Analysis

  • max time kernel
    125s
  • max time network
    127s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    06-05-2024 10:16

General

  • Target

    bd7df1cb2a16dac8bf9352a5345186e8ec9b1338aeac506003aed8f53d005eff.exe

  • Size

    417KB

  • MD5

    8559a8e41733cc6441febaf102bcef29

  • SHA1

    aa8a1256988c97242674fec0ef1fb1279830f06b

  • SHA256

    bd7df1cb2a16dac8bf9352a5345186e8ec9b1338aeac506003aed8f53d005eff

  • SHA512

    727fead6c7bff267bc18f80c61e2b14e1bc45a919b5a3444b1ee11906d8addb44a79ee548c3a528903df7b3c9dd188071c57b5de4864bfbe2ce3b33a49f39615

  • SSDEEP

    6144:d5pk6VtVbGU1sVOzp0f1eYVwIuI84glzNwiaTSLrqi3Vta5I:d5pjVLbX0ONzYarI0lzhaT+RVtMI

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.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
  • Executes dropped EXE 2 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.

  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bd7df1cb2a16dac8bf9352a5345186e8ec9b1338aeac506003aed8f53d005eff.exe
    "C:\Users\Admin\AppData\Local\Temp\bd7df1cb2a16dac8bf9352a5345186e8ec9b1338aeac506003aed8f53d005eff.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1528
    • C:\Users\Admin\AppData\Local\Temp\u16g.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u16g.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3264
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3264 -s 2444
        3⤵
        • Program crash
        PID:1308
    • C:\Users\Admin\AppData\Local\Temp\u16g.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u16g.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4784
      • 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:4772
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3264 -ip 3264
    1⤵
      PID:896

    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\u16g.0.exe

      Filesize

      274KB

      MD5

      7faacbf66f86efccce100cd447ecca62

      SHA1

      90f565110b0bbd2f086acaf6ef57fb13f4f7d86f

      SHA256

      c5400417da46366c8a498ed88d81f968fd504a2a704022dea1a7bdfc0cdc0677

      SHA512

      16c9d4c07ff3dbf0850dafdaa67381086b6ba40644bc153094d58ec641379f126bc1877832d4ab0efadd3f723dd6a89a5c33c3239d5033e150880105075d470a

    • C:\Users\Admin\AppData\Local\Temp\u16g.1.exe

      Filesize

      4.6MB

      MD5

      397926927bca55be4a77839b1c44de6e

      SHA1

      e10f3434ef3021c399dbba047832f02b3c898dbd

      SHA256

      4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

      SHA512

      cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

    • memory/1528-55-0x0000000000400000-0x0000000001A32000-memory.dmp

      Filesize

      22.2MB

    • memory/1528-62-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/1528-1-0x0000000001C30000-0x0000000001D30000-memory.dmp

      Filesize

      1024KB

    • memory/1528-3-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/1528-2-0x00000000037A0000-0x000000000380C000-memory.dmp

      Filesize

      432KB

    • memory/3264-19-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/3264-17-0x0000000000400000-0x0000000001A0F000-memory.dmp

      Filesize

      22.1MB

    • memory/3264-16-0x0000000000400000-0x0000000001A0F000-memory.dmp

      Filesize

      22.1MB

    • memory/3264-128-0x0000000000400000-0x0000000001A0F000-memory.dmp

      Filesize

      22.1MB

    • memory/4772-146-0x0000022C6D450000-0x0000022C6D464000-memory.dmp

      Filesize

      80KB

    • memory/4772-153-0x0000022C6DA10000-0x0000022C6DA86000-memory.dmp

      Filesize

      472KB

    • memory/4772-142-0x0000022C4F4C0000-0x0000022C52DB8000-memory.dmp

      Filesize

      57.0MB

    • memory/4772-143-0x0000022C6D560000-0x0000022C6D670000-memory.dmp

      Filesize

      1.1MB

    • memory/4772-145-0x0000022C6D460000-0x0000022C6D46C000-memory.dmp

      Filesize

      48KB

    • memory/4772-144-0x0000022C6D440000-0x0000022C6D450000-memory.dmp

      Filesize

      64KB

    • memory/4772-171-0x0000022C725B0000-0x0000022C725CE000-memory.dmp

      Filesize

      120KB

    • memory/4772-147-0x0000022C6D4C0000-0x0000022C6D4E4000-memory.dmp

      Filesize

      144KB

    • memory/4772-149-0x0000022C6D7D0000-0x0000022C6D882000-memory.dmp

      Filesize

      712KB

    • memory/4772-148-0x0000022C6D4F0000-0x0000022C6D4FA000-memory.dmp

      Filesize

      40KB

    • memory/4772-152-0x0000022C6D930000-0x0000022C6D992000-memory.dmp

      Filesize

      392KB

    • memory/4772-151-0x0000022C6D8B0000-0x0000022C6D92A000-memory.dmp

      Filesize

      488KB

    • memory/4772-150-0x0000022C6D880000-0x0000022C6D8AA000-memory.dmp

      Filesize

      168KB

    • memory/4772-170-0x0000022C72580000-0x0000022C725A2000-memory.dmp

      Filesize

      136KB

    • memory/4772-158-0x0000022C6DA90000-0x0000022C6DD90000-memory.dmp

      Filesize

      3.0MB

    • memory/4772-154-0x0000022C6D540000-0x0000022C6D54A000-memory.dmp

      Filesize

      40KB

    • memory/4772-160-0x0000022C724B0000-0x0000022C724B8000-memory.dmp

      Filesize

      32KB

    • memory/4772-161-0x0000022C71DF0000-0x0000022C71E28000-memory.dmp

      Filesize

      224KB

    • memory/4772-162-0x0000022C71DC0000-0x0000022C71DCE000-memory.dmp

      Filesize

      56KB

    • memory/4772-164-0x0000022C72760000-0x0000022C72782000-memory.dmp

      Filesize

      136KB

    • memory/4772-163-0x0000022C71E60000-0x0000022C71E6A000-memory.dmp

      Filesize

      40KB

    • memory/4772-165-0x0000022C72CB0000-0x0000022C731D8000-memory.dmp

      Filesize

      5.2MB

    • memory/4772-168-0x0000022C72530000-0x0000022C72580000-memory.dmp

      Filesize

      320KB

    • memory/4772-169-0x0000022C724E0000-0x0000022C724EC000-memory.dmp

      Filesize

      48KB

    • memory/4784-141-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB

    • memory/4784-129-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB