Analysis

  • max time kernel
    128s
  • max time network
    129s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    06-05-2024 12:18

General

  • Target

    2a1cd81df3daa51669d6535bf5389d9eda80da154fce446f525ec4dd11d10b36.exe

  • Size

    416KB

  • MD5

    a2b1361249f3a5f11410fb6588cf88d8

  • SHA1

    285ea7b4964846712fb1159ee201eb526c3e15d9

  • SHA256

    2a1cd81df3daa51669d6535bf5389d9eda80da154fce446f525ec4dd11d10b36

  • SHA512

    fe321836a8bff5b332c55646be52235a8361ac22e64a1b1b79157f9c85bcaaf9047abefa04d5200865eaf7a8b279d9fbf45d827466912a55d335b8b44574c16c

  • SSDEEP

    6144:f/sljtGLGm0LFOvzmqUW8TcCovExfTp87gctz9Cc1jUyBnxeLDYtaZl:f/sljMLnmgSSecCmgpyz9C2/nO0tcl

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 1 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\2a1cd81df3daa51669d6535bf5389d9eda80da154fce446f525ec4dd11d10b36.exe
    "C:\Users\Admin\AppData\Local\Temp\2a1cd81df3daa51669d6535bf5389d9eda80da154fce446f525ec4dd11d10b36.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3380
    • C:\Users\Admin\AppData\Local\Temp\u2lw.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u2lw.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1932
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1932 -s 2448
        3⤵
        • Program crash
        PID:2848
    • C:\Users\Admin\AppData\Local\Temp\u2lw.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u2lw.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3428
      • 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:4468
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1932 -ip 1932
    1⤵
      PID:1976

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    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

      e2df3d2f7d62f2202c7849659b1648ab

      SHA1

      15779f7d371f97647a9b718ac748e961c446b1b4

      SHA256

      aab50eed2a7d6098aa346a7aad7cbb1e5219a56bc1f5f1140193d21746ef55d3

      SHA512

      09792533057fb311d7a3cc832c2695ea16fccac5eeb9d8d3ebc08b291c020cc095537e45a41194a0f38420eb8c7ea3c6dc391a68c4245d6e86e264a37a03d7c0

    • C:\Users\Admin\AppData\Local\Temp\u2lw.0.exe

      Filesize

      275KB

      MD5

      9eb9464649a3e10e8aad3ce2a8e6b4f6

      SHA1

      4d8237f97a2349039f817f69ad1b0f7a317e7ade

      SHA256

      06ca216667daf350f1b6e97e7205b0dafe3e0e27a57ce368fe998504e766791f

      SHA512

      bb7741c17431b75a048778d00078f18f8dc0f79a2ee2386bf57eabfe8b1058015abfdf45ff667955363f5f5afd1b6d7a6754ca13b48e731d4ddc6d69cf1b2355

    • C:\Users\Admin\AppData\Local\Temp\u2lw.1.exe

      Filesize

      4.6MB

      MD5

      397926927bca55be4a77839b1c44de6e

      SHA1

      e10f3434ef3021c399dbba047832f02b3c898dbd

      SHA256

      4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

      SHA512

      cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

    • memory/1932-13-0x0000000000400000-0x0000000001A0F000-memory.dmp

      Filesize

      22.1MB

    • memory/1932-15-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/1932-14-0x0000000000400000-0x0000000001A0F000-memory.dmp

      Filesize

      22.1MB

    • memory/1932-124-0x0000000000400000-0x0000000001A0F000-memory.dmp

      Filesize

      22.1MB

    • memory/3380-59-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/3380-58-0x0000000000400000-0x0000000001A32000-memory.dmp

      Filesize

      22.2MB

    • memory/3380-1-0x0000000001CB0000-0x0000000001DB0000-memory.dmp

      Filesize

      1024KB

    • memory/3380-2-0x0000000003750000-0x00000000037BC000-memory.dmp

      Filesize

      432KB

    • memory/3380-3-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/3428-126-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB

    • memory/3428-138-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB

    • memory/4468-143-0x000001A701D00000-0x000001A701D14000-memory.dmp

      Filesize

      80KB

    • memory/4468-148-0x000001A71AAF0000-0x000001A71AB6A000-memory.dmp

      Filesize

      488KB

    • memory/4468-141-0x000001A701CF0000-0x000001A701D00000-memory.dmp

      Filesize

      64KB

    • memory/4468-139-0x000001A77DF80000-0x000001A781878000-memory.dmp

      Filesize

      57.0MB

    • memory/4468-144-0x000001A71A670000-0x000001A71A694000-memory.dmp

      Filesize

      144KB

    • memory/4468-142-0x000001A701D10000-0x000001A701D1C000-memory.dmp

      Filesize

      48KB

    • memory/4468-145-0x000001A71A690000-0x000001A71A69A000-memory.dmp

      Filesize

      40KB

    • memory/4468-146-0x000001A71AA10000-0x000001A71AA3A000-memory.dmp

      Filesize

      168KB

    • memory/4468-147-0x000001A71AA40000-0x000001A71AAF2000-memory.dmp

      Filesize

      712KB

    • memory/4468-150-0x000001A781900000-0x000001A781976000-memory.dmp

      Filesize

      472KB

    • memory/4468-149-0x000001A71AB70000-0x000001A71ABD2000-memory.dmp

      Filesize

      392KB

    • memory/4468-140-0x000001A71A7B0000-0x000001A71A8C0000-memory.dmp

      Filesize

      1.1MB

    • memory/4468-151-0x000001A701C80000-0x000001A701C8A000-memory.dmp

      Filesize

      40KB

    • memory/4468-155-0x000001A71ABD0000-0x000001A71AED0000-memory.dmp

      Filesize

      3.0MB

    • memory/4468-157-0x000001A781890000-0x000001A781898000-memory.dmp

      Filesize

      32KB

    • memory/4468-158-0x000001A781980000-0x000001A7819B8000-memory.dmp

      Filesize

      224KB

    • memory/4468-159-0x000001A7818A0000-0x000001A7818AE000-memory.dmp

      Filesize

      56KB

    • memory/4468-161-0x000001A71F010000-0x000001A71F032000-memory.dmp

      Filesize

      136KB

    • memory/4468-160-0x000001A71EFD0000-0x000001A71EFDA000-memory.dmp

      Filesize

      40KB

    • memory/4468-162-0x000001A71FBB0000-0x000001A7200D8000-memory.dmp

      Filesize

      5.2MB

    • memory/4468-165-0x000001A7819C0000-0x000001A781A10000-memory.dmp

      Filesize

      320KB

    • memory/4468-166-0x000001A71EFE0000-0x000001A71EFEC000-memory.dmp

      Filesize

      48KB

    • memory/4468-167-0x000001A781A10000-0x000001A781A32000-memory.dmp

      Filesize

      136KB

    • memory/4468-168-0x000001A7818D0000-0x000001A7818EE000-memory.dmp

      Filesize

      120KB