Analysis

  • max time kernel
    146s
  • max time network
    133s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    10/05/2024, 04:44

General

  • Target

    27a8b7ed7ad0cd84c0f4233f3c930313c9042d34bfe84677f3f347467f39c696.exe

  • Size

    372KB

  • MD5

    78004df4224b21ff60ced2bfac05cc35

  • SHA1

    446710fb88702a66a90a946aa950766cad33f592

  • SHA256

    27a8b7ed7ad0cd84c0f4233f3c930313c9042d34bfe84677f3f347467f39c696

  • SHA512

    0c6eeafa7857f63503124e595d6e0ffcd3fabe37a99678b1cac333bef83d993ddf6be8e3348bcde6c93af1241ed746e63f66a70560393cf291d46bdd7457193c

  • SSDEEP

    6144:rte+TLYkD9ZWZImNMlYNOYa4JB4B4tTOgAKx9IvdYlhUHmnfKrbZJd:5L9ZWypUsaK4tTO+x9IFYjUGnkbZJd

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 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 21 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\27a8b7ed7ad0cd84c0f4233f3c930313c9042d34bfe84677f3f347467f39c696.exe
    "C:\Users\Admin\AppData\Local\Temp\27a8b7ed7ad0cd84c0f4233f3c930313c9042d34bfe84677f3f347467f39c696.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4720
    • C:\Users\Admin\AppData\Local\Temp\u3n4.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3n4.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1896
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1896 -s 2100
        3⤵
        • Program crash
        PID:4908
    • C:\Users\Admin\AppData\Local\Temp\u3n4.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3n4.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4680
      • 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:1724
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4720 -s 1028
      2⤵
      • Program crash
      PID:4856
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4720 -ip 4720
    1⤵
      PID:2820
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 1896 -ip 1896
      1⤵
        PID:4724

      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\u3n4.0.exe

        Filesize

        242KB

        MD5

        333a088ed41af0a58b8e5b79e53d4745

        SHA1

        1c144747c6cdf5b87c37076acc927148542cf347

        SHA256

        3fd2a6318c69fba342ca26f55555d6fd4088876f0490780c64574df6b9df920c

        SHA512

        956c10a3dd5647164a7c7d1a0c541177169e89e7015aedfa8a2e972db3c2fbb95182c7a61e7fe5450dbedff6bed2887938263afc959581204e1ac0e1c2111bbc

      • C:\Users\Admin\AppData\Local\Temp\u3n4.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1724-159-0x000001D53A270000-0x000001D53A278000-memory.dmp

        Filesize

        32KB

      • memory/1724-149-0x000001D535C40000-0x000001D535C62000-memory.dmp

        Filesize

        136KB

      • memory/1724-177-0x000001D5358F0000-0x000001D535AA3000-memory.dmp

        Filesize

        1.7MB

      • memory/1724-169-0x000001D53A9D0000-0x000001D53A9EE000-memory.dmp

        Filesize

        120KB

      • memory/1724-167-0x000001D53AA70000-0x000001D53AAE6000-memory.dmp

        Filesize

        472KB

      • memory/1724-166-0x000001D53A990000-0x000001D53A99C000-memory.dmp

        Filesize

        48KB

      • memory/1724-163-0x000001D53B1A0000-0x000001D53B6C8000-memory.dmp

        Filesize

        5.2MB

      • memory/1724-162-0x000001D53A970000-0x000001D53A992000-memory.dmp

        Filesize

        136KB

      • memory/1724-161-0x000001D53AC10000-0x000001D53AC72000-memory.dmp

        Filesize

        392KB

      • memory/1724-139-0x000001D517930000-0x000001D51B164000-memory.dmp

        Filesize

        56.2MB

      • memory/1724-140-0x000001D535AB0000-0x000001D535BBA000-memory.dmp

        Filesize

        1.0MB

      • memory/1724-141-0x000001D51B750000-0x000001D51B760000-memory.dmp

        Filesize

        64KB

      • memory/1724-142-0x000001D51B770000-0x000001D51B77C000-memory.dmp

        Filesize

        48KB

      • memory/1724-143-0x000001D51B760000-0x000001D51B774000-memory.dmp

        Filesize

        80KB

      • memory/1724-144-0x000001D5356C0000-0x000001D5356E4000-memory.dmp

        Filesize

        144KB

      • memory/1724-145-0x000001D535BC0000-0x000001D535BCA000-memory.dmp

        Filesize

        40KB

      • memory/1724-146-0x000001D535BE0000-0x000001D535C0A000-memory.dmp

        Filesize

        168KB

      • memory/1724-147-0x000001D535DD0000-0x000001D535E82000-memory.dmp

        Filesize

        712KB

      • memory/1724-148-0x000001D535E80000-0x000001D535ED0000-memory.dmp

        Filesize

        320KB

      • memory/1724-160-0x000001D53ABF0000-0x000001D53ABFA000-memory.dmp

        Filesize

        40KB

      • memory/1724-150-0x000001D51B5D0000-0x000001D51B5DA000-memory.dmp

        Filesize

        40KB

      • memory/1724-154-0x000001D535ED0000-0x000001D5361D0000-memory.dmp

        Filesize

        3.0MB

      • memory/1724-156-0x000001D53A940000-0x000001D53A948000-memory.dmp

        Filesize

        32KB

      • memory/1724-158-0x000001D53A250000-0x000001D53A25E000-memory.dmp

        Filesize

        56KB

      • memory/1724-157-0x000001D53A280000-0x000001D53A2B8000-memory.dmp

        Filesize

        224KB

      • memory/1896-95-0x0000000000400000-0x0000000002AF9000-memory.dmp

        Filesize

        39.0MB

      • memory/1896-168-0x0000000000400000-0x0000000002AF9000-memory.dmp

        Filesize

        39.0MB

      • memory/1896-37-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/1896-176-0x0000000000400000-0x0000000002AF9000-memory.dmp

        Filesize

        39.0MB

      • memory/1896-36-0x0000000000400000-0x0000000002AF9000-memory.dmp

        Filesize

        39.0MB

      • memory/4680-138-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4680-96-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4720-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4720-30-0x0000000000400000-0x0000000002B1B000-memory.dmp

        Filesize

        39.1MB

      • memory/4720-2-0x0000000004870000-0x00000000048DC000-memory.dmp

        Filesize

        432KB

      • memory/4720-31-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4720-1-0x0000000002D30000-0x0000000002E30000-memory.dmp

        Filesize

        1024KB