Analysis

  • max time kernel
    133s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    08-03-2022 13:11

General

  • Target

    tmp.exe

  • Size

    868KB

  • MD5

    f9af0046085177c4ae153bd1eacde3e8

  • SHA1

    4f6fe60cd9bb7644cb30003799aa97e8e3947b0c

  • SHA256

    857fc01da428dccc15e996c5e737eda4148df3676c987a4416c5bb0768ce982d

  • SHA512

    f2f828a8a99d54d6757a51060e1665b2146afccf5b5fa529db691ce761b49c8a170b19a692ed7b32c550eee5b5697fdb67f85c5db260047506f7368c81a1fcee

Malware Config

Extracted

Family

oski

C2

pretorian.ug

Extracted

Family

azorult

C2

http://195.245.112.115/index.php

Extracted

Family

raccoon

Botnet

125d9f8ed76e486f6563be097a710bd4cba7f7f2

Attributes
  • url4cnc

    http://5.252.178.180/brikitiki

    https://t.me/brikitiki

rc4.plain
rc4.plain

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

  • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2

    suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2

  • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2

    suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2

  • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

  • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

    suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

  • suricata: ET MALWARE Win32.Raccoon Stealer - Telegram Mirror Checkin (generic)

    suricata: ET MALWARE Win32.Raccoon Stealer - Telegram Mirror Checkin (generic)

  • suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M13

    suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M13

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 1 IoCs

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

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1540
    • C:\Users\Admin\AppData\Local\Temp\Dbvsdfe.exe
      "C:\Users\Admin\AppData\Local\Temp\Dbvsdfe.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2164
      • C:\Users\Admin\AppData\Local\Temp\Dbvsdfe.exe
        "C:\Users\Admin\AppData\Local\Temp\Dbvsdfe.exe"
        3⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious use of WriteProcessMemory
        PID:1468
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /pid 1468 & erase C:\Users\Admin\AppData\Local\Temp\Dbvsdfe.exe & RD /S /Q C:\\ProgramData\\517457729417602\\* & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1348
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /pid 1468
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:2288
    • C:\Users\Admin\AppData\Local\Temp\dfgasdme.exe
      "C:\Users\Admin\AppData\Local\Temp\dfgasdme.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2372
      • C:\Users\Admin\AppData\Local\Temp\dfgasdme.exe
        "C:\Users\Admin\AppData\Local\Temp\dfgasdme.exe"
        3⤵
        • Executes dropped EXE
        PID:4700
    • C:\Users\Admin\AppData\Local\Temp\tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
      2⤵
        PID:1556

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    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
      MD5

      8f73c08a9660691143661bf7332c3c27

      SHA1

      37fa65dd737c50fda710fdbde89e51374d0c204a

      SHA256

      3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

      SHA512

      0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

    • C:\ProgramData\nss3.dll
      MD5

      bfac4e3c5908856ba17d41edcd455a51

      SHA1

      8eec7e888767aa9e4cca8ff246eb2aacb9170428

      SHA256

      e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

      SHA512

      2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

    • C:\ProgramData\sqlite3.dll
      MD5

      e477a96c8f2b18d6b5c27bde49c990bf

      SHA1

      e980c9bf41330d1e5bd04556db4646a0210f7409

      SHA256

      16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

      SHA512

      335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

    • C:\Users\Admin\AppData\Local\Temp\Dbvsdfe.exe
      MD5

      3466dbd3779c31dc2fccfe73e6d6a44e

      SHA1

      9e3b082853d4b3b1dd1a0e4877ee4763a02c3171

      SHA256

      58dedea111e322e46e115f2344c5685224004c0ebac9ab1cfba88c3105e4e5d4

      SHA512

      4f75e9095685f6bf3a570cd437cf9251b586ab95c7b3135750efa611d347bd4b816ba1525e08fd7776dadb03d62dbc01b9f6c8d0ba5b59d0ad2b5bf2052b67b3

    • C:\Users\Admin\AppData\Local\Temp\Dbvsdfe.exe
      MD5

      3466dbd3779c31dc2fccfe73e6d6a44e

      SHA1

      9e3b082853d4b3b1dd1a0e4877ee4763a02c3171

      SHA256

      58dedea111e322e46e115f2344c5685224004c0ebac9ab1cfba88c3105e4e5d4

      SHA512

      4f75e9095685f6bf3a570cd437cf9251b586ab95c7b3135750efa611d347bd4b816ba1525e08fd7776dadb03d62dbc01b9f6c8d0ba5b59d0ad2b5bf2052b67b3

    • C:\Users\Admin\AppData\Local\Temp\Dbvsdfe.exe
      MD5

      3466dbd3779c31dc2fccfe73e6d6a44e

      SHA1

      9e3b082853d4b3b1dd1a0e4877ee4763a02c3171

      SHA256

      58dedea111e322e46e115f2344c5685224004c0ebac9ab1cfba88c3105e4e5d4

      SHA512

      4f75e9095685f6bf3a570cd437cf9251b586ab95c7b3135750efa611d347bd4b816ba1525e08fd7776dadb03d62dbc01b9f6c8d0ba5b59d0ad2b5bf2052b67b3

    • C:\Users\Admin\AppData\Local\Temp\dfgasdme.exe
      MD5

      bead6aca8d274c82140361874ca95b59

      SHA1

      33d6cade432ebc63043170e1a8b049f51b093e59

      SHA256

      5820149ad3c898bdc7b9cf0ff98648f32192c9c5da5914aa1ae1cbe8a915c388

      SHA512

      293c616ca82744b34bd2ee389314de7b0fd05cc2e7d02aac08da7c11c1c201f9c026bcc66ee51d5bd0f9ee6d20660a50a9db19ca217479366ceb68d7d159eda8

    • C:\Users\Admin\AppData\Local\Temp\dfgasdme.exe
      MD5

      bead6aca8d274c82140361874ca95b59

      SHA1

      33d6cade432ebc63043170e1a8b049f51b093e59

      SHA256

      5820149ad3c898bdc7b9cf0ff98648f32192c9c5da5914aa1ae1cbe8a915c388

      SHA512

      293c616ca82744b34bd2ee389314de7b0fd05cc2e7d02aac08da7c11c1c201f9c026bcc66ee51d5bd0f9ee6d20660a50a9db19ca217479366ceb68d7d159eda8

    • C:\Users\Admin\AppData\Local\Temp\dfgasdme.exe
      MD5

      bead6aca8d274c82140361874ca95b59

      SHA1

      33d6cade432ebc63043170e1a8b049f51b093e59

      SHA256

      5820149ad3c898bdc7b9cf0ff98648f32192c9c5da5914aa1ae1cbe8a915c388

      SHA512

      293c616ca82744b34bd2ee389314de7b0fd05cc2e7d02aac08da7c11c1c201f9c026bcc66ee51d5bd0f9ee6d20660a50a9db19ca217479366ceb68d7d159eda8

    • memory/1468-148-0x0000000000400000-0x0000000000434000-memory.dmp
      Filesize

      208KB

    • memory/1468-150-0x0000000000580000-0x0000000000581000-memory.dmp
      Filesize

      4KB

    • memory/1468-149-0x0000000077A00000-0x0000000077BA3000-memory.dmp
      Filesize

      1.6MB

    • memory/1540-141-0x00000000029B0000-0x00000000029B1000-memory.dmp
      Filesize

      4KB

    • memory/1540-140-0x0000000077A00000-0x0000000077BA3000-memory.dmp
      Filesize

      1.6MB

    • memory/1556-155-0x0000000000400000-0x0000000000493000-memory.dmp
      Filesize

      588KB

    • memory/1556-156-0x0000000077A00000-0x0000000077BA3000-memory.dmp
      Filesize

      1.6MB

    • memory/2164-142-0x0000000077A00000-0x0000000077BA3000-memory.dmp
      Filesize

      1.6MB

    • memory/2164-147-0x0000000000700000-0x0000000000706000-memory.dmp
      Filesize

      24KB

    • memory/2164-143-0x00000000006D0000-0x00000000006D1000-memory.dmp
      Filesize

      4KB

    • memory/2372-145-0x00000000007C0000-0x00000000007C1000-memory.dmp
      Filesize

      4KB

    • memory/2372-144-0x0000000077A00000-0x0000000077BA3000-memory.dmp
      Filesize

      1.6MB

    • memory/4700-154-0x0000000077A00000-0x0000000077BA3000-memory.dmp
      Filesize

      1.6MB

    • memory/4700-153-0x0000000000550000-0x0000000000551000-memory.dmp
      Filesize

      4KB

    • memory/4700-152-0x0000000000400000-0x0000000000420000-memory.dmp
      Filesize

      128KB