Analysis

  • max time kernel
    146s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-05-2024 21:46

General

  • Target

    ff3351d302b3dee394fa17d8e7da32ea4933280cf9e3231c8279e00f19379c66.exe

  • Size

    417KB

  • MD5

    d3df6d7b737c64e25cd05600c78a13fc

  • SHA1

    9704ba0b5b12932ebca3ef1c2be79ddc359ffb9a

  • SHA256

    ff3351d302b3dee394fa17d8e7da32ea4933280cf9e3231c8279e00f19379c66

  • SHA512

    5ac887e8fe43bc5e90863fa3c83c0531f8a6a646d98858f2cf29491d63cc3271cc92918f25cda3bf7e0080d1f66901f761ee5dacbac22af2f63580265c35064b

  • SSDEEP

    6144:GlYyAMIn4ySxIRsKZ5deRy4Y/mzUemFz1ACcWuah07P/dhW90P:GlYyApn4hxIRX5deOmzUFBAC5eP/SaP

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
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • 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 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.

  • Suspicious behavior: EnumeratesProcesses 28 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\ff3351d302b3dee394fa17d8e7da32ea4933280cf9e3231c8279e00f19379c66.exe
    "C:\Users\Admin\AppData\Local\Temp\ff3351d302b3dee394fa17d8e7da32ea4933280cf9e3231c8279e00f19379c66.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1744
    • C:\Users\Admin\AppData\Local\Temp\u1cg.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1cg.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3720
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3720 -s 2028
        3⤵
        • Program crash
        PID:1256
    • C:\Users\Admin\AppData\Local\Temp\u1cg.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u1cg.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:1804
      • 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:2556
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1744 -s 1520
      2⤵
      • Program crash
      PID:4532
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1744 -ip 1744
    1⤵
      PID:2752
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3720 -ip 3720
      1⤵
        PID:4872

      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\iolo\dm\ioloDMLog.txt

        Filesize

        3KB

        MD5

        5342a56bb8608758b32f1a866a8bea81

        SHA1

        dafda8fcd93614d0b4a8dec6c7a15239e191da00

        SHA256

        b809f1367eecaf970cee49e9edc301367869922fd976db18d2c50512be502fcb

        SHA512

        cf6b495d19935a17b63443c3a7331f7f9ea366a8737d37e49745b792664c94874eacfcea56b67e83c1f5515da2e9211405bfea250f527e7c7e02613f85b0656f

      • C:\Users\Admin\AppData\Local\Temp\u1cg.0.exe

        Filesize

        275KB

        MD5

        741f4fea03733d88a053a34f5f99f85f

        SHA1

        e7bece4b05fcd0df660ba0a043c3bd57dde078a3

        SHA256

        d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc

        SHA512

        371070b856d0377c8d09eef20166376b9ac6bdd58b976882ed81e2d84609fa54f896e896b8dfe7434eba399af0a8a32d6290523e466d55eb2651517049dcc298

      • C:\Users\Admin\AppData\Local\Temp\u1cg.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1744-29-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1744-28-0x0000000000400000-0x0000000002B26000-memory.dmp

        Filesize

        39.1MB

      • memory/1744-1-0x0000000002E60000-0x0000000002F60000-memory.dmp

        Filesize

        1024KB

      • memory/1744-9-0x0000000000400000-0x0000000002B26000-memory.dmp

        Filesize

        39.1MB

      • memory/1744-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1744-2-0x0000000002DC0000-0x0000000002E2C000-memory.dmp

        Filesize

        432KB

      • memory/1804-49-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/1804-97-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/1804-106-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2556-147-0x000001F7B0600000-0x000001F7B060A000-memory.dmp

        Filesize

        40KB

      • memory/2556-145-0x000001F7B0AF0000-0x000001F7B0B52000-memory.dmp

        Filesize

        392KB

      • memory/2556-167-0x000001F7B5EA0000-0x000001F7B5EBE000-memory.dmp

        Filesize

        120KB

      • memory/2556-166-0x000001F7B5F10000-0x000001F7B5F32000-memory.dmp

        Filesize

        136KB

      • memory/2556-132-0x000001F7B0770000-0x000001F7B0880000-memory.dmp

        Filesize

        1.1MB

      • memory/2556-137-0x000001F797AB0000-0x000001F797AC0000-memory.dmp

        Filesize

        64KB

      • memory/2556-138-0x000001F7B0450000-0x000001F7B045C000-memory.dmp

        Filesize

        48KB

      • memory/2556-139-0x000001F797B00000-0x000001F797B14000-memory.dmp

        Filesize

        80KB

      • memory/2556-140-0x000001F7B05C0000-0x000001F7B05E4000-memory.dmp

        Filesize

        144KB

      • memory/2556-141-0x000001F7B05F0000-0x000001F7B05FA000-memory.dmp

        Filesize

        40KB

      • memory/2556-142-0x000001F7B09C0000-0x000001F7B0A72000-memory.dmp

        Filesize

        712KB

      • memory/2556-143-0x000001F7B0610000-0x000001F7B063A000-memory.dmp

        Filesize

        168KB

      • memory/2556-144-0x000001F7B0A70000-0x000001F7B0AEA000-memory.dmp

        Filesize

        488KB

      • memory/2556-107-0x000001F792600000-0x000001F795EF8000-memory.dmp

        Filesize

        57.0MB

      • memory/2556-146-0x000001F7B0BD0000-0x000001F7B0C46000-memory.dmp

        Filesize

        472KB

      • memory/2556-164-0x000001F7B5EC0000-0x000001F7B5F10000-memory.dmp

        Filesize

        320KB

      • memory/2556-151-0x000001F7B0C50000-0x000001F7B0F50000-memory.dmp

        Filesize

        3.0MB

      • memory/2556-154-0x000001F7B5030000-0x000001F7B5038000-memory.dmp

        Filesize

        32KB

      • memory/2556-155-0x000001F7B4FB0000-0x000001F7B4FE8000-memory.dmp

        Filesize

        224KB

      • memory/2556-158-0x000001F7B60F0000-0x000001F7B6112000-memory.dmp

        Filesize

        136KB

      • memory/2556-157-0x000001F7B5E40000-0x000001F7B5E4A000-memory.dmp

        Filesize

        40KB

      • memory/2556-156-0x000001F7B4F80000-0x000001F7B4F8E000-memory.dmp

        Filesize

        56KB

      • memory/2556-160-0x000001F7B6640000-0x000001F7B6B68000-memory.dmp

        Filesize

        5.2MB

      • memory/2556-165-0x000001F7B5E50000-0x000001F7B5E5C000-memory.dmp

        Filesize

        48KB

      • memory/3720-161-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/3720-50-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/3720-51-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3720-78-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB