:\Users\Admin\AppData\Local\Temp\A8D3.exe
    1⤵
    • Executes dropped EXE
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4144
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 10
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1532
      • C:\Windows\SysWOW64\timeout.exe
        timeout 10
        3⤵
        • Delays execution with timeout.exe
        PID:1184
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4744
  • C:\Users\Admin\AppData\Local\Temp\CF67.exe
    C:\Users\Admin\AppData\Local\Temp\CF67.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    PID:2720
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:3988
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 872
        2⤵
        • Program crash
        PID:5060
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:5036
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3988 -ip 3988
        1⤵
          PID:3820

        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\mozglue.dll
          Filesize

          133KB

          MD5

          8f73c08a9660691143661bf7332c3c27

          SHA1

          37fa65dd737c50fda710fdbde89e51374d0c204a

          SHA256

          3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

          SHA512

          0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

        • C:\ProgramData\nss3.dll
          Filesize

          1.2MB

          MD5

          bfac4e3c5908856ba17d41edcd455a51

          SHA1

          8eec7e888767aa9e4cca8ff246eb2aacb9170428

          SHA256

          e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

          SHA512

          2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

        • C:\Users\Admin\AppData\Local\Temp\A8D3.exe
          Filesize

          342KB

          MD5

          5081f141de74d785dacfe8254097d29f

          SHA1

          bd8f230e9c79d66718871c0b2a770988e021aa21

          SHA256

          dac6ad2b96313e9fed6a84abc829204b40effc0f89fc602889377b589c28fe4a

          SHA512

          09d507af2faece517c5bdc69ab37d468a9cc9dc177e3737d4e31beffcb38037827c1d3f95a7de5321c914a85e69e1b4fb1c9f5d93ef08457bef57109cca0b6dc

        • C:\Users\Admin\AppData\Local\Temp\A8D3.exe
          Filesize

          342KB

          MD5

          5081f141de74d785dacfe8254097d29f

          SHA1

          bd8f230e9c79d66718871c0b2a770988e021aa21

          SHA256

          dac6ad2b96313e9fed6a84abc829204b40effc0f89fc602889377b589c28fe4a

          SHA512

          09d507af2faece517c5bdc69ab37d468a9cc9dc177e3737d4e31beffcb38037827c1d3f95a7de5321c914a85e69e1b4fb1c9f5d93ef08457bef57109cca0b6dc

        • C:\Users\Admin\AppData\Local\Temp\CF67.exe
          Filesize

          424KB

          MD5

          6641efc4581527396f07ecb7064b0b70

          SHA1

          d7d311b3c434142ae4475bce8a29d00db63171fd

          SHA256

          ce72b2805cd1f5215210a5318ceba62bebafe82a54fc593487b361375c24302e

          SHA512

          43c5bccfbeea12585b97827e17a21b1de8856f3d177d58422022393d8cd28d8a0e6e8468468b798a1f71341f22705ecf5bd69b8ea3395a3936912459d77c313f

        • C:\Users\Admin\AppData\Local\Temp\CF67.exe
          Filesize

          424KB

          MD5

          6641efc4581527396f07ecb7064b0b70

          SHA1

          d7d311b3c434142ae4475bce8a29d00db63171fd

          SHA256

          ce72b2805cd1f5215210a5318ceba62bebafe82a54fc593487b361375c24302e

          SHA512

          43c5bccfbeea12585b97827e17a21b1de8856f3d177d58422022393d8cd28d8a0e6e8468468b798a1f71341f22705ecf5bd69b8ea3395a3936912459d77c313f

        • memory/1184-168-0x0000000000000000-mapping.dmp
        • memory/1532-167-0x0000000000000000-mapping.dmp
        • memory/2388-130-0x000000000071E000-0x0000000000727000-memory.dmp
          Filesize

          36KB

        • memory/2388-131-0x00000000006D0000-0x00000000006D9000-memory.dmp
          Filesize

          36KB

        • memory/2388-132-0x0000000000400000-0x0000000000435000-memory.dmp
          Filesize

          212KB

        • memory/2720-146-0x0000000060900000-0x0000000060992000-memory.dmp
          Filesize

          584KB

        • memory/2720-143-0x0000000000A59000-0x0000000000A87000-memory.dmp
          Filesize

          184KB

        • memory/2720-144-0x0000000000D10000-0x0000000000D5F000-memory.dmp
          Filesize

          316KB

        • memory/2720-145-0x0000000000400000-0x0000000000933000-memory.dmp
          Filesize

          5.2MB

        • memory/2720-138-0x0000000000000000-mapping.dmp
        • memory/2812-133-0x00000000027D0000-0x00000000027E6000-memory.dmp
          Filesize

          88KB

        • memory/3988-141-0x0000000000000000-mapping.dmp
        • memory/4144-170-0x00000000295F0000-0x0000000029682000-memory.dmp
          Filesize

          584KB

        • memory/4144-171-0x0000000029C40000-0x000000002A1E4000-memory.dmp
          Filesize

          5.6MB

        • memory/4144-137-0x0000000000C00000-0x0000000000C5C000-memory.dmp
          Filesize

          368KB

        • memory/4144-169-0x00000000056F0000-0x0000000005756000-memory.dmp
          Filesize

          408KB

        • memory/4144-134-0x0000000000000000-mapping.dmp
        • memory/4744-175-0x0000000004CD0000-0x0000000004CE2000-memory.dmp
          Filesize

          72KB

        • memory/4744-172-0x0000000000000000-mapping.dmp
        • memory/4744-173-0x0000000000400000-0x0000000000420000-memory.dmp
          Filesize

          128KB

        • memory/4744-174-0x0000000005250000-0x0000000005868000-memory.dmp
          Filesize

          6.1MB

        • memory/4744-176-0x0000000004E00000-0x0000000004F0A000-memory.dmp
          Filesize

          1.0MB

        • memory/4744-177-0x0000000004D70000-0x0000000004DAC000-memory.dmp
          Filesize

          240KB

        • memory/4744-178-0x0000000005BF0000-0x0000000005C66000-memory.dmp
          Filesize

          472KB

        • memory/4744-179-0x0000000005EF0000-0x0000000005F0E000-memory.dmp
          Filesize

          120KB

        • memory/4744-180-0x0000000006AE0000-0x0000000006CA2000-memory.dmp
          Filesize

          1.8MB

        • memory/4744-181-0x00000000071E0000-0x000000000770C000-memory.dmp
          Filesize

          5.2MB

        • memory/4744-182-0x0000000007090000-0x00000000070E0000-memory.dmp
          Filesize

          320KB

        • memory/5036-142-0x0000000000000000-mapping.dmp