Analysis

  • max time kernel
    151s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-10-2023 19:24

General

  • Target

    NEAS.a75e3f3e506051b9e4313a407c2a993f9d662a142f2ec6265edeca16511bc115exe_JC.exe

  • Size

    3.4MB

  • MD5

    8b6693a9fd8f3a9ca63e933c7e1284bc

  • SHA1

    94fe1a59213d6cb266e5e6b8761b9b7a45512e1f

  • SHA256

    a75e3f3e506051b9e4313a407c2a993f9d662a142f2ec6265edeca16511bc115

  • SHA512

    882ffd091cae2a658cb5b992a3c3c8e06519bedcee1ed629b4d933bfbea2e32531e04519ca76f450a4a014bf851360cb56d72c7bd2c13907c308b26fa0a0a2e9

  • SSDEEP

    49152:Q5qWhABbYQFw/3MywBAfm079cyxuc5BhBKiJ+av9kgzr0dt1cOZaX:ZWhEywBgm0OQ5BhkivHr0bps

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://servermlogs27.xyz/statweb255/

http://servmblog45.xyz/statweb255/

http://demblog575.xyz/statweb255/

http://admlogs85x.xyz/statweb255/

http://blogmstat389.xyz/statweb255/

http://blogmstat255.xyz/statweb255/

rc4.i32
rc4.i32

Signatures

  • Detect rhadamanthys stealer shellcode 6 IoCs
  • Rhadamanthys

    Rhadamanthys is an info stealer written in C++ first seen in August 2022.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
  • 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.

  • Suspicious use of SetThreadContext 2 IoCs
  • 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 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    PID:3232
    • C:\Users\Admin\AppData\Local\Temp\NEAS.a75e3f3e506051b9e4313a407c2a993f9d662a142f2ec6265edeca16511bc115exe_JC.exe
      "C:\Users\Admin\AppData\Local\Temp\NEAS.a75e3f3e506051b9e4313a407c2a993f9d662a142f2ec6265edeca16511bc115exe_JC.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Users\Admin\AppData\Local\Temp\NEAS.a75e3f3e506051b9e4313a407c2a993f9d662a142f2ec6265edeca16511bc115exe_JC.exe
        C:\Users\Admin\AppData\Local\Temp\NEAS.a75e3f3e506051b9e4313a407c2a993f9d662a142f2ec6265edeca16511bc115exe_JC.exe
        3⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2736
    • C:\Windows\system32\certreq.exe
      "C:\Windows\system32\certreq.exe"
      2⤵
      • Deletes itself
      • Accesses Microsoft Outlook profiles
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • outlook_office_path
      • outlook_win_path
      PID:2908
  • C:\Users\Admin\AppData\Local\Microsoft\TNL0(.exe
    "C:\Users\Admin\AppData\Local\Microsoft\TNL0(.exe"
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1940
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Microsoft\TNL0(.exe" & del "C:\ProgramData\*.dll"" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4532
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • Delays execution with timeout.exe
        PID:1820
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 2432
      2⤵
      • Program crash
      PID:4196
  • C:\Users\Admin\AppData\Local\Microsoft\736oNTd`.exe
    "C:\Users\Admin\AppData\Local\Microsoft\736oNTd`.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3152
    • C:\Users\Admin\AppData\Local\Microsoft\736oNTd`.exe
      C:\Users\Admin\AppData\Local\Microsoft\736oNTd`.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3944
  • C:\Users\Admin\AppData\Local\Microsoft\4rN8_.exe
    "C:\Users\Admin\AppData\Local\Microsoft\4rN8_.exe"
    1⤵
    • Executes dropped EXE
    PID:2268
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 1940 -ip 1940
    1⤵
      PID:376

    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\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\Microsoft\4rN8_.exe

      Filesize

      968KB

      MD5

      2a40a56b3dbe361864baac57a7815de4

      SHA1

      a0b67c7eb5bb378010ada7a3cf6bfe4101df9049

      SHA256

      3d62c31dd2a3749a264d72bd87c287c9367d3198d612c5566ca54809b714af99

      SHA512

      6c426f00cac5bbf67fd6e56c95561b8ad94da32d1199cfbf5d9e3b2627b39cdf8e089856fd346a44097006a0f32a78480b32554f39ba4ceaf72182126f78e4b2

    • C:\Users\Admin\AppData\Local\Microsoft\4rN8_.exe

      Filesize

      968KB

      MD5

      2a40a56b3dbe361864baac57a7815de4

      SHA1

      a0b67c7eb5bb378010ada7a3cf6bfe4101df9049

      SHA256

      3d62c31dd2a3749a264d72bd87c287c9367d3198d612c5566ca54809b714af99

      SHA512

      6c426f00cac5bbf67fd6e56c95561b8ad94da32d1199cfbf5d9e3b2627b39cdf8e089856fd346a44097006a0f32a78480b32554f39ba4ceaf72182126f78e4b2

    • C:\Users\Admin\AppData\Local\Microsoft\736oNTd`.exe

      Filesize

      1.1MB

      MD5

      98b5d4c4e238d202f81cffde25e7c836

      SHA1

      b5b0021e9e7c52e04f415513ac5b43f290aea314

      SHA256

      d1c3c5ff607fa74bedc942818fe4f7b202d7887073a62577f4f1b31375c23b13

      SHA512

      16b762660ba60a1af48705fc39e07de58f94a64b461c353dc60b19844c69aeb25dcdd29ce1c97295cc82e4fa7bdb1be311faa719462c7a7ef78a7c97341c21b6

    • C:\Users\Admin\AppData\Local\Microsoft\736oNTd`.exe

      Filesize

      1.1MB

      MD5

      98b5d4c4e238d202f81cffde25e7c836

      SHA1

      b5b0021e9e7c52e04f415513ac5b43f290aea314

      SHA256

      d1c3c5ff607fa74bedc942818fe4f7b202d7887073a62577f4f1b31375c23b13

      SHA512

      16b762660ba60a1af48705fc39e07de58f94a64b461c353dc60b19844c69aeb25dcdd29ce1c97295cc82e4fa7bdb1be311faa719462c7a7ef78a7c97341c21b6

    • C:\Users\Admin\AppData\Local\Microsoft\736oNTd`.exe

      Filesize

      1.1MB

      MD5

      98b5d4c4e238d202f81cffde25e7c836

      SHA1

      b5b0021e9e7c52e04f415513ac5b43f290aea314

      SHA256

      d1c3c5ff607fa74bedc942818fe4f7b202d7887073a62577f4f1b31375c23b13

      SHA512

      16b762660ba60a1af48705fc39e07de58f94a64b461c353dc60b19844c69aeb25dcdd29ce1c97295cc82e4fa7bdb1be311faa719462c7a7ef78a7c97341c21b6

    • C:\Users\Admin\AppData\Local\Microsoft\TNL0(.exe

      Filesize

      180KB

      MD5

      b690d4e17429538cddb6ff39d5104aa1

      SHA1

      4bfcfd51931cd1f1c7196315cd3e3ebac6c2e425

      SHA256

      2c6e833ee31a0ec3f6a61ea9aaed03cde52ea6d23b9e059d966412c54de38d34

      SHA512

      21d185bd8338a7a70ef1c2b939402395da9296774d732a16c203a24d7715d740113e8ed8027e968d6b9b213af35aab1b81a5964e3dcd0126898365a11fa6d347

    • C:\Users\Admin\AppData\Local\Microsoft\TNL0(.exe

      Filesize

      180KB

      MD5

      b690d4e17429538cddb6ff39d5104aa1

      SHA1

      4bfcfd51931cd1f1c7196315cd3e3ebac6c2e425

      SHA256

      2c6e833ee31a0ec3f6a61ea9aaed03cde52ea6d23b9e059d966412c54de38d34

      SHA512

      21d185bd8338a7a70ef1c2b939402395da9296774d732a16c203a24d7715d740113e8ed8027e968d6b9b213af35aab1b81a5964e3dcd0126898365a11fa6d347

    • memory/1940-171-0x0000000000400000-0x00000000007B5000-memory.dmp

      Filesize

      3.7MB

    • memory/1940-131-0x0000000000400000-0x00000000007B5000-memory.dmp

      Filesize

      3.7MB

    • memory/1940-75-0x0000000000900000-0x0000000000A00000-memory.dmp

      Filesize

      1024KB

    • memory/1940-76-0x00000000008E0000-0x00000000008FB000-memory.dmp

      Filesize

      108KB

    • memory/1940-80-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/1940-151-0x0000000000900000-0x0000000000A00000-memory.dmp

      Filesize

      1024KB

    • memory/1940-153-0x00000000008E0000-0x00000000008FB000-memory.dmp

      Filesize

      108KB

    • memory/1940-158-0x0000000000400000-0x00000000007B5000-memory.dmp

      Filesize

      3.7MB

    • memory/1940-77-0x0000000000400000-0x00000000007B5000-memory.dmp

      Filesize

      3.7MB

    • memory/2036-8-0x0000000006040000-0x000000000608C000-memory.dmp

      Filesize

      304KB

    • memory/2036-14-0x0000000074660000-0x0000000074E10000-memory.dmp

      Filesize

      7.7MB

    • memory/2036-0-0x0000000074660000-0x0000000074E10000-memory.dmp

      Filesize

      7.7MB

    • memory/2036-1-0x0000000000D40000-0x00000000010A2000-memory.dmp

      Filesize

      3.4MB

    • memory/2036-2-0x0000000005AA0000-0x0000000005B32000-memory.dmp

      Filesize

      584KB

    • memory/2036-3-0x0000000005BD0000-0x0000000005BE0000-memory.dmp

      Filesize

      64KB

    • memory/2036-4-0x0000000005BE0000-0x0000000005DCE000-memory.dmp

      Filesize

      1.9MB

    • memory/2036-5-0x0000000005E10000-0x0000000005E90000-memory.dmp

      Filesize

      512KB

    • memory/2036-6-0x00000000062C0000-0x0000000006328000-memory.dmp

      Filesize

      416KB

    • memory/2036-7-0x0000000005FD0000-0x0000000006038000-memory.dmp

      Filesize

      416KB

    • memory/2036-9-0x0000000074660000-0x0000000074E10000-memory.dmp

      Filesize

      7.7MB

    • memory/2036-10-0x00000000068E0000-0x0000000006E84000-memory.dmp

      Filesize

      5.6MB

    • memory/2736-32-0x0000000000400000-0x0000000000473000-memory.dmp

      Filesize

      460KB

    • memory/2736-33-0x0000000002B30000-0x0000000002F30000-memory.dmp

      Filesize

      4.0MB

    • memory/2736-11-0x0000000000400000-0x0000000000473000-memory.dmp

      Filesize

      460KB

    • memory/2736-16-0x0000000000400000-0x0000000000473000-memory.dmp

      Filesize

      460KB

    • memory/2736-17-0x0000000002910000-0x0000000002917000-memory.dmp

      Filesize

      28KB

    • memory/2736-18-0x0000000002B30000-0x0000000002F30000-memory.dmp

      Filesize

      4.0MB

    • memory/2736-19-0x0000000002B30000-0x0000000002F30000-memory.dmp

      Filesize

      4.0MB

    • memory/2736-15-0x0000000000400000-0x0000000000473000-memory.dmp

      Filesize

      460KB

    • memory/2736-20-0x0000000002B30000-0x0000000002F30000-memory.dmp

      Filesize

      4.0MB

    • memory/2736-31-0x0000000002B30000-0x0000000002F30000-memory.dmp

      Filesize

      4.0MB

    • memory/2736-30-0x0000000003970000-0x00000000039A6000-memory.dmp

      Filesize

      216KB

    • memory/2736-24-0x0000000003970000-0x00000000039A6000-memory.dmp

      Filesize

      216KB

    • memory/2736-23-0x0000000000400000-0x0000000000473000-memory.dmp

      Filesize

      460KB

    • memory/2736-21-0x0000000002B30000-0x0000000002F30000-memory.dmp

      Filesize

      4.0MB

    • memory/2908-40-0x00007FF4BB970000-0x00007FF4BBA9F000-memory.dmp

      Filesize

      1.2MB

    • memory/2908-43-0x00007FF4BB970000-0x00007FF4BBA9F000-memory.dmp

      Filesize

      1.2MB

    • memory/2908-52-0x00007FF81F2F0000-0x00007FF81F4E5000-memory.dmp

      Filesize

      2.0MB

    • memory/2908-22-0x000002C156C00000-0x000002C156C03000-memory.dmp

      Filesize

      12KB

    • memory/2908-50-0x00007FF4BB970000-0x00007FF4BBA9F000-memory.dmp

      Filesize

      1.2MB

    • memory/2908-49-0x00007FF4BB970000-0x00007FF4BBA9F000-memory.dmp

      Filesize

      1.2MB

    • memory/2908-34-0x000002C156C00000-0x000002C156C03000-memory.dmp

      Filesize

      12KB

    • memory/2908-35-0x000002C156DA0000-0x000002C156DA7000-memory.dmp

      Filesize

      28KB

    • memory/2908-36-0x00007FF4BB970000-0x00007FF4BBA9F000-memory.dmp

      Filesize

      1.2MB

    • memory/2908-37-0x00007FF4BB970000-0x00007FF4BBA9F000-memory.dmp

      Filesize

      1.2MB

    • memory/2908-38-0x00007FF4BB970000-0x00007FF4BBA9F000-memory.dmp

      Filesize

      1.2MB

    • memory/2908-39-0x00007FF4BB970000-0x00007FF4BBA9F000-memory.dmp

      Filesize

      1.2MB

    • memory/2908-51-0x00007FF4BB970000-0x00007FF4BBA9F000-memory.dmp

      Filesize

      1.2MB

    • memory/2908-48-0x00007FF4BB970000-0x00007FF4BBA9F000-memory.dmp

      Filesize

      1.2MB

    • memory/2908-41-0x00007FF4BB970000-0x00007FF4BBA9F000-memory.dmp

      Filesize

      1.2MB

    • memory/2908-44-0x00007FF4BB970000-0x00007FF4BBA9F000-memory.dmp

      Filesize

      1.2MB

    • memory/2908-47-0x00007FF4BB970000-0x00007FF4BBA9F000-memory.dmp

      Filesize

      1.2MB

    • memory/2908-46-0x00007FF81F2F0000-0x00007FF81F4E5000-memory.dmp

      Filesize

      2.0MB

    • memory/2908-45-0x00007FF4BB970000-0x00007FF4BBA9F000-memory.dmp

      Filesize

      1.2MB

    • memory/2908-78-0x000002C156DA0000-0x000002C156DA5000-memory.dmp

      Filesize

      20KB

    • memory/2908-79-0x00007FF81F2F0000-0x00007FF81F4E5000-memory.dmp

      Filesize

      2.0MB

    • memory/3152-73-0x0000000074590000-0x0000000074D40000-memory.dmp

      Filesize

      7.7MB

    • memory/3152-67-0x00000000027B0000-0x00000000027C0000-memory.dmp

      Filesize

      64KB

    • memory/3152-68-0x0000000005C70000-0x0000000005CA2000-memory.dmp

      Filesize

      200KB

    • memory/3152-66-0x0000000005C10000-0x0000000005C42000-memory.dmp

      Filesize

      200KB

    • memory/3152-65-0x0000000005BC0000-0x0000000005C0A000-memory.dmp

      Filesize

      296KB

    • memory/3152-64-0x00000000027B0000-0x00000000027C0000-memory.dmp

      Filesize

      64KB

    • memory/3152-63-0x0000000074590000-0x0000000074D40000-memory.dmp

      Filesize

      7.7MB

    • memory/3152-60-0x00000000002D0000-0x00000000003EA000-memory.dmp

      Filesize

      1.1MB

    • memory/3232-84-0x0000000002DD0000-0x0000000002DE6000-memory.dmp

      Filesize

      88KB

    • memory/3944-90-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/3944-72-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/3944-69-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB