Analysis

  • max time kernel
    131s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-05-2024 00:22

General

  • Target

    6d55ceb63d5c42b83b950810b2d32965ffe698af5ffc84f695ee16ac29e4ff13.exe

  • Size

    387KB

  • MD5

    5fdf9311309c4d0ccfd96f81cc423221

  • SHA1

    552b94b6bd496a9ed2ce32957b51c20972e22211

  • SHA256

    6d55ceb63d5c42b83b950810b2d32965ffe698af5ffc84f695ee16ac29e4ff13

  • SHA512

    3bc70e7a5e2cfc18ab687ae607af853f46dee55bd4101198e2c508386e4d4fa6a34a55a6650e3507e7e697aea49c421b2fbb0a487d09df79db52ba20adf88cce

  • SSDEEP

    6144:JzP+6ZWEAS2YtQTTtNLiamb2gWwfGtUyeWPwj7Z9o4T9o4:JzP+6sjS3EjLKbdGtqfjC4

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 38 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\6d55ceb63d5c42b83b950810b2d32965ffe698af5ffc84f695ee16ac29e4ff13.exe
    "C:\Users\Admin\AppData\Local\Temp\6d55ceb63d5c42b83b950810b2d32965ffe698af5ffc84f695ee16ac29e4ff13.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2176
    • C:\Users\Admin\AppData\Local\Temp\u1og.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1og.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1596
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1596 -s 2324
        3⤵
        • Program crash
        PID:3344
    • C:\Users\Admin\AppData\Local\Temp\u1og.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u1og.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:1872
      • 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:4988
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2176 -s 1560
      2⤵
      • Program crash
      PID:1996
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2176 -ip 2176
    1⤵
      PID:744
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=3528,i,6166776566165096562,4582328833313060853,262144 --variations-seed-version --mojo-platform-channel-handle=3228 /prefetch:3
      1⤵
        PID:4480
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4212,i,6166776566165096562,4582328833313060853,262144 --variations-seed-version --mojo-platform-channel-handle=3524 /prefetch:8
        1⤵
          PID:4004
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1596 -ip 1596
          1⤵
            PID:2652

          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\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

            Filesize

            2B

            MD5

            d751713988987e9331980363e24189ce

            SHA1

            97d170e1550eee4afc0af065b78cda302a97674c

            SHA256

            4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

            SHA512

            b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

            Filesize

            40B

            MD5

            20d4b8fa017a12a108c87f540836e250

            SHA1

            1ac617fac131262b6d3ce1f52f5907e31d5f6f00

            SHA256

            6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

            SHA512

            507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

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

            Filesize

            3KB

            MD5

            e86748907351dbf213da8ba0093ac3b3

            SHA1

            cf97d46eedd729c82b2a06f669bd4d4198096d90

            SHA256

            e15784017133c7386f20ca899c9ab47acad6ec27bafebb586844b9b577e802f3

            SHA512

            af6475ccecb2e5d0178e47fba643b8b1a75092f6c39a10c8fcb302ab7e41a75e61974ab913a0d406ee97742962bd0bd7ba34c8c3abd985fd6efca467d0729542

          • C:\Users\Admin\AppData\Local\Temp\u1og.0.exe

            Filesize

            245KB

            MD5

            dd87d2cb25ca0057e220c143dd4b628e

            SHA1

            48238804ea2bee1cb0cf1e1c946a12bfc1265a15

            SHA256

            e07d3383a78b7b05cd27cf2f569c6e93026e9f40dff4ccb8ec81efafa6b2b23f

            SHA512

            bc7a14eb4b49df3f99028b1ae6dadf6bbca205d564c13c7dc2d05641a9e0d06558eb0bf67aaf51cf5c9c70c9963fe6265755259dae8e643484b0124796f57ff3

          • C:\Users\Admin\AppData\Local\Temp\u1og.1.exe

            Filesize

            4.6MB

            MD5

            397926927bca55be4a77839b1c44de6e

            SHA1

            e10f3434ef3021c399dbba047832f02b3c898dbd

            SHA256

            4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

            SHA512

            cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

          • memory/1596-34-0x0000000061E00000-0x0000000061EF3000-memory.dmp

            Filesize

            972KB

          • memory/1596-97-0x0000000000400000-0x0000000002579000-memory.dmp

            Filesize

            33.5MB

          • memory/1596-180-0x0000000000400000-0x0000000002579000-memory.dmp

            Filesize

            33.5MB

          • memory/1872-98-0x0000000000400000-0x00000000008AD000-memory.dmp

            Filesize

            4.7MB

          • memory/1872-115-0x0000000000400000-0x00000000008AD000-memory.dmp

            Filesize

            4.7MB

          • memory/2176-27-0x0000000000400000-0x000000000259D000-memory.dmp

            Filesize

            33.6MB

          • memory/2176-28-0x0000000000400000-0x000000000046F000-memory.dmp

            Filesize

            444KB

          • memory/2176-2-0x00000000041C0000-0x000000000422C000-memory.dmp

            Filesize

            432KB

          • memory/2176-1-0x00000000026A0000-0x00000000027A0000-memory.dmp

            Filesize

            1024KB

          • memory/2176-3-0x0000000000400000-0x000000000046F000-memory.dmp

            Filesize

            444KB

          • memory/4988-122-0x000002022AC10000-0x000002022AC1A000-memory.dmp

            Filesize

            40KB

          • memory/4988-135-0x000002024A2C0000-0x000002024A2CE000-memory.dmp

            Filesize

            56KB

          • memory/4988-120-0x000002022AB60000-0x000002022AB74000-memory.dmp

            Filesize

            80KB

          • memory/4988-123-0x0000020245E00000-0x0000020245E2A000-memory.dmp

            Filesize

            168KB

          • memory/4988-124-0x0000020245E30000-0x0000020245EE2000-memory.dmp

            Filesize

            712KB

          • memory/4988-125-0x0000020245F30000-0x0000020245F80000-memory.dmp

            Filesize

            320KB

          • memory/4988-126-0x0000020245F80000-0x0000020245FA2000-memory.dmp

            Filesize

            136KB

          • memory/4988-127-0x000002022AC20000-0x000002022AC2A000-memory.dmp

            Filesize

            40KB

          • memory/4988-131-0x0000020245FB0000-0x00000202462B0000-memory.dmp

            Filesize

            3.0MB

          • memory/4988-133-0x000002024A9B0000-0x000002024A9B8000-memory.dmp

            Filesize

            32KB

          • memory/4988-134-0x000002024A2F0000-0x000002024A328000-memory.dmp

            Filesize

            224KB

          • memory/4988-121-0x000002022ABF0000-0x000002022AC14000-memory.dmp

            Filesize

            144KB

          • memory/4988-136-0x000002024A2E0000-0x000002024A2E8000-memory.dmp

            Filesize

            32KB

          • memory/4988-137-0x000002024B460000-0x000002024B46A000-memory.dmp

            Filesize

            40KB

          • memory/4988-138-0x000002024B480000-0x000002024B4E2000-memory.dmp

            Filesize

            392KB

          • memory/4988-139-0x000002024B4E0000-0x000002024B502000-memory.dmp

            Filesize

            136KB

          • memory/4988-141-0x000002024BA30000-0x000002024BF58000-memory.dmp

            Filesize

            5.2MB

          • memory/4988-144-0x000002024B1E0000-0x000002024B1EC000-memory.dmp

            Filesize

            48KB

          • memory/4988-145-0x000002024B2C0000-0x000002024B336000-memory.dmp

            Filesize

            472KB

          • memory/4988-119-0x000002022ABA0000-0x000002022ABAC000-memory.dmp

            Filesize

            48KB

          • memory/4988-118-0x0000020229290000-0x00000202292A0000-memory.dmp

            Filesize

            64KB

          • memory/4988-117-0x0000020245BB0000-0x0000020245CBA000-memory.dmp

            Filesize

            1.0MB

          • memory/4988-178-0x00000202462D0000-0x00000202462EE000-memory.dmp

            Filesize

            120KB

          • memory/4988-116-0x00000202255B0000-0x0000020228DE4000-memory.dmp

            Filesize

            56.2MB