Analysis

  • max time kernel
    98s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    12-11-2020 00:01

General

  • Target

    34a27a9beb4f68668a75967b9ea609dd2a958b29c66b70e0bd8e69bc5456fedb.exe

  • Size

    667KB

  • MD5

    a7bb277ebea155081e10479495249ad7

  • SHA1

    47b8964f0904bd37997d8d8580fcf08fc76b98d1

  • SHA256

    34a27a9beb4f68668a75967b9ea609dd2a958b29c66b70e0bd8e69bc5456fedb

  • SHA512

    c53f9f3e654b963cf61c2112f4470809c582994235eb16ffd4f2edf7b68f16b3ee65622b0dfae2aed8e4f0859b320d48ac5e7a5268b0f3b51dc97197e8b96701

Malware Config

Extracted

Family

azorult

C2

http://195.245.112.115/index.php

Extracted

Family

oski

C2

morasergiov.ac.ug

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.

  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • 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 2 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: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\34a27a9beb4f68668a75967b9ea609dd2a958b29c66b70e0bd8e69bc5456fedb.exe
    "C:\Users\Admin\AppData\Local\Temp\34a27a9beb4f68668a75967b9ea609dd2a958b29c66b70e0bd8e69bc5456fedb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:500
    • C:\Users\Admin\AppData\Local\Temp\oscjgfhwvvas.exe
      "C:\Users\Admin\AppData\Local\Temp\oscjgfhwvvas.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2200
      • C:\Users\Admin\AppData\Local\Temp\oscjgfhwvvas.exe
        "{path}"
        3⤵
        • Executes dropped EXE
        PID:3940
      • C:\Users\Admin\AppData\Local\Temp\oscjgfhwvvas.exe
        "{path}"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious use of WriteProcessMemory
        PID:3920
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /pid 3920 & erase C:\Users\Admin\AppData\Local\Temp\oscjgfhwvvas.exe & RD /S /Q C:\\ProgramData\\734014943863516\\* & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3460
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /pid 3920
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:1836
    • C:\Users\Admin\AppData\Local\Temp\34a27a9beb4f68668a75967b9ea609dd2a958b29c66b70e0bd8e69bc5456fedb.exe
      "{path}"
      2⤵
        PID:496

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\oscjgfhwvvas.exe

      MD5

      9c4dae36c101af2a1bf1b1de16ee5868

      SHA1

      bcfc8812e4e9457366c8930309875aae3c1c7a73

      SHA256

      170d07557b53788f7718957661880e48e7e8aa711d417ef722ef1da67beb9e58

      SHA512

      c2b03abf2ebcc8d7a3b6815594b7bcbf46adb5843c3dc7a96753df616343b3c8fcbe156ccc892e061d4ea86c95199a58c27490e53b5eaff26fc606f77f8c5bca

    • C:\Users\Admin\AppData\Local\Temp\oscjgfhwvvas.exe

      MD5

      9c4dae36c101af2a1bf1b1de16ee5868

      SHA1

      bcfc8812e4e9457366c8930309875aae3c1c7a73

      SHA256

      170d07557b53788f7718957661880e48e7e8aa711d417ef722ef1da67beb9e58

      SHA512

      c2b03abf2ebcc8d7a3b6815594b7bcbf46adb5843c3dc7a96753df616343b3c8fcbe156ccc892e061d4ea86c95199a58c27490e53b5eaff26fc606f77f8c5bca

    • C:\Users\Admin\AppData\Local\Temp\oscjgfhwvvas.exe

      MD5

      9c4dae36c101af2a1bf1b1de16ee5868

      SHA1

      bcfc8812e4e9457366c8930309875aae3c1c7a73

      SHA256

      170d07557b53788f7718957661880e48e7e8aa711d417ef722ef1da67beb9e58

      SHA512

      c2b03abf2ebcc8d7a3b6815594b7bcbf46adb5843c3dc7a96753df616343b3c8fcbe156ccc892e061d4ea86c95199a58c27490e53b5eaff26fc606f77f8c5bca

    • C:\Users\Admin\AppData\Local\Temp\oscjgfhwvvas.exe

      MD5

      9c4dae36c101af2a1bf1b1de16ee5868

      SHA1

      bcfc8812e4e9457366c8930309875aae3c1c7a73

      SHA256

      170d07557b53788f7718957661880e48e7e8aa711d417ef722ef1da67beb9e58

      SHA512

      c2b03abf2ebcc8d7a3b6815594b7bcbf46adb5843c3dc7a96753df616343b3c8fcbe156ccc892e061d4ea86c95199a58c27490e53b5eaff26fc606f77f8c5bca

    • \ProgramData\mozglue.dll

      MD5

      8f73c08a9660691143661bf7332c3c27

      SHA1

      37fa65dd737c50fda710fdbde89e51374d0c204a

      SHA256

      3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

      SHA512

      0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

    • \ProgramData\nss3.dll

      MD5

      bfac4e3c5908856ba17d41edcd455a51

      SHA1

      8eec7e888767aa9e4cca8ff246eb2aacb9170428

      SHA256

      e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

      SHA512

      2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

    • \ProgramData\sqlite3.dll

      MD5

      e477a96c8f2b18d6b5c27bde49c990bf

      SHA1

      e980c9bf41330d1e5bd04556db4646a0210f7409

      SHA256

      16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

      SHA512

      335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

    • memory/496-22-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/496-20-0x000000000041A684-mapping.dmp

    • memory/496-18-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/500-10-0x0000000004A80000-0x0000000004A81000-memory.dmp

      Filesize

      4KB

    • memory/500-14-0x00000000081D0000-0x00000000081D1000-memory.dmp

      Filesize

      4KB

    • memory/500-13-0x0000000005270000-0x00000000052B7000-memory.dmp

      Filesize

      284KB

    • memory/500-0-0x0000000073560000-0x0000000073C4E000-memory.dmp

      Filesize

      6.9MB

    • memory/500-12-0x0000000005B20000-0x0000000005B34000-memory.dmp

      Filesize

      80KB

    • memory/500-11-0x0000000008500000-0x0000000008501000-memory.dmp

      Filesize

      4KB

    • memory/500-5-0x0000000004BF0000-0x0000000004BF1000-memory.dmp

      Filesize

      4KB

    • memory/500-4-0x00000000094D0000-0x00000000094D1000-memory.dmp

      Filesize

      4KB

    • memory/500-3-0x0000000006F70000-0x0000000006FC2000-memory.dmp

      Filesize

      328KB

    • memory/500-1-0x0000000000200000-0x0000000000201000-memory.dmp

      Filesize

      4KB

    • memory/1836-51-0x0000000000000000-mapping.dmp

    • memory/2200-19-0x0000000073560000-0x0000000073C4E000-memory.dmp

      Filesize

      6.9MB

    • memory/2200-31-0x0000000008F30000-0x0000000008F89000-memory.dmp

      Filesize

      356KB

    • memory/2200-24-0x00000000055E0000-0x000000000563B000-memory.dmp

      Filesize

      364KB

    • memory/2200-21-0x0000000000CA0000-0x0000000000CA1000-memory.dmp

      Filesize

      4KB

    • memory/2200-15-0x0000000000000000-mapping.dmp

    • memory/3460-49-0x0000000000000000-mapping.dmp

    • memory/3920-37-0x0000000000417A8B-mapping.dmp

    • memory/3920-36-0x0000000000400000-0x0000000000434000-memory.dmp

      Filesize

      208KB

    • memory/3920-39-0x0000000000400000-0x0000000000434000-memory.dmp

      Filesize

      208KB