Analysis

  • max time kernel
    126s
  • max time network
    129s
  • 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 09:18

General

  • Target

    b8a7a1caab39e98f1afb9fe33297656d3e8321c89bc9f08ede6a77394ecd58c7.exe

  • Size

    372KB

  • MD5

    7329e90804e4f9bbe7d5d4d9445aa54f

  • SHA1

    f3022723a9478868f03f37499c47059e970f212e

  • SHA256

    b8a7a1caab39e98f1afb9fe33297656d3e8321c89bc9f08ede6a77394ecd58c7

  • SHA512

    b1596278f2b7a5870dafd8e22eada397e11045e14fd9624636764809f7cb48ba0b64d6b2d4f331795592c650a5303c7f46d1365a334ddd10c2c5ca50c7781a1d

  • SSDEEP

    6144:CKnC1VEKPHySHREDpdksUZBg7C6vZb/TwZ7LylNK6nhByUSXyYTkJft/:CKnCgaSSxELksMUvlLwZ7LKjJ8kJl/

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 23 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\b8a7a1caab39e98f1afb9fe33297656d3e8321c89bc9f08ede6a77394ecd58c7.exe
    "C:\Users\Admin\AppData\Local\Temp\b8a7a1caab39e98f1afb9fe33297656d3e8321c89bc9f08ede6a77394ecd58c7.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4588
    • C:\Users\Admin\AppData\Local\Temp\u3jg.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3jg.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3168
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3168 -s 2436
        3⤵
        • Program crash
        PID:2436
    • C:\Users\Admin\AppData\Local\Temp\u3jg.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3jg.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:244
      • 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:4992
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 1156
      2⤵
      • Program crash
      PID:3700
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4588 -ip 4588
    1⤵
      PID:432
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3168 -ip 3168
      1⤵
        PID:1488

      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

        758489e0ccaad96cf6fc0f131a4307c2

        SHA1

        85ec58857d634d2628c1423b479f705d7fa5080c

        SHA256

        57dfb59b38eb6d85b976e71f41fe043bceaffa1d0263002497fb89ea21e8660e

        SHA512

        51373e9d6089355e81a57f9e3cc39a6cf5730fe00c2b41eb431e800449c7b647221df2bc0f3779595460ae6bb63aca65ace4dc5df54457df885cbef7c1dd5b37

      • C:\Users\Admin\AppData\Local\Temp\u3jg.0.exe

        Filesize

        230KB

        MD5

        cb0f143b280b0c05a99a0f3e8738b677

        SHA1

        1bccf20abd6596cd529764d64de49246478423a5

        SHA256

        d8a59077be36b67679feb9e8f1df536378f2caf9be5e0d8abad95453d8589c79

        SHA512

        a57a0313ecd220540153fad20b96fb8ae61f62cb34fa9c35b4a93df693bf9fc8f55c7e50342603e86ece4ceae68ac86f1cadb61754bd787cf3b32aa085cd867b

      • C:\Users\Admin\AppData\Local\Temp\u3jg.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/244-128-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/244-140-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3168-127-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/3168-32-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/3168-37-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3168-25-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/3168-28-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/4588-29-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/4588-1-0x0000000002840000-0x0000000002940000-memory.dmp

        Filesize

        1024KB

      • memory/4588-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4588-30-0x00000000042E0000-0x000000000434C000-memory.dmp

        Filesize

        432KB

      • memory/4588-2-0x00000000042E0000-0x000000000434C000-memory.dmp

        Filesize

        432KB

      • memory/4588-31-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4992-142-0x0000019E67B20000-0x0000019E67C2A000-memory.dmp

        Filesize

        1.0MB

      • memory/4992-152-0x0000019E4EF60000-0x0000019E4EF6A000-memory.dmp

        Filesize

        40KB

      • memory/4992-144-0x0000019E4EFA0000-0x0000019E4EFAC000-memory.dmp

        Filesize

        48KB

      • memory/4992-143-0x0000019E4EF80000-0x0000019E4EF90000-memory.dmp

        Filesize

        64KB

      • memory/4992-145-0x0000019E4EF90000-0x0000019E4EFA4000-memory.dmp

        Filesize

        80KB

      • memory/4992-146-0x0000019E67860000-0x0000019E67884000-memory.dmp

        Filesize

        144KB

      • memory/4992-147-0x0000019E67890000-0x0000019E6789A000-memory.dmp

        Filesize

        40KB

      • memory/4992-149-0x0000019E67D80000-0x0000019E67E32000-memory.dmp

        Filesize

        712KB

      • memory/4992-148-0x0000019E67AD0000-0x0000019E67AFA000-memory.dmp

        Filesize

        168KB

      • memory/4992-150-0x0000019E67E80000-0x0000019E67ED0000-memory.dmp

        Filesize

        320KB

      • memory/4992-151-0x0000019E67E30000-0x0000019E67E52000-memory.dmp

        Filesize

        136KB

      • memory/4992-141-0x0000019E49AD0000-0x0000019E4D304000-memory.dmp

        Filesize

        56.2MB

      • memory/4992-156-0x0000019E67ED0000-0x0000019E681D0000-memory.dmp

        Filesize

        3.0MB

      • memory/4992-158-0x0000019E6C320000-0x0000019E6C328000-memory.dmp

        Filesize

        32KB

      • memory/4992-159-0x0000019E6C2A0000-0x0000019E6C2D8000-memory.dmp

        Filesize

        224KB

      • memory/4992-160-0x0000019E6C270000-0x0000019E6C27E000-memory.dmp

        Filesize

        56KB

      • memory/4992-161-0x0000019E6C290000-0x0000019E6C298000-memory.dmp

        Filesize

        32KB

      • memory/4992-162-0x0000019E6C940000-0x0000019E6C94A000-memory.dmp

        Filesize

        40KB

      • memory/4992-163-0x0000019E6C9A0000-0x0000019E6CA02000-memory.dmp

        Filesize

        392KB

      • memory/4992-164-0x0000019E6C950000-0x0000019E6C972000-memory.dmp

        Filesize

        136KB

      • memory/4992-165-0x0000019E6CF30000-0x0000019E6D458000-memory.dmp

        Filesize

        5.2MB

      • memory/4992-168-0x0000019E6C970000-0x0000019E6C97C000-memory.dmp

        Filesize

        48KB

      • memory/4992-169-0x0000019E6CD40000-0x0000019E6CDB6000-memory.dmp

        Filesize

        472KB

      • memory/4992-170-0x0000019E6CCA0000-0x0000019E6CCBE000-memory.dmp

        Filesize

        120KB