Analysis

  • max time kernel
    127s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/04/2024, 12:30

General

  • Target

    b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08.exe

  • Size

    430KB

  • MD5

    4c8bd14a837cba31f8687cff42259fa7

  • SHA1

    029dc10bc7e485c13053cf375df7bdaad65b6149

  • SHA256

    b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08

  • SHA512

    6bb08d475a962d9d174383f25d54bbe3827d9eda42802adcc7dbe355da6b4464d8d96e004ef516f9b7f76083b50c4bef5b0adcc707f4df8ff37f66b7862735f6

  • SSDEEP

    12288:9RZOzGbjLt3GCzB1CNFq0Q2rPxa5Zfxteb:9Z3GCzB1aq0Q8a5BPeb

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 2 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\b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08.exe
    "C:\Users\Admin\AppData\Local\Temp\b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4020
    • C:\Users\Admin\AppData\Local\Temp\u33o.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u33o.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:3616
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\JJDBFCAEBF.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2936
        • C:\Users\Admin\AppData\Local\Temp\JJDBFCAEBF.exe
          "C:\Users\Admin\AppData\Local\Temp\JJDBFCAEBF.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:2276
          • 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\JJDBFCAEBF.exe
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2884
            • C:\Windows\SysWOW64\PING.EXE
              ping 2.2.2.2 -n 1 -w 3000
              6⤵
              • Runs ping.exe
              PID:2284
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3616 -s 2328
        3⤵
        • Program crash
        PID:432
    • C:\Users\Admin\AppData\Local\Temp\u33o.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u33o.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:2368
      • 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:4528
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 860
      2⤵
      • Program crash
      PID:4908
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4020 -ip 4020
    1⤵
      PID:1944
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3616 -ip 3616
      1⤵
        PID:4476

      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\JJDBFCAEBF.exe

              Filesize

              106KB

              MD5

              fe380780b5c35bd6d54541791151c2be

              SHA1

              7fe3a583cf91474c733f85cebf3c857682e269e1

              SHA256

              b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53

              SHA512

              ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

            • C:\Users\Admin\AppData\Local\Temp\u33o.0.exe

              Filesize

              289KB

              MD5

              9105a03d2ead89d612c53f1dc322eb9e

              SHA1

              af3d72c0f399ba16b678910e21eb04e8e6122bee

              SHA256

              c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7

              SHA512

              4dd290c0ce5fd4414600f3c869a6ee6fba2c7b8ec856d6aed0dffb17253eb0c37b4945d2c5881d1fc40547c8f1b1ef22e63fce229ebfc19022e44b8ee87b2fcf

            • C:\Users\Admin\AppData\Local\Temp\u33o.1.exe

              Filesize

              4.6MB

              MD5

              397926927bca55be4a77839b1c44de6e

              SHA1

              e10f3434ef3021c399dbba047832f02b3c898dbd

              SHA256

              4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

              SHA512

              cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

            • memory/2276-199-0x0000000000920000-0x0000000000940000-memory.dmp

              Filesize

              128KB

            • memory/2276-200-0x0000000071EB0000-0x0000000072660000-memory.dmp

              Filesize

              7.7MB

            • memory/2276-201-0x00000000052D0000-0x00000000052E0000-memory.dmp

              Filesize

              64KB

            • memory/2276-205-0x0000000071EB0000-0x0000000072660000-memory.dmp

              Filesize

              7.7MB

            • memory/2368-127-0x0000000000400000-0x00000000008AD000-memory.dmp

              Filesize

              4.7MB

            • memory/2368-139-0x0000000000400000-0x00000000008AD000-memory.dmp

              Filesize

              4.7MB

            • memory/2368-26-0x0000000000C00000-0x0000000000C01000-memory.dmp

              Filesize

              4KB

            • memory/3616-27-0x0000000061E00000-0x0000000061EF3000-memory.dmp

              Filesize

              972KB

            • memory/3616-122-0x0000000000400000-0x0000000000866000-memory.dmp

              Filesize

              4.4MB

            • memory/3616-142-0x00000000009E0000-0x0000000000AE0000-memory.dmp

              Filesize

              1024KB

            • memory/3616-143-0x0000000000400000-0x0000000000866000-memory.dmp

              Filesize

              4.4MB

            • memory/3616-15-0x0000000000400000-0x0000000000866000-memory.dmp

              Filesize

              4.4MB

            • memory/3616-198-0x0000000000400000-0x0000000000866000-memory.dmp

              Filesize

              4.4MB

            • memory/3616-14-0x0000000002480000-0x00000000024A7000-memory.dmp

              Filesize

              156KB

            • memory/3616-13-0x00000000009E0000-0x0000000000AE0000-memory.dmp

              Filesize

              1024KB

            • memory/4020-64-0x0000000000400000-0x0000000000889000-memory.dmp

              Filesize

              4.5MB

            • memory/4020-3-0x0000000000400000-0x0000000000889000-memory.dmp

              Filesize

              4.5MB

            • memory/4020-2-0x00000000024F0000-0x000000000255C000-memory.dmp

              Filesize

              432KB

            • memory/4020-1-0x0000000000B50000-0x0000000000C50000-memory.dmp

              Filesize

              1024KB

            • memory/4528-154-0x00000215EC0F0000-0x00000215EC152000-memory.dmp

              Filesize

              392KB

            • memory/4528-173-0x00000215EBBD0000-0x00000215EBBE0000-memory.dmp

              Filesize

              64KB

            • memory/4528-152-0x00000215EC030000-0x00000215EC0E2000-memory.dmp

              Filesize

              712KB

            • memory/4528-151-0x00000215EBB10000-0x00000215EBB3A000-memory.dmp

              Filesize

              168KB

            • memory/4528-153-0x00000215EBB40000-0x00000215EBBBA000-memory.dmp

              Filesize

              488KB

            • memory/4528-149-0x00000215EA4B0000-0x00000215EA4D4000-memory.dmp

              Filesize

              144KB

            • memory/4528-155-0x00000215EC1D0000-0x00000215EC246000-memory.dmp

              Filesize

              472KB

            • memory/4528-156-0x00000215EBB00000-0x00000215EBB0A000-memory.dmp

              Filesize

              40KB

            • memory/4528-160-0x00000215EC250000-0x00000215EC550000-memory.dmp

              Filesize

              3.0MB

            • memory/4528-164-0x00000215EBBD0000-0x00000215EBBE0000-memory.dmp

              Filesize

              64KB

            • memory/4528-163-0x00000215F0C40000-0x00000215F0C48000-memory.dmp

              Filesize

              32KB

            • memory/4528-165-0x00000215EBBD0000-0x00000215EBBE0000-memory.dmp

              Filesize

              64KB

            • memory/4528-166-0x00000215F0580000-0x00000215F05B8000-memory.dmp

              Filesize

              224KB

            • memory/4528-167-0x00000215F0550000-0x00000215F055E000-memory.dmp

              Filesize

              56KB

            • memory/4528-168-0x00000215F16E0000-0x00000215F16EA000-memory.dmp

              Filesize

              40KB

            • memory/4528-169-0x00000215F16F0000-0x00000215F1712000-memory.dmp

              Filesize

              136KB

            • memory/4528-170-0x00000215F1C40000-0x00000215F2168000-memory.dmp

              Filesize

              5.2MB

            • memory/4528-150-0x00000215EBAF0000-0x00000215EBAFA000-memory.dmp

              Filesize

              40KB

            • memory/4528-174-0x00000215F14B0000-0x00000215F1500000-memory.dmp

              Filesize

              320KB

            • memory/4528-175-0x00000215F1460000-0x00000215F146C000-memory.dmp

              Filesize

              48KB

            • memory/4528-176-0x00000215F1500000-0x00000215F1522000-memory.dmp

              Filesize

              136KB

            • memory/4528-177-0x00000215F1530000-0x00000215F154E000-memory.dmp

              Filesize

              120KB

            • memory/4528-148-0x00000215E8CB0000-0x00000215E8CC4000-memory.dmp

              Filesize

              80KB

            • memory/4528-147-0x00000215E8CC0000-0x00000215E8CCC000-memory.dmp

              Filesize

              48KB

            • memory/4528-146-0x00000215E8A90000-0x00000215E8AA0000-memory.dmp

              Filesize

              64KB

            • memory/4528-145-0x00000215EBDE0000-0x00000215EBEF0000-memory.dmp

              Filesize

              1.1MB

            • memory/4528-144-0x00000215EBBD0000-0x00000215EBBE0000-memory.dmp

              Filesize

              64KB

            • memory/4528-141-0x00000215E4DB0000-0x00000215E86A8000-memory.dmp

              Filesize

              57.0MB

            • memory/4528-140-0x00007FFDA3190000-0x00007FFDA3C51000-memory.dmp

              Filesize

              10.8MB

            • memory/4528-206-0x00007FFDA3190000-0x00007FFDA3C51000-memory.dmp

              Filesize

              10.8MB

            • memory/4528-207-0x00000215EBBD0000-0x00000215EBBE0000-memory.dmp

              Filesize

              64KB

            • memory/4528-208-0x00000215EBBD0000-0x00000215EBBE0000-memory.dmp

              Filesize

              64KB

            • memory/4528-209-0x00000215EBBD0000-0x00000215EBBE0000-memory.dmp

              Filesize

              64KB

            • memory/4528-210-0x00000215EBBD0000-0x00000215EBBE0000-memory.dmp

              Filesize

              64KB

            • memory/4528-211-0x00000215EBBD0000-0x00000215EBBE0000-memory.dmp

              Filesize

              64KB