Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-05-2024 07:02

General

  • Target

    516261b7c2646ce71cb0c0f4b68c7750785d7cc09f5ccb0d31e5b7fc6d2b69ef.exe

  • Size

    367KB

  • MD5

    2c733b8cbc1c9175383cd2fa3a3c9f43

  • SHA1

    410dc497286ce12e82df27ec84d941c0d60df22a

  • SHA256

    516261b7c2646ce71cb0c0f4b68c7750785d7cc09f5ccb0d31e5b7fc6d2b69ef

  • SHA512

    33e56a5b6f03f4f9e323eb220c4c33bfee82dd05e76c0a88b1c92b8ffdd6cfc4713badb0588317e22cf4ad44178e891f0363a7faef667fd6d24ad63153d70560

  • SSDEEP

    6144:Jfvea1snS42x5pK0JcR4DypPotYhIiMuiEIMmH8d/zKXT8g/:Bvea1snS425K0JcRhuNiMEO8pe8g/

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
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • 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 28 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\516261b7c2646ce71cb0c0f4b68c7750785d7cc09f5ccb0d31e5b7fc6d2b69ef.exe
    "C:\Users\Admin\AppData\Local\Temp\516261b7c2646ce71cb0c0f4b68c7750785d7cc09f5ccb0d31e5b7fc6d2b69ef.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2936
    • C:\Users\Admin\AppData\Local\Temp\u29k.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u29k.0.exe"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3764
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 1296
        3⤵
        • Program crash
        PID:4292
    • C:\Users\Admin\AppData\Local\Temp\u29k.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u29k.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:3336
      • 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:2644
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2936 -s 1092
      2⤵
      • Program crash
      PID:3164
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2936 -ip 2936
    1⤵
      PID:2648
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3764 -ip 3764
      1⤵
        PID:4828

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\u29k.0.exe

        Filesize

        226KB

        MD5

        6891c527d4d65692716c149981e770ff

        SHA1

        ac4ba0be44795c437f860d710bdd0e3157d17caf

        SHA256

        b37a558c37740094e51a1b04fa05280e3f28b2592f5881d96ae5f5a05e2c5902

        SHA512

        1195f321c53df745aec5350e606293507f89e8f3dce3b1c58244f6a6eb9de5cdacdc222960663f7b3e03be69804bbbf8905764c2d1a21dc745e21edba9112e15

      • C:\Users\Admin\AppData\Local\Temp\u29k.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/2644-88-0x0000029B3C350000-0x0000029B3C3B2000-memory.dmp

        Filesize

        392KB

      • memory/2644-95-0x0000029B3C140000-0x0000029B3C15E000-memory.dmp

        Filesize

        120KB

      • memory/2644-74-0x0000029B36D50000-0x0000029B36E02000-memory.dmp

        Filesize

        712KB

      • memory/2644-99-0x0000029B3C0E0000-0x0000029B3C110000-memory.dmp

        Filesize

        192KB

      • memory/2644-75-0x0000029B36E00000-0x0000029B36E50000-memory.dmp

        Filesize

        320KB

      • memory/2644-94-0x0000029B3C1E0000-0x0000029B3C256000-memory.dmp

        Filesize

        472KB

      • memory/2644-93-0x0000029B3C0D0000-0x0000029B3C0DC000-memory.dmp

        Filesize

        48KB

      • memory/2644-90-0x0000029B3C8E0000-0x0000029B3CE08000-memory.dmp

        Filesize

        5.2MB

      • memory/2644-89-0x0000029B3C0B0000-0x0000029B3C0D2000-memory.dmp

        Filesize

        136KB

      • memory/2644-87-0x0000029B3C330000-0x0000029B3C33A000-memory.dmp

        Filesize

        40KB

      • memory/2644-65-0x0000029B189F0000-0x0000029B1C224000-memory.dmp

        Filesize

        56.2MB

      • memory/2644-67-0x0000029B36B00000-0x0000029B36C0A000-memory.dmp

        Filesize

        1.0MB

      • memory/2644-68-0x0000029B1DE70000-0x0000029B1DE80000-memory.dmp

        Filesize

        64KB

      • memory/2644-76-0x0000029B369C0000-0x0000029B369E2000-memory.dmp

        Filesize

        136KB

      • memory/2644-70-0x0000029B1DFA0000-0x0000029B1DFB4000-memory.dmp

        Filesize

        80KB

      • memory/2644-71-0x0000029B36910000-0x0000029B36934000-memory.dmp

        Filesize

        144KB

      • memory/2644-72-0x0000029B367C0000-0x0000029B367CA000-memory.dmp

        Filesize

        40KB

      • memory/2644-73-0x0000029B36960000-0x0000029B3698A000-memory.dmp

        Filesize

        168KB

      • memory/2644-86-0x0000029B3B1B0000-0x0000029B3B1B8000-memory.dmp

        Filesize

        32KB

      • memory/2644-85-0x0000029B3B190000-0x0000029B3B19E000-memory.dmp

        Filesize

        56KB

      • memory/2644-69-0x0000029B367A0000-0x0000029B367AC000-memory.dmp

        Filesize

        48KB

      • memory/2644-77-0x0000029B36940000-0x0000029B3694A000-memory.dmp

        Filesize

        40KB

      • memory/2644-81-0x0000029B36E50000-0x0000029B37150000-memory.dmp

        Filesize

        3.0MB

      • memory/2644-83-0x0000029B3B880000-0x0000029B3B888000-memory.dmp

        Filesize

        32KB

      • memory/2644-84-0x0000029B3B1C0000-0x0000029B3B1F8000-memory.dmp

        Filesize

        224KB

      • memory/2936-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2936-2-0x0000000001BD0000-0x0000000001C3C000-memory.dmp

        Filesize

        432KB

      • memory/2936-31-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2936-1-0x0000000001C50000-0x0000000001D50000-memory.dmp

        Filesize

        1024KB

      • memory/2936-30-0x0000000000400000-0x0000000001A26000-memory.dmp

        Filesize

        22.1MB

      • memory/3336-52-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3336-64-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3764-106-0x0000000000400000-0x0000000001A03000-memory.dmp

        Filesize

        22.0MB

      • memory/3764-14-0x0000000000400000-0x0000000001A03000-memory.dmp

        Filesize

        22.0MB

      • memory/3764-97-0x0000000000400000-0x0000000001A03000-memory.dmp

        Filesize

        22.0MB

      • memory/3764-15-0x0000000000400000-0x0000000001A03000-memory.dmp

        Filesize

        22.0MB

      • memory/3764-102-0x0000000000400000-0x0000000001A03000-memory.dmp

        Filesize

        22.0MB

      • memory/3764-13-0x0000000000400000-0x0000000001A03000-memory.dmp

        Filesize

        22.0MB

      • memory/3764-110-0x0000000000400000-0x0000000001A03000-memory.dmp

        Filesize

        22.0MB