Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-04-2024 08:15

General

  • Target

    b0174c2a0822dca72e78e258d93686c4193d588c2c3dcd3b7e2753a6df528dba.exe

  • Size

    347KB

  • MD5

    935b3a19c6be5d0347fba2f24d770cc6

  • SHA1

    2dd2bcdc8c4a0f1ecbac1fe7190a8ee9b72e3bb0

  • SHA256

    b0174c2a0822dca72e78e258d93686c4193d588c2c3dcd3b7e2753a6df528dba

  • SHA512

    ff8a512bbc0becdb2147f64f1093911556bf093840b0b95d2ce4461ebc266c738b52fed2b6800b3d60a188bb662ebc9fcdd2caeac18c361b2934ca7e2fae54fa

  • SSDEEP

    6144:cCnUqAIgawzMsiaKYHRJPX4wE89oZ9wea/GIY3jnn/a1CVUDU1f:zUqAIgrzMsi2XSUozwdI3j/iCcSf

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.209

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Signatures

  • Buer

    Buer is a new modular loader first seen in August 2019.

  • 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 27 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\b0174c2a0822dca72e78e258d93686c4193d588c2c3dcd3b7e2753a6df528dba.exe
    "C:\Users\Admin\AppData\Local\Temp\b0174c2a0822dca72e78e258d93686c4193d588c2c3dcd3b7e2753a6df528dba.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4304
    • C:\Users\Admin\AppData\Local\Temp\u3bk.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3bk.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:3568
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\JDAFBKECAK.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:376
        • C:\Users\Admin\AppData\Local\Temp\JDAFBKECAK.exe
          "C:\Users\Admin\AppData\Local\Temp\JDAFBKECAK.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:680
          • 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\JDAFBKECAK.exe
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4388
            • C:\Windows\SysWOW64\PING.EXE
              ping 2.2.2.2 -n 1 -w 3000
              6⤵
              • Runs ping.exe
              PID:4164
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3568 -s 2456
        3⤵
        • Program crash
        PID:2492
    • C:\Users\Admin\AppData\Local\Temp\u3bk.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3bk.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:4948
      • 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:2952
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 1136
      2⤵
      • Program crash
      PID:4560
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4304 -ip 4304
    1⤵
      PID:2508
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3568 -ip 3568
      1⤵
        PID:2444

      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\JDAFBKECAK.exe

        Filesize

        106KB

        MD5

        fe380780b5c35bd6d54541791151c2be

        SHA1

        7fe3a583cf91474c733f85cebf3c857682e269e1

        SHA256

        b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53

        SHA512

        ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

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

        Filesize

        3KB

        MD5

        8dece56dda7aa02bc3a3fbee3578fc1f

        SHA1

        1a317cde4f9a0072b208d6abb1669bbc25f70c72

        SHA256

        8e0f5e7095a0273cd7d5abd55e2b13b835cfdca022ca640cf9ec628611730152

        SHA512

        97ea030f1cd490ebc832a15780a09b3396c99a5b4a998b92d2caa2f7295eef87b6a4559def9cf8fc2ffc8c27c8b8c5d487b75af68e6bad688633587fa3666c20

      • C:\Users\Admin\AppData\Local\Temp\u3bk.0.exe

        Filesize

        246KB

        MD5

        ef9cbd3ef14d7eefac3b40d46e06a283

        SHA1

        7dd489971e51a178d0e7072341a0e262727c7c4d

        SHA256

        0d70c29825afdca6964b79013ec7e3dd1c1fb324205f293891bf88235c323d62

        SHA512

        352b91c2f5caf0f1dfe42c33fad397b6fc4abc379af164ab0eb3582c7cf004b1324e73db438b4c9410a0a5210a9034b0e66434070c2f66b413153d991b6b4d5e

      • C:\Users\Admin\AppData\Local\Temp\u3bk.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/680-189-0x00000000718D0000-0x0000000072080000-memory.dmp

        Filesize

        7.7MB

      • memory/680-184-0x0000000004B60000-0x0000000004B70000-memory.dmp

        Filesize

        64KB

      • memory/680-178-0x00000000718D0000-0x0000000072080000-memory.dmp

        Filesize

        7.7MB

      • memory/680-172-0x00000000001D0000-0x00000000001F0000-memory.dmp

        Filesize

        128KB

      • memory/2952-165-0x000001D46A820000-0x000001D46A844000-memory.dmp

        Filesize

        144KB

      • memory/2952-175-0x000001D46BE00000-0x000001D46BE62000-memory.dmp

        Filesize

        392KB

      • memory/2952-210-0x000001D46B810000-0x000001D46B820000-memory.dmp

        Filesize

        64KB

      • memory/2952-209-0x000001D46B810000-0x000001D46B820000-memory.dmp

        Filesize

        64KB

      • memory/2952-208-0x000001D46B810000-0x000001D46B820000-memory.dmp

        Filesize

        64KB

      • memory/2952-207-0x000001D46B810000-0x000001D46B820000-memory.dmp

        Filesize

        64KB

      • memory/2952-206-0x000001D46B810000-0x000001D46B820000-memory.dmp

        Filesize

        64KB

      • memory/2952-205-0x00007FFA61FA0000-0x00007FFA62A61000-memory.dmp

        Filesize

        10.8MB

      • memory/2952-203-0x000001D46C3F0000-0x000001D46C40E000-memory.dmp

        Filesize

        120KB

      • memory/2952-202-0x000001D46C3C0000-0x000001D46C3E2000-memory.dmp

        Filesize

        136KB

      • memory/2952-201-0x000001D46C320000-0x000001D46C32C000-memory.dmp

        Filesize

        48KB

      • memory/2952-199-0x000001D46C370000-0x000001D46C3C0000-memory.dmp

        Filesize

        320KB

      • memory/2952-150-0x00007FFA61FA0000-0x00007FFA62A61000-memory.dmp

        Filesize

        10.8MB

      • memory/2952-151-0x000001D44CA80000-0x000001D450378000-memory.dmp

        Filesize

        57.0MB

      • memory/2952-200-0x000001D46B810000-0x000001D46B820000-memory.dmp

        Filesize

        64KB

      • memory/2952-157-0x000001D46B810000-0x000001D46B820000-memory.dmp

        Filesize

        64KB

      • memory/2952-158-0x000001D46BA80000-0x000001D46BB90000-memory.dmp

        Filesize

        1.1MB

      • memory/2952-162-0x000001D4520E0000-0x000001D4520F0000-memory.dmp

        Filesize

        64KB

      • memory/2952-163-0x000001D46A800000-0x000001D46A80C000-memory.dmp

        Filesize

        48KB

      • memory/2952-164-0x000001D46A7F0000-0x000001D46A804000-memory.dmp

        Filesize

        80KB

      • memory/2952-196-0x000001D471660000-0x000001D471B88000-memory.dmp

        Filesize

        5.2MB

      • memory/2952-195-0x000001D46C300000-0x000001D46C322000-memory.dmp

        Filesize

        136KB

      • memory/2952-170-0x000001D46B800000-0x000001D46B80A000-memory.dmp

        Filesize

        40KB

      • memory/2952-171-0x000001D46BCD0000-0x000001D46BD82000-memory.dmp

        Filesize

        712KB

      • memory/2952-194-0x000001D46C2F0000-0x000001D46C2FA000-memory.dmp

        Filesize

        40KB

      • memory/2952-173-0x000001D46BA20000-0x000001D46BA4A000-memory.dmp

        Filesize

        168KB

      • memory/2952-193-0x000001D46C270000-0x000001D46C27E000-memory.dmp

        Filesize

        56KB

      • memory/2952-174-0x000001D46BD80000-0x000001D46BDFA000-memory.dmp

        Filesize

        488KB

      • memory/2952-192-0x000001D470260000-0x000001D470298000-memory.dmp

        Filesize

        224KB

      • memory/2952-176-0x000001D46BEE0000-0x000001D46BF56000-memory.dmp

        Filesize

        472KB

      • memory/2952-188-0x000001D46B810000-0x000001D46B820000-memory.dmp

        Filesize

        64KB

      • memory/2952-177-0x000001D450770000-0x000001D45077A000-memory.dmp

        Filesize

        40KB

      • memory/2952-182-0x000001D46BF60000-0x000001D46C260000-memory.dmp

        Filesize

        3.0MB

      • memory/2952-191-0x000001D470920000-0x000001D470928000-memory.dmp

        Filesize

        32KB

      • memory/2952-190-0x000001D46B810000-0x000001D46B820000-memory.dmp

        Filesize

        64KB

      • memory/3568-134-0x0000000002C00000-0x0000000002D00000-memory.dmp

        Filesize

        1024KB

      • memory/3568-133-0x0000000000400000-0x0000000002B67000-memory.dmp

        Filesize

        39.4MB

      • memory/3568-52-0x0000000000400000-0x0000000002B67000-memory.dmp

        Filesize

        39.4MB

      • memory/3568-69-0x0000000000400000-0x0000000002B67000-memory.dmp

        Filesize

        39.4MB

      • memory/3568-169-0x0000000000400000-0x0000000002B67000-memory.dmp

        Filesize

        39.4MB

      • memory/3568-13-0x0000000002C00000-0x0000000002D00000-memory.dmp

        Filesize

        1024KB

      • memory/3568-15-0x0000000000400000-0x0000000002B67000-memory.dmp

        Filesize

        39.4MB

      • memory/3568-17-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3568-14-0x0000000004790000-0x00000000047B7000-memory.dmp

        Filesize

        156KB

      • memory/4304-62-0x00000000048E0000-0x000000000494C000-memory.dmp

        Filesize

        432KB

      • memory/4304-1-0x0000000002D00000-0x0000000002E00000-memory.dmp

        Filesize

        1024KB

      • memory/4304-2-0x00000000048E0000-0x000000000494C000-memory.dmp

        Filesize

        432KB

      • memory/4304-3-0x0000000000400000-0x0000000002B80000-memory.dmp

        Filesize

        39.5MB

      • memory/4304-109-0x0000000000400000-0x0000000002B80000-memory.dmp

        Filesize

        39.5MB

      • memory/4304-16-0x0000000000400000-0x0000000002B80000-memory.dmp

        Filesize

        39.5MB

      • memory/4304-58-0x0000000002D00000-0x0000000002E00000-memory.dmp

        Filesize

        1024KB

      • memory/4948-135-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4948-81-0x00000000027F0000-0x00000000027F1000-memory.dmp

        Filesize

        4KB

      • memory/4948-149-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB