Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    10-05-2024 16:00

General

  • Target

    4b36b661d64f099880ad4d09daba7508b4d13684ba360b376fb58a39ee606e1e.exe

  • Size

    373KB

  • MD5

    40a87476693c716e87906d6ebe332bee

  • SHA1

    cd1956e7b3ecc089de9e8b2bcfb3d26444353d68

  • SHA256

    4b36b661d64f099880ad4d09daba7508b4d13684ba360b376fb58a39ee606e1e

  • SHA512

    59e09655b573e534bfa1b5947324228520cf48b94d5a47ab8cfd809b3ad5fa3b65b5c50b6efe9e3b408e03b7c00ab87fda916714d0a1f01a0d08f51e893aa8d5

  • SSDEEP

    6144:rTePZlPmlhKy8Z7Hejcr9mg7OWB2GhXJdv4Ub88F3YXCfYvPoyogzTxvV:rTePHIhKbDrdvfQ8RmCgvloUtV

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\4b36b661d64f099880ad4d09daba7508b4d13684ba360b376fb58a39ee606e1e.exe
    "C:\Users\Admin\AppData\Local\Temp\4b36b661d64f099880ad4d09daba7508b4d13684ba360b376fb58a39ee606e1e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\u1ko.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1ko.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2424
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2424 -s 2212
        3⤵
        • Program crash
        PID:1504
    • C:\Users\Admin\AppData\Local\Temp\u1ko.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u1ko.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3908
      • 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:5020
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 1156
      2⤵
      • Program crash
      PID:1776
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2040 -ip 2040
    1⤵
      PID:4648
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2424 -ip 2424
      1⤵
        PID:1568

      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\u1ko.0.exe

        Filesize

        231KB

        MD5

        7ef8dd4292b7d2ece55b9db53d22ed30

        SHA1

        6d9316eccdc762e694ebb2950057ddb672a80953

        SHA256

        f9ad11b6e4e476c6322766fad52633e3d7419ba96b74899188c26b5b669ff18b

        SHA512

        5f154d79b1df078c95529a48c478771fae9330d47f8abc73a7e68978718fef3793904f3830621d53dc68b86dae53a540bc809da24495696ae5304d91350fa80c

      • C:\Users\Admin\AppData\Local\Temp\u1ko.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/2040-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2040-2-0x00000000042B0000-0x000000000431C000-memory.dmp

        Filesize

        432KB

      • memory/2040-29-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2040-28-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/2040-1-0x0000000002650000-0x0000000002750000-memory.dmp

        Filesize

        1024KB

      • memory/2424-30-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/2424-114-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/2424-173-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/2424-26-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/3908-115-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3908-127-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/5020-134-0x00000168E0B50000-0x00000168E0B5A000-memory.dmp

        Filesize

        40KB

      • memory/5020-145-0x00000168FDAB0000-0x00000168FDAB8000-memory.dmp

        Filesize

        32KB

      • memory/5020-132-0x00000168E0AB0000-0x00000168E0AC4000-memory.dmp

        Filesize

        80KB

      • memory/5020-133-0x00000168E0B20000-0x00000168E0B44000-memory.dmp

        Filesize

        144KB

      • memory/5020-131-0x00000168E0AC0000-0x00000168E0ACC000-memory.dmp

        Filesize

        48KB

      • memory/5020-136-0x00000168F96C0000-0x00000168F9772000-memory.dmp

        Filesize

        712KB

      • memory/5020-135-0x00000168F9370000-0x00000168F939A000-memory.dmp

        Filesize

        168KB

      • memory/5020-137-0x00000168F9400000-0x00000168F9450000-memory.dmp

        Filesize

        320KB

      • memory/5020-138-0x00000168F93D0000-0x00000168F93F2000-memory.dmp

        Filesize

        136KB

      • memory/5020-139-0x00000168E0970000-0x00000168E097A000-memory.dmp

        Filesize

        40KB

      • memory/5020-143-0x00000168F9770000-0x00000168F9A70000-memory.dmp

        Filesize

        3.0MB

      • memory/5020-130-0x00000168E0AA0000-0x00000168E0AB0000-memory.dmp

        Filesize

        64KB

      • memory/5020-147-0x00000168FDAC0000-0x00000168FDACE000-memory.dmp

        Filesize

        56KB

      • memory/5020-146-0x00000168FDB00000-0x00000168FDB38000-memory.dmp

        Filesize

        224KB

      • memory/5020-149-0x00000168FDAD0000-0x00000168FDAD8000-memory.dmp

        Filesize

        32KB

      • memory/5020-151-0x00000168805A0000-0x0000016880602000-memory.dmp

        Filesize

        392KB

      • memory/5020-150-0x0000016880580000-0x000001688058A000-memory.dmp

        Filesize

        40KB

      • memory/5020-152-0x0000016880300000-0x0000016880322000-memory.dmp

        Filesize

        136KB

      • memory/5020-153-0x0000016880B30000-0x0000016881058000-memory.dmp

        Filesize

        5.2MB

      • memory/5020-156-0x0000016880320000-0x000001688032C000-memory.dmp

        Filesize

        48KB

      • memory/5020-157-0x00000168FE020000-0x00000168FE096000-memory.dmp

        Filesize

        472KB

      • memory/5020-162-0x00000168FDB40000-0x00000168FDB5E000-memory.dmp

        Filesize

        120KB

      • memory/5020-129-0x00000168F9460000-0x00000168F956A000-memory.dmp

        Filesize

        1.0MB

      • memory/5020-128-0x00000168DB390000-0x00000168DEBC4000-memory.dmp

        Filesize

        56.2MB