Analysis

  • max time kernel
    93s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-04-2024 20:17

General

  • Target

    tmp.exe

  • Size

    454KB

  • MD5

    ff5102331f070d44be63a3446d9a583a

  • SHA1

    5df265bdd7f9302ef089b5c03183f3c6ecf11a56

  • SHA256

    c76e1dc0b8436bd1dfb05c050fb5fd7c890c031088b0698377e0a50c556f01d8

  • SHA512

    4d25a03b35f745d6a3f512add819cfd312aa42598bac555cb781e8621ae01b4111d83a67f2c69ab6b3c640517d5ae533bb19de201561edb7cf12774bc7a2c00e

  • SSDEEP

    12288:2iB9S1zi63i/LYjQogh7cz3EP4Fn4IWneiS6f:2irSI63iTYkogh4DlKrf

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 30 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\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1792
    • C:\Users\Admin\AppData\Local\Temp\u1ds.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1ds.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:2156
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\CAFHDBGHJK.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4800
        • C:\Users\Admin\AppData\Local\Temp\CAFHDBGHJK.exe
          "C:\Users\Admin\AppData\Local\Temp\CAFHDBGHJK.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1620
          • 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\CAFHDBGHJK.exe
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4268
            • C:\Windows\SysWOW64\PING.EXE
              ping 2.2.2.2 -n 1 -w 3000
              6⤵
              • Runs ping.exe
              PID:3760
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2156 -s 2328
        3⤵
        • Program crash
        PID:3728
    • C:\Users\Admin\AppData\Local\Temp\u1ds.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u1ds.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:4444
      • 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:4628
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1792 -s 984
      2⤵
      • Program crash
      PID:3152
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1792 -ip 1792
    1⤵
      PID:4456
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 2156 -ip 2156
      1⤵
        PID:3740

      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\CAFHDBGHJK.exe

        Filesize

        106KB

        MD5

        fe380780b5c35bd6d54541791151c2be

        SHA1

        7fe3a583cf91474c733f85cebf3c857682e269e1

        SHA256

        b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53

        SHA512

        ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

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

        Filesize

        2KB

        MD5

        7a31dc912d0f90826cefa6b9624b93bb

        SHA1

        7d82088732bbfbff133003c51d11390a38650133

        SHA256

        136b0ea5b3984aa6b919a613190467f89393355b16218d10325312deff6bb0a7

        SHA512

        5ad75253aca5d837209b8878215ab5c0e326f2b56dfaf2e5307ca9b39a63655994a8308107d638b0b239ea5d32219fd05e2adea2ae93417cbbdb28ab422e31a2

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

        Filesize

        3KB

        MD5

        99ca54cc520d3df57b161ccb1b32ee4f

        SHA1

        c00dce24b938d717fd226d134f40b3b2fcab0ef1

        SHA256

        9845aecd93e8a03d67e74fffc3875de20affe2c865dad49b410be2d894e3925b

        SHA512

        95694a9047c6cdef3a26798da6ac87c3e67a775b460369d58624076c200a7ca124cf81ff87903f007786cd5f173a4f682ba44ba96ec58fc583afc7369dd5e57a

      • C:\Users\Admin\AppData\Local\Temp\u1ds.0.exe

        Filesize

        312KB

        MD5

        bdcc90f5922fa5c4d3431a05dddc4dee

        SHA1

        dbc148068e881bcd61c839998f8ecedb7621b44a

        SHA256

        c7357c7eab02c84d5a78daf9d6bcf8159d113a1ea0bde9c3d79f389a78be4211

        SHA512

        f312f0cec92e7c66265d39c86a7092c45f5e558a15c625790ba7b716fda6871d0a3ea8c4cc8eab53076695776d88282c02791b57e9789ba47646ee4f9e2d0868

      • C:\Users\Admin\AppData\Local\Temp\u1ds.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1620-159-0x00000000715E0000-0x0000000071D90000-memory.dmp

        Filesize

        7.7MB

      • memory/1620-152-0x0000000000B10000-0x0000000000B30000-memory.dmp

        Filesize

        128KB

      • memory/1620-154-0x00000000715E0000-0x0000000071D90000-memory.dmp

        Filesize

        7.7MB

      • memory/1620-155-0x00000000055F0000-0x0000000005600000-memory.dmp

        Filesize

        64KB

      • memory/1792-16-0x0000000000400000-0x0000000002B9C000-memory.dmp

        Filesize

        39.6MB

      • memory/1792-85-0x0000000004A10000-0x0000000004A7C000-memory.dmp

        Filesize

        432KB

      • memory/1792-81-0x0000000000400000-0x0000000002B9C000-memory.dmp

        Filesize

        39.6MB

      • memory/1792-1-0x0000000002E60000-0x0000000002F60000-memory.dmp

        Filesize

        1024KB

      • memory/1792-3-0x0000000000400000-0x0000000002B9C000-memory.dmp

        Filesize

        39.6MB

      • memory/1792-2-0x0000000004A10000-0x0000000004A7C000-memory.dmp

        Filesize

        432KB

      • memory/2156-17-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/2156-130-0x0000000000400000-0x0000000002B79000-memory.dmp

        Filesize

        39.5MB

      • memory/2156-92-0x0000000000400000-0x0000000002B79000-memory.dmp

        Filesize

        39.5MB

      • memory/2156-15-0x0000000000400000-0x0000000002B79000-memory.dmp

        Filesize

        39.5MB

      • memory/2156-14-0x0000000004780000-0x00000000047A7000-memory.dmp

        Filesize

        156KB

      • memory/2156-13-0x0000000002BC0000-0x0000000002CC0000-memory.dmp

        Filesize

        1024KB

      • memory/2156-151-0x0000000000400000-0x0000000002B79000-memory.dmp

        Filesize

        39.5MB

      • memory/4444-131-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4444-146-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4444-60-0x0000000002650000-0x0000000002651000-memory.dmp

        Filesize

        4KB

      • memory/4628-157-0x000002701B2A0000-0x000002701B2B0000-memory.dmp

        Filesize

        64KB

      • memory/4628-175-0x000002701B7A0000-0x000002701BAA0000-memory.dmp

        Filesize

        3.0MB

      • memory/4628-147-0x00007FFBAB000000-0x00007FFBABAC1000-memory.dmp

        Filesize

        10.8MB

      • memory/4628-160-0x000002701B470000-0x000002701B580000-memory.dmp

        Filesize

        1.1MB

      • memory/4628-161-0x000002701A230000-0x000002701A240000-memory.dmp

        Filesize

        64KB

      • memory/4628-162-0x000002701B0C0000-0x000002701B0CC000-memory.dmp

        Filesize

        48KB

      • memory/4628-163-0x000002701B0B0000-0x000002701B0C4000-memory.dmp

        Filesize

        80KB

      • memory/4628-164-0x000002701B240000-0x000002701B264000-memory.dmp

        Filesize

        144KB

      • memory/4628-165-0x000002701B260000-0x000002701B26A000-memory.dmp

        Filesize

        40KB

      • memory/4628-167-0x000002701B270000-0x000002701B29A000-memory.dmp

        Filesize

        168KB

      • memory/4628-168-0x000002701B6C0000-0x000002701B73A000-memory.dmp

        Filesize

        488KB

      • memory/4628-166-0x000002701B2B0000-0x000002701B362000-memory.dmp

        Filesize

        712KB

      • memory/4628-169-0x000002701B740000-0x000002701B7A2000-memory.dmp

        Filesize

        392KB

      • memory/4628-170-0x000002707D940000-0x000002707D9B6000-memory.dmp

        Filesize

        472KB

      • memory/4628-171-0x0000027001940000-0x000002700194A000-memory.dmp

        Filesize

        40KB

      • memory/4628-153-0x0000027079C90000-0x000002707D588000-memory.dmp

        Filesize

        57.0MB

      • memory/4628-177-0x000002701B2A0000-0x000002701B2B0000-memory.dmp

        Filesize

        64KB

      • memory/4628-179-0x000002701B2A0000-0x000002701B2B0000-memory.dmp

        Filesize

        64KB

      • memory/4628-178-0x000002707D640000-0x000002707D648000-memory.dmp

        Filesize

        32KB

      • memory/4628-180-0x000002707D900000-0x000002707D938000-memory.dmp

        Filesize

        224KB

      • memory/4628-181-0x000002707D650000-0x000002707D65E000-memory.dmp

        Filesize

        56KB

      • memory/4628-182-0x000002701FB80000-0x000002701FB8A000-memory.dmp

        Filesize

        40KB

      • memory/4628-183-0x000002701FB90000-0x000002701FBB2000-memory.dmp

        Filesize

        136KB

      • memory/4628-184-0x0000027020F30000-0x0000027021458000-memory.dmp

        Filesize

        5.2MB

      • memory/4628-187-0x000002707DA20000-0x000002707DA70000-memory.dmp

        Filesize

        320KB

      • memory/4628-188-0x000002701FBB0000-0x000002701FBBC000-memory.dmp

        Filesize

        48KB

      • memory/4628-189-0x000002707D9D0000-0x000002707D9F2000-memory.dmp

        Filesize

        136KB

      • memory/4628-190-0x000002707D8E0000-0x000002707D8FE000-memory.dmp

        Filesize

        120KB

      • memory/4628-192-0x00007FFBAB000000-0x00007FFBABAC1000-memory.dmp

        Filesize

        10.8MB

      • memory/4628-193-0x000002701B2A0000-0x000002701B2B0000-memory.dmp

        Filesize

        64KB

      • memory/4628-194-0x000002701B2A0000-0x000002701B2B0000-memory.dmp

        Filesize

        64KB

      • memory/4628-195-0x000002701B2A0000-0x000002701B2B0000-memory.dmp

        Filesize

        64KB