Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/04/2024, 00:30

General

  • Target

    d436b4e8a05055faa3305ed75bc0dec4f79402d0d7ef31e07883fd477498b3cb.exe

  • Size

    415KB

  • MD5

    4c0dc5941c1cc470e37442aa820f9dd8

  • SHA1

    6e04b61dee4a41fecc03524f4f0e0e893a0d5ece

  • SHA256

    d436b4e8a05055faa3305ed75bc0dec4f79402d0d7ef31e07883fd477498b3cb

  • SHA512

    5ae0f33def9abb44c1184ff5598c366bd58bce75a698468a12d386ffd5fa554faae3fde238dcaa2cea46e08fed777c24203781e782c04cf0ab7aa9119a0a1d90

  • SSDEEP

    6144:nFphGWg9GOLmEenm1GkAucLzpaR8gRQMGCtPvh1cGpBfHIY:FpRQcSGGckRDBPv7zHHIY

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 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.

  • 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\d436b4e8a05055faa3305ed75bc0dec4f79402d0d7ef31e07883fd477498b3cb.exe
    "C:\Users\Admin\AppData\Local\Temp\d436b4e8a05055faa3305ed75bc0dec4f79402d0d7ef31e07883fd477498b3cb.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Users\Admin\AppData\Local\Temp\u1yc.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1yc.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:448
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\KJDHCAFCGD.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2092
        • C:\Users\Admin\AppData\Local\Temp\KJDHCAFCGD.exe
          "C:\Users\Admin\AppData\Local\Temp\KJDHCAFCGD.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1588
          • 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\KJDHCAFCGD.exe
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4864
            • C:\Windows\SysWOW64\PING.EXE
              ping 2.2.2.2 -n 1 -w 3000
              6⤵
              • Runs ping.exe
              PID:4232
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 448 -s 2496
        3⤵
        • Program crash
        PID:4964
    • C:\Users\Admin\AppData\Local\Temp\u1yc.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u1yc.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:4024
      • 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:3684
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 448 -ip 448
    1⤵
      PID:1964

    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\KJDHCAFCGD.exe

            Filesize

            106KB

            MD5

            fe380780b5c35bd6d54541791151c2be

            SHA1

            7fe3a583cf91474c733f85cebf3c857682e269e1

            SHA256

            b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53

            SHA512

            ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

          • C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt

            Filesize

            2KB

            MD5

            b5207db502a1eda806366b11761684ea

            SHA1

            ab6c48e413beb80bcc3adda42f660d699ff6bf20

            SHA256

            49d6dab1159426b9828559ba7d68fcfc3ba41ff35056e8b17020a30a947d40a0

            SHA512

            9b9f6a0324049daade0f01e9dead7b376ad22c9de49fca3336b91b05f11f6785d09841113f6e9c93e109939896ae590d7b2ad4529091d309a52a3d87f0d38b66

          • C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt

            Filesize

            3KB

            MD5

            f54214a0870f898437d3cf73a002f1d1

            SHA1

            238e6c014fb5caa5a9baf98bb095d80df53771c4

            SHA256

            097282921485fd1c1ddeefccab9ae787ea7d51f8f2fdb246918dbbafdd82055e

            SHA512

            86a999db0d58a3befc6fda08976044973e7a0211c38c4d2600c6d6c6618f94a1ac51a58e2d0adf54144d3ab433c6ac1a23feb19094d3384945082567f744404b

          • C:\Users\Admin\AppData\Local\Temp\u1yc.0.exe

            Filesize

            273KB

            MD5

            7d94aad41d8930346ffdb5967eea4171

            SHA1

            4bb4649a8e73946e356dd6710d1a21cc3e3cdeba

            SHA256

            7d763bbd8f2c9e84c655e757000dc74dc0f2f9fe12b13bc6a1271288de4daf59

            SHA512

            32b88906f3caa345d2ccaae95be097944bfadca630d5bf4f5c717ebf7cd7acac9925361d3ec4db4fd8fa6bf86f898d4b7c86f8e7fdfdf74a65eb030be9fe8b74

          • C:\Users\Admin\AppData\Local\Temp\u1yc.1.exe

            Filesize

            4.6MB

            MD5

            397926927bca55be4a77839b1c44de6e

            SHA1

            e10f3434ef3021c399dbba047832f02b3c898dbd

            SHA256

            4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

            SHA512

            cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

          • memory/448-17-0x0000000061E00000-0x0000000061EF3000-memory.dmp

            Filesize

            972KB

          • memory/448-16-0x0000000000400000-0x000000000063B000-memory.dmp

            Filesize

            2.2MB

          • memory/448-15-0x0000000000780000-0x00000000007A7000-memory.dmp

            Filesize

            156KB

          • memory/448-13-0x00000000007D0000-0x00000000008D0000-memory.dmp

            Filesize

            1024KB

          • memory/448-117-0x0000000000400000-0x000000000063B000-memory.dmp

            Filesize

            2.2MB

          • memory/1588-131-0x00000000055A0000-0x00000000055B0000-memory.dmp

            Filesize

            64KB

          • memory/1588-122-0x00000000717E0000-0x0000000071F90000-memory.dmp

            Filesize

            7.7MB

          • memory/1588-121-0x0000000000900000-0x0000000000920000-memory.dmp

            Filesize

            128KB

          • memory/1588-142-0x00000000717E0000-0x0000000071F90000-memory.dmp

            Filesize

            7.7MB

          • memory/2532-14-0x0000000000400000-0x00000000004D4000-memory.dmp

            Filesize

            848KB

          • memory/2532-2-0x0000000002130000-0x000000000219C000-memory.dmp

            Filesize

            432KB

          • memory/2532-76-0x0000000002130000-0x000000000219C000-memory.dmp

            Filesize

            432KB

          • memory/2532-75-0x0000000000400000-0x00000000004D4000-memory.dmp

            Filesize

            848KB

          • memory/2532-3-0x0000000000400000-0x00000000004D4000-memory.dmp

            Filesize

            848KB

          • memory/2532-1-0x0000000000690000-0x0000000000790000-memory.dmp

            Filesize

            1024KB

          • memory/3684-161-0x000001CD01D30000-0x000001CD01D3C000-memory.dmp

            Filesize

            48KB

          • memory/3684-176-0x000001CD1A5B0000-0x000001CD1A5C0000-memory.dmp

            Filesize

            64KB

          • memory/3684-198-0x000001CD1A5B0000-0x000001CD1A5C0000-memory.dmp

            Filesize

            64KB

          • memory/3684-156-0x00007FFEAFCE0000-0x00007FFEB07A1000-memory.dmp

            Filesize

            10.8MB

          • memory/3684-157-0x000001CD7F990000-0x000001CD83288000-memory.dmp

            Filesize

            57.0MB

          • memory/3684-158-0x000001CD1A5B0000-0x000001CD1A5C0000-memory.dmp

            Filesize

            64KB

          • memory/3684-159-0x000001CD1A900000-0x000001CD1AA10000-memory.dmp

            Filesize

            1.1MB

          • memory/3684-197-0x000001CD1A5B0000-0x000001CD1A5C0000-memory.dmp

            Filesize

            64KB

          • memory/3684-160-0x000001CD003F0000-0x000001CD00400000-memory.dmp

            Filesize

            64KB

          • memory/3684-162-0x000001CD01CF0000-0x000001CD01D04000-memory.dmp

            Filesize

            80KB

          • memory/3684-163-0x000001CD1A5C0000-0x000001CD1A5E4000-memory.dmp

            Filesize

            144KB

          • memory/3684-164-0x000001CD1A5E0000-0x000001CD1A5EA000-memory.dmp

            Filesize

            40KB

          • memory/3684-166-0x000001CD1AB50000-0x000001CD1AC02000-memory.dmp

            Filesize

            712KB

          • memory/3684-165-0x000001CD1A740000-0x000001CD1A76A000-memory.dmp

            Filesize

            168KB

          • memory/3684-167-0x000001CD1A770000-0x000001CD1A7EA000-memory.dmp

            Filesize

            488KB

          • memory/3684-168-0x000001CD1AC00000-0x000001CD1AC62000-memory.dmp

            Filesize

            392KB

          • memory/3684-169-0x000001CD83310000-0x000001CD83386000-memory.dmp

            Filesize

            472KB

          • memory/3684-170-0x000001CD1A700000-0x000001CD1A70A000-memory.dmp

            Filesize

            40KB

          • memory/3684-174-0x000001CD1AC60000-0x000001CD1AF60000-memory.dmp

            Filesize

            3.0MB

          • memory/3684-196-0x000001CD1A5B0000-0x000001CD1A5C0000-memory.dmp

            Filesize

            64KB

          • memory/3684-179-0x000001CD1A5B0000-0x000001CD1A5C0000-memory.dmp

            Filesize

            64KB

          • memory/3684-178-0x000001CD832A0000-0x000001CD832A8000-memory.dmp

            Filesize

            32KB

          • memory/3684-177-0x000001CD1A5B0000-0x000001CD1A5C0000-memory.dmp

            Filesize

            64KB

          • memory/3684-180-0x000001CD83390000-0x000001CD833C8000-memory.dmp

            Filesize

            224KB

          • memory/3684-181-0x000001CD832B0000-0x000001CD832BE000-memory.dmp

            Filesize

            56KB

          • memory/3684-182-0x000001CD1F030000-0x000001CD1F03A000-memory.dmp

            Filesize

            40KB

          • memory/3684-183-0x000001CD1F040000-0x000001CD1F062000-memory.dmp

            Filesize

            136KB

          • memory/3684-184-0x000001CD203E0000-0x000001CD20908000-memory.dmp

            Filesize

            5.2MB

          • memory/3684-187-0x000001CD833D0000-0x000001CD83420000-memory.dmp

            Filesize

            320KB

          • memory/3684-189-0x000001CD1A5B0000-0x000001CD1A5C0000-memory.dmp

            Filesize

            64KB

          • memory/3684-188-0x000001CD1F060000-0x000001CD1F06C000-memory.dmp

            Filesize

            48KB

          • memory/3684-190-0x000001CD83420000-0x000001CD83442000-memory.dmp

            Filesize

            136KB

          • memory/3684-191-0x000001CD832E0000-0x000001CD832FE000-memory.dmp

            Filesize

            120KB

          • memory/3684-193-0x00007FFEAFCE0000-0x00007FFEB07A1000-memory.dmp

            Filesize

            10.8MB

          • memory/3684-194-0x000001CD1A5B0000-0x000001CD1A5C0000-memory.dmp

            Filesize

            64KB

          • memory/3684-195-0x000001CD1A5B0000-0x000001CD1A5C0000-memory.dmp

            Filesize

            64KB

          • memory/4024-152-0x0000000000400000-0x00000000008AD000-memory.dmp

            Filesize

            4.7MB

          • memory/4024-77-0x00000000026B0000-0x00000000026B1000-memory.dmp

            Filesize

            4KB

          • memory/4024-155-0x0000000000400000-0x00000000008AD000-memory.dmp

            Filesize

            4.7MB