Analysis

  • max time kernel
    139s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-04-2024 18:01

General

  • Target

    5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089.exe

  • Size

    490KB

  • MD5

    38e2874247fff6b221c5a40f32934730

  • SHA1

    a615ce7f6bfeb39a9fd094c570be43e0d7fdc401

  • SHA256

    5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089

  • SHA512

    8c1be9e1e6badace316617c10d1949ecf29e1067d77984f6a5329813b76ce8f6b7fbd73c7d5a0a83ed12131f62804ccd1771e23a47c0a90d18b5770951bf52a5

  • SSDEEP

    6144:bgnzgxVJGo/KFIc4prUaKWv43AUoWwWHgyxSArUUeZN3EUTtwAMQaMWuIrMQVL99:EMxVJbyivpr2eUoWNHgQr2njkQorbf/l

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 38 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\5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089.exe
    "C:\Users\Admin\AppData\Local\Temp\5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4440
    • C:\Users\Admin\AppData\Local\Temp\u3fc.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3fc.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:4544
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\BKKFHIEGDH.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4328
        • C:\Users\Admin\AppData\Local\Temp\BKKFHIEGDH.exe
          "C:\Users\Admin\AppData\Local\Temp\BKKFHIEGDH.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:4580
          • 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\BKKFHIEGDH.exe
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:3140
            • C:\Windows\SysWOW64\PING.EXE
              ping 2.2.2.2 -n 1 -w 3000
              6⤵
              • Runs ping.exe
              PID:912
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 2564
        3⤵
        • Program crash
        PID:3780
    • C:\Users\Admin\AppData\Local\Temp\u3fc.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3fc.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:3012
      • 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:2152
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4440 -s 1600
      2⤵
      • Program crash
      PID:2744
  • 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=4380,i,16039099669790638797,10751269459111429885,262144 --variations-seed-version --mojo-platform-channel-handle=4412 /prefetch:8
    1⤵
      PID:4808
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4440 -ip 4440
      1⤵
        PID:4388
      • 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=3728,i,16039099669790638797,10751269459111429885,262144 --variations-seed-version --mojo-platform-channel-handle=3204 /prefetch:3
        1⤵
          PID:2552
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4544 -ip 4544
          1⤵
            PID:4300

          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\BKKFHIEGDH.exe

            Filesize

            106KB

            MD5

            fe380780b5c35bd6d54541791151c2be

            SHA1

            7fe3a583cf91474c733f85cebf3c857682e269e1

            SHA256

            b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53

            SHA512

            ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

          • C:\Users\Admin\AppData\Local\Temp\u3fc.0.exe

            Filesize

            349KB

            MD5

            5ea309941d118b35358391111a722ed7

            SHA1

            1a0bc1f44e188a6983c7a0f52b76eb1070227264

            SHA256

            577d876ca52a4fe17525dba9fc3875cf2bb2c6f6de4d9dd0103d052a4790bf8f

            SHA512

            7071dff7bf8d1336ef97ead19ccf961e5c05e36ea9f4c724d1f4f016a66a4253043f93c96adcac3dd5b508d437428fe94e918cb7233dd1b2d170aac26a7fd731

          • C:\Users\Admin\AppData\Local\Temp\u3fc.1.exe

            Filesize

            4.6MB

            MD5

            397926927bca55be4a77839b1c44de6e

            SHA1

            e10f3434ef3021c399dbba047832f02b3c898dbd

            SHA256

            4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

            SHA512

            cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

          • memory/2152-162-0x00000119D4E10000-0x00000119D4E72000-memory.dmp

            Filesize

            392KB

          • memory/2152-168-0x00000119D4F70000-0x00000119D5270000-memory.dmp

            Filesize

            3.0MB

          • memory/2152-197-0x00000119BB070000-0x00000119BB080000-memory.dmp

            Filesize

            64KB

          • memory/2152-196-0x00000119BB070000-0x00000119BB080000-memory.dmp

            Filesize

            64KB

          • memory/2152-195-0x00000119BB070000-0x00000119BB080000-memory.dmp

            Filesize

            64KB

          • memory/2152-194-0x00000119BB070000-0x00000119BB080000-memory.dmp

            Filesize

            64KB

          • memory/2152-192-0x00007FFBAB920000-0x00007FFBAC3E1000-memory.dmp

            Filesize

            10.8MB

          • memory/2152-185-0x00000119DA240000-0x00000119DA25E000-memory.dmp

            Filesize

            120KB

          • memory/2152-184-0x00000119DA210000-0x00000119DA232000-memory.dmp

            Filesize

            136KB

          • memory/2152-183-0x00000119DA170000-0x00000119DA17C000-memory.dmp

            Filesize

            48KB

          • memory/2152-182-0x00000119DA1C0000-0x00000119DA210000-memory.dmp

            Filesize

            320KB

          • memory/2152-149-0x00007FFBAB920000-0x00007FFBAC3E1000-memory.dmp

            Filesize

            10.8MB

          • memory/2152-150-0x00000119B5AC0000-0x00000119B93B8000-memory.dmp

            Filesize

            57.0MB

          • memory/2152-179-0x00000119DA950000-0x00000119DAE78000-memory.dmp

            Filesize

            5.2MB

          • memory/2152-152-0x00000119BB070000-0x00000119BB080000-memory.dmp

            Filesize

            64KB

          • memory/2152-153-0x00000119D4A40000-0x00000119D4B50000-memory.dmp

            Filesize

            1.1MB

          • memory/2152-154-0x00000119BB1C0000-0x00000119BB1D0000-memory.dmp

            Filesize

            64KB

          • memory/2152-155-0x00000119D48A0000-0x00000119D48AC000-memory.dmp

            Filesize

            48KB

          • memory/2152-156-0x00000119D4890000-0x00000119D48A4000-memory.dmp

            Filesize

            80KB

          • memory/2152-157-0x00000119D4900000-0x00000119D4924000-memory.dmp

            Filesize

            144KB

          • memory/2152-158-0x00000119D4C90000-0x00000119D4C9A000-memory.dmp

            Filesize

            40KB

          • memory/2152-160-0x00000119D4CE0000-0x00000119D4D92000-memory.dmp

            Filesize

            712KB

          • memory/2152-159-0x00000119D4CB0000-0x00000119D4CDA000-memory.dmp

            Filesize

            168KB

          • memory/2152-161-0x00000119D4D90000-0x00000119D4E0A000-memory.dmp

            Filesize

            488KB

          • memory/2152-178-0x00000119DA400000-0x00000119DA422000-memory.dmp

            Filesize

            136KB

          • memory/2152-163-0x00000119D4EF0000-0x00000119D4F66000-memory.dmp

            Filesize

            472KB

          • memory/2152-164-0x00000119BB1E0000-0x00000119BB1EA000-memory.dmp

            Filesize

            40KB

          • memory/2152-177-0x00000119DA3F0000-0x00000119DA3FA000-memory.dmp

            Filesize

            40KB

          • memory/2152-170-0x00000119BB070000-0x00000119BB080000-memory.dmp

            Filesize

            64KB

          • memory/2152-171-0x00000119D9350000-0x00000119D9358000-memory.dmp

            Filesize

            32KB

          • memory/2152-176-0x00000119D92A0000-0x00000119D92AE000-memory.dmp

            Filesize

            56KB

          • memory/2152-173-0x00000119BB070000-0x00000119BB080000-memory.dmp

            Filesize

            64KB

          • memory/2152-174-0x00000119BB070000-0x00000119BB080000-memory.dmp

            Filesize

            64KB

          • memory/2152-175-0x00000119D92D0000-0x00000119D9308000-memory.dmp

            Filesize

            224KB

          • memory/3012-111-0x0000000000400000-0x00000000008AD000-memory.dmp

            Filesize

            4.7MB

          • memory/3012-148-0x0000000000400000-0x00000000008AD000-memory.dmp

            Filesize

            4.7MB

          • memory/3012-24-0x00000000027F0000-0x00000000027F1000-memory.dmp

            Filesize

            4KB

          • memory/4440-32-0x0000000000400000-0x000000000048A000-memory.dmp

            Filesize

            552KB

          • memory/4440-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

            Filesize

            1024KB

          • memory/4440-2-0x00000000021E0000-0x000000000224C000-memory.dmp

            Filesize

            432KB

          • memory/4440-3-0x0000000000400000-0x000000000048A000-memory.dmp

            Filesize

            552KB

          • memory/4440-33-0x00000000021E0000-0x000000000224C000-memory.dmp

            Filesize

            432KB

          • memory/4544-107-0x0000000000400000-0x000000000063B000-memory.dmp

            Filesize

            2.2MB

          • memory/4544-208-0x0000000000400000-0x000000000063B000-memory.dmp

            Filesize

            2.2MB

          • memory/4544-172-0x00000000006D0000-0x00000000007D0000-memory.dmp

            Filesize

            1024KB

          • memory/4544-31-0x0000000000400000-0x000000000063B000-memory.dmp

            Filesize

            2.2MB

          • memory/4544-38-0x0000000061E00000-0x0000000061EF3000-memory.dmp

            Filesize

            972KB

          • memory/4544-30-0x0000000002260000-0x0000000002287000-memory.dmp

            Filesize

            156KB

          • memory/4544-29-0x00000000006D0000-0x00000000007D0000-memory.dmp

            Filesize

            1024KB

          • memory/4544-191-0x0000000000400000-0x000000000063B000-memory.dmp

            Filesize

            2.2MB

          • memory/4544-151-0x0000000000400000-0x000000000063B000-memory.dmp

            Filesize

            2.2MB

          • memory/4544-217-0x0000000000400000-0x000000000063B000-memory.dmp

            Filesize

            2.2MB

          • memory/4580-216-0x00000000721E0000-0x0000000072990000-memory.dmp

            Filesize

            7.7MB

          • memory/4580-215-0x0000000000CF0000-0x0000000000D10000-memory.dmp

            Filesize

            128KB

          • memory/4580-218-0x0000000005930000-0x0000000005940000-memory.dmp

            Filesize

            64KB

          • memory/4580-221-0x00000000721E0000-0x0000000072990000-memory.dmp

            Filesize

            7.7MB