Analysis

  • max time kernel
    129s
  • max time network
    178s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-07-2022 14:01

General

  • Target

    first_payload.exe

  • Size

    503KB

  • MD5

    f801b47ec91f5f75b0f5804506665b14

  • SHA1

    6ca1c47f85abaed4a3cc414b6200360ca658b2c5

  • SHA256

    62ae48d339e52a1b5be82e703025f2be10d6025f97fd784d40f2781d6ee886ec

  • SHA512

    1e3910895b9bbd23d4adf174683f83ce8b000dba606034bfb2bfaa18ffbf2293ebc4eb47bdebda46d2f326f74c963be005ddb440aa2449a21918c40a8d974322

Malware Config

Extracted

Family

snakekeylogger

Credentials

Extracted

Family

warzonerat

C2

toomuchego.ydns.eu:5200

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 3 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • WarzoneRat, AveMaria

    WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.

  • Windows security bypass 2 TTPs 1 IoCs
  • XpertRAT

    XpertRAT is a remote access trojan with various capabilities.

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 6 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Windows security modification 2 TTPs 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 5 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

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

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs
  • System policy modification 1 TTPs 1 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\first_payload.exe
    "C:\Users\Admin\AppData\Local\Temp\first_payload.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:460
    • C:\Users\Admin\AppData\Local\Temp\EGGMM.EXE
      "C:\Users\Admin\AppData\Local\Temp\EGGMM.EXE"
      2⤵
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2024
    • C:\Users\Admin\AppData\Local\Temp\GUM.EXE
      "C:\Users\Admin\AppData\Local\Temp\GUM.EXE"
      2⤵
      • UAC bypass
      • Windows security bypass
      • Executes dropped EXE
      • Windows security modification
      • Checks whether UAC is enabled
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:616
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        C:\Users\Admin\AppData\Local\Temp\GUM.EXE
        3⤵
        • Adds policy Run key to start application
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2952
    • C:\Users\Admin\AppData\Local\Temp\WALL PAPER.EXE
      "C:\Users\Admin\AppData\Local\Temp\WALL PAPER.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1956
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /f /v Load /t REG_SZ /d "C:\ProgramData\images.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2460
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /f /v Load /t REG_SZ /d "C:\ProgramData\images.exe"
          4⤵
            PID:3424
        • C:\ProgramData\images.exe
          "C:\ProgramData\images.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Accesses Microsoft Outlook profiles
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          • outlook_office_path
          • outlook_win_path
          PID:3732
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe"
            4⤵
              PID:3912

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\ProgramData\images.exe

        Filesize

        152KB

        MD5

        d934bc77b8157ece0a3bbec1527cee9b

        SHA1

        841017a8d48040f1e0d593608c2506007ea9f997

        SHA256

        c6e161181e3f246471f546f84655f3de28e86860db5c449293a56efc17024aac

        SHA512

        5b3bfd6b2f2a7d7a70cd4d40b1fe74b7fc3945dc485f86d46230d19af050d91bc39d68494b9836bf8ebbd3151b3651c753d49d7072e85295e67be8dcc0043fc8

      • C:\ProgramData\images.exe

        Filesize

        152KB

        MD5

        d934bc77b8157ece0a3bbec1527cee9b

        SHA1

        841017a8d48040f1e0d593608c2506007ea9f997

        SHA256

        c6e161181e3f246471f546f84655f3de28e86860db5c449293a56efc17024aac

        SHA512

        5b3bfd6b2f2a7d7a70cd4d40b1fe74b7fc3945dc485f86d46230d19af050d91bc39d68494b9836bf8ebbd3151b3651c753d49d7072e85295e67be8dcc0043fc8

      • C:\Users\Admin\AppData\Local\Temp\EGGMM.EXE

        Filesize

        126KB

        MD5

        350dfc66657d2d9b2231bf8bfe33497b

        SHA1

        0fb28b28c416d21f1db2d54355e89fa8ec3e3324

        SHA256

        a2bb808321745ce0239b5a84c78a801644d903ce8a6ab87193337aaf2d01fc31

        SHA512

        635132ff935ea13048839d2c535d5abbae53c77d332df7c7628dbbb5db94ffc3b5be7820bb116da94433d6c814b5b4b6811bcc32b22cae3adffb086664e010e5

      • C:\Users\Admin\AppData\Local\Temp\EGGMM.EXE

        Filesize

        126KB

        MD5

        350dfc66657d2d9b2231bf8bfe33497b

        SHA1

        0fb28b28c416d21f1db2d54355e89fa8ec3e3324

        SHA256

        a2bb808321745ce0239b5a84c78a801644d903ce8a6ab87193337aaf2d01fc31

        SHA512

        635132ff935ea13048839d2c535d5abbae53c77d332df7c7628dbbb5db94ffc3b5be7820bb116da94433d6c814b5b4b6811bcc32b22cae3adffb086664e010e5

      • C:\Users\Admin\AppData\Local\Temp\GUM.EXE

        Filesize

        172KB

        MD5

        81912e3dd162ce7c96114a84d0d58b29

        SHA1

        2def8b1c48c9e550f57c9dab915c5232a7113d57

        SHA256

        f91cf396d6cc0e3803aa25fd0770e9a252196ae616e032e4880668c8ded74dc0

        SHA512

        893b3c4483d0a307cad24c73fce27bc4e02438439fc5b07d596146bdb92767e53e60642ff6264ce80891b10c0a7f2a3f5b397560a47ee6e1244d6e5e9a80f341

      • C:\Users\Admin\AppData\Local\Temp\GUM.EXE

        Filesize

        172KB

        MD5

        81912e3dd162ce7c96114a84d0d58b29

        SHA1

        2def8b1c48c9e550f57c9dab915c5232a7113d57

        SHA256

        f91cf396d6cc0e3803aa25fd0770e9a252196ae616e032e4880668c8ded74dc0

        SHA512

        893b3c4483d0a307cad24c73fce27bc4e02438439fc5b07d596146bdb92767e53e60642ff6264ce80891b10c0a7f2a3f5b397560a47ee6e1244d6e5e9a80f341

      • C:\Users\Admin\AppData\Local\Temp\WALL PAPER.EXE

        Filesize

        152KB

        MD5

        d934bc77b8157ece0a3bbec1527cee9b

        SHA1

        841017a8d48040f1e0d593608c2506007ea9f997

        SHA256

        c6e161181e3f246471f546f84655f3de28e86860db5c449293a56efc17024aac

        SHA512

        5b3bfd6b2f2a7d7a70cd4d40b1fe74b7fc3945dc485f86d46230d19af050d91bc39d68494b9836bf8ebbd3151b3651c753d49d7072e85295e67be8dcc0043fc8

      • C:\Users\Admin\AppData\Local\Temp\WALL PAPER.EXE

        Filesize

        152KB

        MD5

        d934bc77b8157ece0a3bbec1527cee9b

        SHA1

        841017a8d48040f1e0d593608c2506007ea9f997

        SHA256

        c6e161181e3f246471f546f84655f3de28e86860db5c449293a56efc17024aac

        SHA512

        5b3bfd6b2f2a7d7a70cd4d40b1fe74b7fc3945dc485f86d46230d19af050d91bc39d68494b9836bf8ebbd3151b3651c753d49d7072e85295e67be8dcc0043fc8

      • C:\Users\Admin\AppData\Local\Temp\freebl3.dll

        Filesize

        326KB

        MD5

        ef12ab9d0b231b8f898067b2114b1bc0

        SHA1

        6d90f27b2105945f9bb77039e8b892070a5f9442

        SHA256

        2b00fc4f541ac10c94e3556ff28e30a801811c36422546a546a445aca3f410f7

        SHA512

        2aa62bfba556ad8f042942dd25aa071ff6677c257904377c1ec956fd9e862abcbf379e0cfd8c630c303a32ece75618c24e3eef58bddb705c427985b944689193

      • C:\Users\Admin\AppData\Local\Temp\mozglue.dll

        Filesize

        133KB

        MD5

        75f8cc548cabf0cc800c25047e4d3124

        SHA1

        602676768f9faecd35b48c38a0632781dfbde10c

        SHA256

        fb419a60305f17359e2ac0510233ee80e845885eee60607715c67dd88e501ef0

        SHA512

        ed831c9c769aef3be253c52542cf032afa0a8fa5fe25ca704db65ee6883c608220df7102ac2b99ee9c2e599a0f5db99fd86894a4b169e68440eb1b0d0012672f

      • C:\Users\Admin\AppData\Local\Temp\msvcp140.dll

        Filesize

        429KB

        MD5

        109f0f02fd37c84bfc7508d4227d7ed5

        SHA1

        ef7420141bb15ac334d3964082361a460bfdb975

        SHA256

        334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

        SHA512

        46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

      • C:\Users\Admin\AppData\Local\Temp\nss3.dll

        Filesize

        1.2MB

        MD5

        d7858e8449004e21b01d468e9fd04b82

        SHA1

        9524352071ede21c167e7e4f106e9526dc23ef4e

        SHA256

        78758bf7f3b3b5e3477e38354acd32d787bc1286c8bd9b873471b9c195e638db

        SHA512

        1e2c981e6c0ca36c60c6e9cae9548b866d5c524df837095b30d618d9c322def7134c20de820105400dd1b58076b66d90274f67773ac6ba914f611b419babb440

      • C:\Users\Admin\AppData\Local\Temp\softokn3.dll

        Filesize

        141KB

        MD5

        471c983513694ac3002590345f2be0da

        SHA1

        6612b9af4ff6830fa9b7d4193078434ef72f775b

        SHA256

        bb3ff746471116c6ad0339fa0522aa2a44a787e33a29c7b27649a054ecd4d00f

        SHA512

        a9b0fb923bc3b567e933de10b141a3e9213640e3d790b4c4d753cf220d55593ae8026102909969ba6bfc22da3b2fcd01e30a9f5a74bd14a0fdec9beaf0fb1410

      • C:\Users\Admin\AppData\Local\Temp\vcruntime140.dll

        Filesize

        81KB

        MD5

        7587bf9cb4147022cd5681b015183046

        SHA1

        f2106306a8f6f0da5afb7fc765cfa0757ad5a628

        SHA256

        c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

        SHA512

        0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

      • memory/616-132-0x0000000000000000-mapping.dmp

      • memory/1956-136-0x0000000000000000-mapping.dmp

      • memory/2024-130-0x0000000000000000-mapping.dmp

      • memory/2024-149-0x0000000005F00000-0x00000000060C2000-memory.dmp

        Filesize

        1.8MB

      • memory/2024-150-0x00000000060D0000-0x0000000006162000-memory.dmp

        Filesize

        584KB

      • memory/2024-143-0x0000000004BE0000-0x0000000004C7C000-memory.dmp

        Filesize

        624KB

      • memory/2024-152-0x0000000005E80000-0x0000000005E8A000-memory.dmp

        Filesize

        40KB

      • memory/2024-142-0x00000000052F0000-0x0000000005894000-memory.dmp

        Filesize

        5.6MB

      • memory/2024-141-0x00000000001F0000-0x0000000000216000-memory.dmp

        Filesize

        152KB

      • memory/2460-144-0x0000000000000000-mapping.dmp

      • memory/3424-148-0x0000000000000000-mapping.dmp

      • memory/3732-155-0x0000000004A90000-0x0000000004B14000-memory.dmp

        Filesize

        528KB

      • memory/3732-154-0x0000000004590000-0x0000000004730000-memory.dmp

        Filesize

        1.6MB

      • memory/3732-145-0x0000000000000000-mapping.dmp

      • memory/3912-153-0x0000000000FA0000-0x0000000000FA1000-memory.dmp

        Filesize

        4KB

      • memory/3912-151-0x0000000000000000-mapping.dmp