Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-05-2024 09:05

General

  • Target

    41ea3f6c834aa0a1c508bed3884d25a76cbbc0d93815df7e54217e7233b77364.exe

  • Size

    387KB

  • MD5

    3629b3a7026f31b3eb4cf9b5ca4ebe8b

  • SHA1

    3b75d1a8b595c46ee87d0f040d2cb54231a7f992

  • SHA256

    41ea3f6c834aa0a1c508bed3884d25a76cbbc0d93815df7e54217e7233b77364

  • SHA512

    6867478b64c35e32f5d7ba58e08a53c503780126dc86f0e4cb273d520938b41a5504304fed4b973765abfc68967487fb8ad8c8363ed01dfa7a87954ec1742ae4

  • SSDEEP

    6144:HclsoLz0jzrOMX0kEwzU31zImLUKkOFyV9WYpcAjTPK:Hclso/0PriWi1zImobQ+XPK

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 44 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\41ea3f6c834aa0a1c508bed3884d25a76cbbc0d93815df7e54217e7233b77364.exe
    "C:\Users\Admin\AppData\Local\Temp\41ea3f6c834aa0a1c508bed3884d25a76cbbc0d93815df7e54217e7233b77364.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:652
    • C:\Users\Admin\AppData\Local\Temp\ui4.0.exe
      "C:\Users\Admin\AppData\Local\Temp\ui4.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3952
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3952 -s 2356
        3⤵
        • Program crash
        PID:1568
    • C:\Users\Admin\AppData\Local\Temp\ui4.1.exe
      "C:\Users\Admin\AppData\Local\Temp\ui4.1.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:4968
      • 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:2424
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 652 -s 1516
      2⤵
      • Program crash
      PID:2604
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 652 -ip 652
    1⤵
      PID:1132
    • 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 --mojo-platform-channel-handle=3156 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:3
      1⤵
        PID:3516
      • 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 --mojo-platform-channel-handle=3528 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:3920
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3952 -ip 3952
          1⤵
            PID:5104

          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\ui4.0.exe

            Filesize

            245KB

            MD5

            e975a0eae2991f1e4c995d7a4e3ffd79

            SHA1

            90ca4c9586bf9d7a19312228b1fbba7dace29fc4

            SHA256

            b00335a75190fd3b930329adf19c93b483975cb24cc056bea62b0ef359abe3fa

            SHA512

            843e70b2ed07a7487c45471999cf521dd6d9e2049be013c2e57f0d6e14dfbda9cb97a324413d8bdcd13d3bf6e8f484f2ab89a541c92550f430d081e2434c919a

          • C:\Users\Admin\AppData\Local\Temp\ui4.1.exe

            Filesize

            4.6MB

            MD5

            397926927bca55be4a77839b1c44de6e

            SHA1

            e10f3434ef3021c399dbba047832f02b3c898dbd

            SHA256

            4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

            SHA512

            cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

          • memory/652-1-0x0000000002760000-0x0000000002860000-memory.dmp

            Filesize

            1024KB

          • memory/652-9-0x0000000000400000-0x000000000259D000-memory.dmp

            Filesize

            33.6MB

          • memory/652-106-0x0000000004200000-0x000000000426C000-memory.dmp

            Filesize

            432KB

          • memory/652-3-0x0000000000400000-0x000000000046F000-memory.dmp

            Filesize

            444KB

          • memory/652-107-0x0000000000400000-0x000000000046F000-memory.dmp

            Filesize

            444KB

          • memory/652-84-0x0000000000400000-0x000000000259D000-memory.dmp

            Filesize

            33.6MB

          • memory/652-2-0x0000000004200000-0x000000000426C000-memory.dmp

            Filesize

            432KB

          • memory/2424-154-0x0000020042780000-0x0000020042790000-memory.dmp

            Filesize

            64KB

          • memory/2424-162-0x000002005B660000-0x000002005B682000-memory.dmp

            Filesize

            136KB

          • memory/2424-190-0x00000200601A0000-0x00000200601BE000-memory.dmp

            Filesize

            120KB

          • memory/2424-188-0x0000020060240000-0x00000200602B6000-memory.dmp

            Filesize

            472KB

          • memory/2424-187-0x0000020060160000-0x000002006016C000-memory.dmp

            Filesize

            48KB

          • memory/2424-184-0x00000200610B0000-0x00000200615D8000-memory.dmp

            Filesize

            5.2MB

          • memory/2424-174-0x0000020060100000-0x0000020060162000-memory.dmp

            Filesize

            392KB

          • memory/2424-151-0x000002003D210000-0x0000020040A44000-memory.dmp

            Filesize

            56.2MB

          • memory/2424-153-0x000002005B270000-0x000002005B37A000-memory.dmp

            Filesize

            1.0MB

          • memory/2424-155-0x0000020042810000-0x000002004281C000-memory.dmp

            Filesize

            48KB

          • memory/2424-175-0x00000200600D0000-0x00000200600F2000-memory.dmp

            Filesize

            136KB

          • memory/2424-156-0x0000020042800000-0x0000020042814000-memory.dmp

            Filesize

            80KB

          • memory/2424-157-0x000002005B040000-0x000002005B064000-memory.dmp

            Filesize

            144KB

          • memory/2424-158-0x000002005B4C0000-0x000002005B4CA000-memory.dmp

            Filesize

            40KB

          • memory/2424-159-0x000002005B4E0000-0x000002005B50A000-memory.dmp

            Filesize

            168KB

          • memory/2424-160-0x000002005B510000-0x000002005B5C2000-memory.dmp

            Filesize

            712KB

          • memory/2424-161-0x000002005B610000-0x000002005B660000-memory.dmp

            Filesize

            320KB

          • memory/2424-173-0x000002005FA80000-0x000002005FA8A000-memory.dmp

            Filesize

            40KB

          • memory/2424-163-0x00000200427E0000-0x00000200427EA000-memory.dmp

            Filesize

            40KB

          • memory/2424-167-0x000002005B690000-0x000002005B990000-memory.dmp

            Filesize

            3.0MB

          • memory/2424-169-0x000002005F2F0000-0x000002005F2F8000-memory.dmp

            Filesize

            32KB

          • memory/2424-170-0x000002005FA00000-0x000002005FA38000-memory.dmp

            Filesize

            224KB

          • memory/2424-171-0x000002005F9C0000-0x000002005F9CE000-memory.dmp

            Filesize

            56KB

          • memory/2424-172-0x000002005F9E0000-0x000002005F9E8000-memory.dmp

            Filesize

            32KB

          • memory/3952-85-0x0000000000400000-0x000000000257A000-memory.dmp

            Filesize

            33.5MB

          • memory/3952-15-0x0000000000400000-0x000000000257A000-memory.dmp

            Filesize

            33.5MB

          • memory/3952-16-0x0000000000400000-0x000000000257A000-memory.dmp

            Filesize

            33.5MB

          • memory/3952-133-0x0000000000400000-0x000000000257A000-memory.dmp

            Filesize

            33.5MB

          • memory/3952-189-0x0000000000400000-0x000000000257A000-memory.dmp

            Filesize

            33.5MB

          • memory/3952-28-0x0000000061E00000-0x0000000061EF3000-memory.dmp

            Filesize

            972KB

          • memory/3952-14-0x0000000000400000-0x000000000257A000-memory.dmp

            Filesize

            33.5MB

          • memory/3952-197-0x0000000000400000-0x000000000257A000-memory.dmp

            Filesize

            33.5MB

          • memory/4968-150-0x0000000000400000-0x00000000008AD000-memory.dmp

            Filesize

            4.7MB

          • memory/4968-134-0x0000000000400000-0x00000000008AD000-memory.dmp

            Filesize

            4.7MB