Analysis

  • max time kernel
    151s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/09/2023, 21:40

General

  • Target

    SecuriteInfo.com.W32.Kryptik.KMY.gen.Eldorado.22433.exe

  • Size

    267KB

  • MD5

    24dbebd26b029b6304bed121b5af43c4

  • SHA1

    6657d33ab6958b155c67cc12d55647b1b0bc28ad

  • SHA256

    9e7c8aea93412acc8d8de3a956e8485a86caf40c626b2abd491bd5404df1bfbb

  • SHA512

    470559b9db03a1b3c10a6e91a1e03c6b15979a3d754c9f2a5684a06e87a9722bd7929872fa8cb15b8c5f183fead77272e57966095b493a1b608e93130db4ddf8

  • SSDEEP

    3072:QXUMeUgFUvuQ+qOsW8gPwI0eNcCOdvriM5vVos1lRLootRbrNpm:OUMeAvuQ+qOsWttcpRriMMIS

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

C2

http://gudintas.at/tmp/

http://pik96.ru/tmp/

http://rosatiauto.com/tmp/

http://kingpirate.ru/tmp/

rc4.i32
rc4.i32

Extracted

Family

stealc

C2

http://85.209.11.51

Attributes
  • url_path

    /fefb4a458e1dc58b.php

rc4.plain

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 1 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Stealc

    Stealc is an infostealer written in C++.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 3 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 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 43 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.Kryptik.KMY.gen.Eldorado.22433.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.Kryptik.KMY.gen.Eldorado.22433.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4668
  • C:\Users\Admin\AppData\Local\Temp\1D18.exe
    C:\Users\Admin\AppData\Local\Temp\1D18.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      2⤵
        PID:3396
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2780
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe"
          3⤵
            PID:4032
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe"
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1232
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
          2⤵
          • Loads dropped DLL
          • Checks processor information in registry
          PID:4280

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • 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\1D18.exe

              Filesize

              505KB

              MD5

              3082e7832f7a31397990d4d3ae4c75c9

              SHA1

              769b150e219c7e8d7221f7a0f0ba6ef617fd036d

              SHA256

              716f6379cc32afb03ef2639b14e32b4df5538b99b84dafe355b39f8934e7c740

              SHA512

              8e371f4b075070daf8efb449ab87d923eb4d3cad74d7c9c3d3cef76f43f268c0e4aabe6fa1f801e20ac49e25f9bac70338044fbe9bd408883429ca34fb98ade4

            • C:\Users\Admin\AppData\Local\Temp\1D18.exe

              Filesize

              505KB

              MD5

              3082e7832f7a31397990d4d3ae4c75c9

              SHA1

              769b150e219c7e8d7221f7a0f0ba6ef617fd036d

              SHA256

              716f6379cc32afb03ef2639b14e32b4df5538b99b84dafe355b39f8934e7c740

              SHA512

              8e371f4b075070daf8efb449ab87d923eb4d3cad74d7c9c3d3cef76f43f268c0e4aabe6fa1f801e20ac49e25f9bac70338044fbe9bd408883429ca34fb98ade4

            • memory/1232-116-0x000000000BB60000-0x000000000BBD6000-memory.dmp

              Filesize

              472KB

            • memory/1232-113-0x0000000008A00000-0x0000000008A3C000-memory.dmp

              Filesize

              240KB

            • memory/1232-119-0x000000000BCE0000-0x000000000BCFE000-memory.dmp

              Filesize

              120KB

            • memory/1232-117-0x000000000BDB0000-0x000000000BF72000-memory.dmp

              Filesize

              1.8MB

            • memory/1232-120-0x00000000032D0000-0x0000000003320000-memory.dmp

              Filesize

              320KB

            • memory/1232-115-0x00000000092E0000-0x0000000009346000-memory.dmp

              Filesize

              408KB

            • memory/1232-114-0x0000000008A40000-0x0000000008A8C000-memory.dmp

              Filesize

              304KB

            • memory/1232-118-0x000000000C4B0000-0x000000000C9DC000-memory.dmp

              Filesize

              5.2MB

            • memory/1232-112-0x0000000008B00000-0x0000000008C0A000-memory.dmp

              Filesize

              1.0MB

            • memory/1232-111-0x00000000089A0000-0x00000000089B2000-memory.dmp

              Filesize

              72KB

            • memory/1232-110-0x0000000009870000-0x0000000009E88000-memory.dmp

              Filesize

              6.1MB

            • memory/1232-109-0x0000000008920000-0x0000000008930000-memory.dmp

              Filesize

              64KB

            • memory/1232-108-0x0000000074880000-0x0000000075030000-memory.dmp

              Filesize

              7.7MB

            • memory/1232-105-0x0000000000400000-0x000000000045A000-memory.dmp

              Filesize

              360KB

            • memory/1232-122-0x0000000074880000-0x0000000075030000-memory.dmp

              Filesize

              7.7MB

            • memory/2044-20-0x00000000059F0000-0x00000000059FA000-memory.dmp

              Filesize

              40KB

            • memory/2044-19-0x0000000005A20000-0x0000000005A30000-memory.dmp

              Filesize

              64KB

            • memory/2044-15-0x0000000000AA0000-0x0000000000B22000-memory.dmp

              Filesize

              520KB

            • memory/2044-16-0x0000000074880000-0x0000000075030000-memory.dmp

              Filesize

              7.7MB

            • memory/2044-17-0x0000000005E10000-0x00000000063B4000-memory.dmp

              Filesize

              5.6MB

            • memory/2044-18-0x0000000005860000-0x00000000058F2000-memory.dmp

              Filesize

              584KB

            • memory/2044-28-0x0000000005A20000-0x0000000005A30000-memory.dmp

              Filesize

              64KB

            • memory/2044-21-0x00000000083E0000-0x000000000847C000-memory.dmp

              Filesize

              624KB

            • memory/2044-22-0x0000000001840000-0x0000000001880000-memory.dmp

              Filesize

              256KB

            • memory/2044-23-0x0000000005A20000-0x0000000005A30000-memory.dmp

              Filesize

              64KB

            • memory/2044-24-0x0000000009870000-0x000000000988A000-memory.dmp

              Filesize

              104KB

            • memory/2044-39-0x0000000074880000-0x0000000075030000-memory.dmp

              Filesize

              7.7MB

            • memory/2044-25-0x000000000B8A0000-0x000000000B8A6000-memory.dmp

              Filesize

              24KB

            • memory/2044-27-0x0000000005A20000-0x0000000005A30000-memory.dmp

              Filesize

              64KB

            • memory/2044-26-0x0000000074880000-0x0000000075030000-memory.dmp

              Filesize

              7.7MB

            • memory/2780-32-0x00000000050D0000-0x00000000050E0000-memory.dmp

              Filesize

              64KB

            • memory/2780-31-0x0000000074880000-0x0000000075030000-memory.dmp

              Filesize

              7.7MB

            • memory/2780-29-0x0000000000400000-0x000000000044A000-memory.dmp

              Filesize

              296KB

            • memory/2780-30-0x0000000000400000-0x000000000044A000-memory.dmp

              Filesize

              296KB

            • memory/2780-35-0x00000000050D0000-0x00000000050E0000-memory.dmp

              Filesize

              64KB

            • memory/2780-34-0x00000000050D0000-0x00000000050E0000-memory.dmp

              Filesize

              64KB

            • memory/2780-107-0x0000000074880000-0x0000000075030000-memory.dmp

              Filesize

              7.7MB

            • memory/2780-33-0x0000000074880000-0x0000000075030000-memory.dmp

              Filesize

              7.7MB

            • memory/3088-4-0x0000000002C70000-0x0000000002C86000-memory.dmp

              Filesize

              88KB

            • memory/4280-40-0x0000000061E00000-0x0000000061EF3000-memory.dmp

              Filesize

              972KB

            • memory/4280-36-0x0000000000400000-0x000000000062D000-memory.dmp

              Filesize

              2.2MB

            • memory/4280-38-0x0000000000400000-0x000000000062D000-memory.dmp

              Filesize

              2.2MB

            • memory/4668-1-0x0000000000B10000-0x0000000000C10000-memory.dmp

              Filesize

              1024KB

            • memory/4668-5-0x0000000000400000-0x0000000000711000-memory.dmp

              Filesize

              3.1MB

            • memory/4668-3-0x0000000000AC0000-0x0000000000AC9000-memory.dmp

              Filesize

              36KB

            • memory/4668-2-0x0000000000400000-0x0000000000711000-memory.dmp

              Filesize

              3.1MB