Analysis

  • max time kernel
    133s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/03/2024, 00:00

General

  • Target

    f3ccdc820e1d56d3823fa7a9c074413b56940a48ff8ec5bfa11e601825753554.exe

  • Size

    411KB

  • MD5

    64d762f221640075cd05d401454ece8e

  • SHA1

    7351e5ded174e1985ebe1e189fb176f90c22c1f1

  • SHA256

    f3ccdc820e1d56d3823fa7a9c074413b56940a48ff8ec5bfa11e601825753554

  • SHA512

    5e3455993af4483f0e916dcdc92a4b02dabf8208a3be6e70c9ccbd557526cc833736549d5370690da8e0e9190257a942fcbc21bbc034d3c3a3c09b8593cb46bd

  • SSDEEP

    6144:GT5x3TR7tNkZ0NCMyM3BUnK4vkr+8JdObgOtWRPezdS8RWSmBUH/1/TAkXCF:+dt7tGoFyDnd8i8dojz0wBAkSF

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.209

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Signatures

  • Detect ZGRat V1 3 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • ZGRat

    ZGRat is remote access trojan written in C#.

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

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

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 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 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 3 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.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f3ccdc820e1d56d3823fa7a9c074413b56940a48ff8ec5bfa11e601825753554.exe
    "C:\Users\Admin\AppData\Local\Temp\f3ccdc820e1d56d3823fa7a9c074413b56940a48ff8ec5bfa11e601825753554.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:400
    • C:\Users\Admin\AppData\Local\Temp\ub4.0.exe
      "C:\Users\Admin\AppData\Local\Temp\ub4.0.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3188
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\KKFBAAFCGI.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4412
        • C:\Users\Admin\AppData\Local\Temp\KKFBAAFCGI.exe
          "C:\Users\Admin\AppData\Local\Temp\KKFBAAFCGI.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:4736
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\KKFBAAFCGI.exe
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1996
            • C:\Windows\SysWOW64\PING.EXE
              ping 2.2.2.2 -n 1 -w 3000
              6⤵
              • Runs ping.exe
              PID:2196
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 2364
        3⤵
        • Program crash
        PID:4512
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 2356
        3⤵
        • Program crash
        PID:3604
    • C:\Users\Admin\AppData\Local\Temp\ub4.1.exe
      "C:\Users\Admin\AppData\Local\Temp\ub4.1.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4956
      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
        "C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3828
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 400 -s 1188
      2⤵
      • Program crash
      PID:1260
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 400 -ip 400
    1⤵
      PID:3156
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3188 -ip 3188
      1⤵
        PID:4416
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3188 -ip 3188
        1⤵
          PID:1924

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\ProgramData\Are.docx

                Filesize

                11KB

                MD5

                a33e5b189842c5867f46566bdbf7a095

                SHA1

                e1c06359f6a76da90d19e8fd95e79c832edb3196

                SHA256

                5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

                SHA512

                f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

              • C:\ProgramData\mozglue.dll

                Filesize

                593KB

                MD5

                c8fd9be83bc728cc04beffafc2907fe9

                SHA1

                95ab9f701e0024cedfbd312bcfe4e726744c4f2e

                SHA256

                ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

                SHA512

                fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

              • C:\ProgramData\nss3.dll

                Filesize

                2.0MB

                MD5

                1cc453cdf74f31e4d913ff9c10acdde2

                SHA1

                6e85eae544d6e965f15fa5c39700fa7202f3aafe

                SHA256

                ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

                SHA512

                dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

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

                Filesize

                106KB

                MD5

                fe380780b5c35bd6d54541791151c2be

                SHA1

                7fe3a583cf91474c733f85cebf3c857682e269e1

                SHA256

                b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53

                SHA512

                ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

              • C:\Users\Admin\AppData\Local\Temp\ub4.0.exe

                Filesize

                266KB

                MD5

                1954813e53d25192a654f79c81cbb6c1

                SHA1

                e6822c94d30034e52195bc056736c2f4c845f8de

                SHA256

                c0cd2ac66497b0a78b7ed11173970d907c16a71449694a0abb9649552e9fa1e0

                SHA512

                ceab399a5168079c0f2ae5a42fb16483f1f9203b519d9919946c3517e9a08f1c9e7a53024a5c8fe043cf8a8f27fd7c8ffd79469a0bfa589a508cad6aadc36b4c

              • C:\Users\Admin\AppData\Local\Temp\ub4.1.exe

                Filesize

                4.6MB

                MD5

                397926927bca55be4a77839b1c44de6e

                SHA1

                e10f3434ef3021c399dbba047832f02b3c898dbd

                SHA256

                4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

                SHA512

                cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

              • memory/400-1-0x0000000000B20000-0x0000000000C20000-memory.dmp

                Filesize

                1024KB

              • memory/400-79-0x0000000000400000-0x0000000000B10000-memory.dmp

                Filesize

                7.1MB

              • memory/400-3-0x0000000000400000-0x0000000000B10000-memory.dmp

                Filesize

                7.1MB

              • memory/400-2-0x0000000002870000-0x00000000028DE000-memory.dmp

                Filesize

                440KB

              • memory/3188-15-0x0000000000400000-0x0000000000AEC000-memory.dmp

                Filesize

                6.9MB

              • memory/3188-16-0x0000000061E00000-0x0000000061EF3000-memory.dmp

                Filesize

                972KB

              • memory/3188-139-0x0000000000400000-0x0000000000AEC000-memory.dmp

                Filesize

                6.9MB

              • memory/3188-14-0x0000000002720000-0x0000000002747000-memory.dmp

                Filesize

                156KB

              • memory/3188-13-0x0000000000BB0000-0x0000000000CB0000-memory.dmp

                Filesize

                1024KB

              • memory/3188-126-0x0000000000400000-0x0000000000AEC000-memory.dmp

                Filesize

                6.9MB

              • memory/3188-140-0x0000000000BB0000-0x0000000000CB0000-memory.dmp

                Filesize

                1024KB

              • memory/3828-167-0x0000018123D00000-0x0000018123D0C000-memory.dmp

                Filesize

                48KB

              • memory/3828-175-0x00000181252D0000-0x0000018125346000-memory.dmp

                Filesize

                472KB

              • memory/3828-204-0x0000018109C30000-0x0000018109C40000-memory.dmp

                Filesize

                64KB

              • memory/3828-203-0x0000018109C30000-0x0000018109C40000-memory.dmp

                Filesize

                64KB

              • memory/3828-202-0x0000018109C30000-0x0000018109C40000-memory.dmp

                Filesize

                64KB

              • memory/3828-201-0x0000018109C30000-0x0000018109C40000-memory.dmp

                Filesize

                64KB

              • memory/3828-200-0x0000018109C30000-0x0000018109C40000-memory.dmp

                Filesize

                64KB

              • memory/3828-199-0x00007FFA634E0000-0x00007FFA63FA1000-memory.dmp

                Filesize

                10.8MB

              • memory/3828-162-0x00007FFA634E0000-0x00007FFA63FA1000-memory.dmp

                Filesize

                10.8MB

              • memory/3828-163-0x0000018105EB0000-0x00000181097A8000-memory.dmp

                Filesize

                57.0MB

              • memory/3828-164-0x0000018109C30000-0x0000018109C40000-memory.dmp

                Filesize

                64KB

              • memory/3828-165-0x0000018124EE0000-0x0000018124FF0000-memory.dmp

                Filesize

                1.1MB

              • memory/3828-166-0x0000018109C20000-0x0000018109C30000-memory.dmp

                Filesize

                64KB

              • memory/3828-197-0x000001812A650000-0x000001812A66E000-memory.dmp

                Filesize

                120KB

              • memory/3828-168-0x0000018109C50000-0x0000018109C64000-memory.dmp

                Filesize

                80KB

              • memory/3828-169-0x0000018123D70000-0x0000018123D94000-memory.dmp

                Filesize

                144KB

              • memory/3828-170-0x0000018123DA0000-0x0000018123DAA000-memory.dmp

                Filesize

                40KB

              • memory/3828-171-0x0000018124D20000-0x0000018124D4A000-memory.dmp

                Filesize

                168KB

              • memory/3828-172-0x0000018125130000-0x00000181251E2000-memory.dmp

                Filesize

                712KB

              • memory/3828-174-0x00000181251F0000-0x0000018125252000-memory.dmp

                Filesize

                392KB

              • memory/3828-173-0x0000018124D50000-0x0000018124DCA000-memory.dmp

                Filesize

                488KB

              • memory/3828-196-0x000001812A620000-0x000001812A642000-memory.dmp

                Filesize

                136KB

              • memory/3828-176-0x0000018124DD0000-0x0000018124DDA000-memory.dmp

                Filesize

                40KB

              • memory/3828-180-0x0000018125350000-0x0000018125650000-memory.dmp

                Filesize

                3.0MB

              • memory/3828-183-0x0000018129D40000-0x0000018129D48000-memory.dmp

                Filesize

                32KB

              • memory/3828-182-0x0000018109C30000-0x0000018109C40000-memory.dmp

                Filesize

                64KB

              • memory/3828-184-0x0000018109C30000-0x0000018109C40000-memory.dmp

                Filesize

                64KB

              • memory/3828-185-0x0000018109C30000-0x0000018109C40000-memory.dmp

                Filesize

                64KB

              • memory/3828-187-0x0000018129650000-0x000001812965E000-memory.dmp

                Filesize

                56KB

              • memory/3828-186-0x0000018129680000-0x00000181296B8000-memory.dmp

                Filesize

                224KB

              • memory/3828-188-0x000001812A7E0000-0x000001812A7EA000-memory.dmp

                Filesize

                40KB

              • memory/3828-189-0x000001812A560000-0x000001812A582000-memory.dmp

                Filesize

                136KB

              • memory/3828-190-0x000001812AD20000-0x000001812B248000-memory.dmp

                Filesize

                5.2MB

              • memory/3828-193-0x000001812A5D0000-0x000001812A620000-memory.dmp

                Filesize

                320KB

              • memory/3828-194-0x000001812A580000-0x000001812A58C000-memory.dmp

                Filesize

                48KB

              • memory/3828-195-0x0000018109C30000-0x0000018109C40000-memory.dmp

                Filesize

                64KB

              • memory/4736-146-0x0000000071510000-0x0000000071CC0000-memory.dmp

                Filesize

                7.7MB

              • memory/4736-143-0x00000000054B0000-0x00000000054C0000-memory.dmp

                Filesize

                64KB

              • memory/4736-142-0x0000000071510000-0x0000000071CC0000-memory.dmp

                Filesize

                7.7MB

              • memory/4736-141-0x0000000000AC0000-0x0000000000AE0000-memory.dmp

                Filesize

                128KB

              • memory/4956-131-0x0000000000400000-0x00000000008AD000-memory.dmp

                Filesize

                4.7MB

              • memory/4956-71-0x00000000027B0000-0x00000000027B1000-memory.dmp

                Filesize

                4KB

              • memory/4956-160-0x00000000027B0000-0x00000000027B1000-memory.dmp

                Filesize

                4KB

              • memory/4956-159-0x0000000000400000-0x00000000008AD000-memory.dmp

                Filesize

                4.7MB