Overview

overview

10

Static

static

8

0c8e4aa60d...07.exe

windows7_x64

10

0c8e4aa60d...07.exe

windows10_x64

10

Analysis

  • max time kernel
    38s
  • max time network
    70s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    29-12-2020 07:46

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General

  • Target

    0c8e4aa60d747e6cd2b7620d94aa0807.exe

  • Size

    154KB

  • MD5

    0c8e4aa60d747e6cd2b7620d94aa0807

  • SHA1

    8160a630e552f81f863f5500d2718b161b268a2f

  • SHA256

    19675bca8b5bd178071602a07aabf48c756f0405afb9611c504d068c9c2fead0

  • SHA512

    b4db9f97010738ca64fe34b51cce06eddfcbb5c12fe4bf0599db946874b49e9f14ab56e9b92d67af1d054272573cf06af543358f1ce1229b5a26847e294c6bbd

Score
10/10
smokeloaderbackdoortrojanupx

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://vtdilet.com/upload/

http://netvxi.com/upload/

http://tinnys.monster/upload/
rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 572 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0c8e4aa60d747e6cd2b7620d94aa0807.exe
    "C:\Users\Admin\AppData\Local\Temp\0c8e4aa60d747e6cd2b7620d94aa0807.exe"
    1⤵
    • Loads dropped DLL
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:3008
  • C:\Users\Admin\AppData\Local\Temp\84F5.exe
    C:\Users\Admin\AppData\Local\Temp\84F5.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:204
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C reg add "HKEY_CURRENT_USER\Software\NetHelper" /v path /t REG_SZ /d C:\ProgramData\NetHelper\Cache\VKDdxMkiagZuGWwGTvzp /f
      2⤵
        PID:3560
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C timeout /t 60 && SCHTASKS /Create /SC MINUTE /MO 1 /TN "Service for windows Network Helper updates" /TR C:\ProgramData\NetHelper\Cache\VKDdxMkiagZuGWwGTvzp\$Önethelper.exe /F
        2⤵
          PID:3124

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Initial Access

      Execution

      Persistence

      Privilege Escalation

      Defense Evasion

      Credential Access

      Discovery

      Query Registry

      1
      T1012

      Peripheral Device Discovery

      1
      T1120

      System Information Discovery

      1
      T1082

      Lateral Movement

      Collection

      Exfiltration

      Command and Control

      Impact

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\84F5.exe
        MD5

        57a9c6d1f80eec2792d26d5903a9228b

        SHA1

        15455de7cb21d125651d9cf88b23af2953bfa96f

        SHA256

        b33cc87f7974c98429bcf0396527bb81c97bb11eb143257e9e1196d685949120

        SHA512

        0f1b1e42bba286c6b5d08571c97d770c287eff5249acef52809640a0e55a67711331e5adaaa6dae89ea16e817f29fd59da2bf0ff66864f53279cb834f112a280

        Download Submit
      • C:\Users\Admin\AppData\Local\Temp\84F5.exe
        MD5

        57a9c6d1f80eec2792d26d5903a9228b

        SHA1

        15455de7cb21d125651d9cf88b23af2953bfa96f

        SHA256

        b33cc87f7974c98429bcf0396527bb81c97bb11eb143257e9e1196d685949120

        SHA512

        0f1b1e42bba286c6b5d08571c97d770c287eff5249acef52809640a0e55a67711331e5adaaa6dae89ea16e817f29fd59da2bf0ff66864f53279cb834f112a280

        Download Submit
      • \Users\Admin\AppData\Local\Temp\CC4F.tmp
        MD5

        50741b3f2d7debf5d2bed63d88404029

        SHA1

        56210388a627b926162b36967045be06ffb1aad3

        SHA256

        f2f8732ae464738372ff274b7e481366cecdd2337210d4a3cbcd089c958a730c

        SHA512

        fac6bfe35b1ee08b3d42d330516a260d9cdb4a90bbb0491411a583029b92a59d20af3552372ea8fb3f59442b3945bf524ef284127f397ae7179467080be8e9b3

        Download Submit
      • memory/204-6-0x0000000000000000-mapping.dmp
        Download
      • memory/204-10-0x0000000005270000-0x0000000005271000-memory.dmp
        Filesize

        4KB

        Download
      • memory/2312-5-0x00000000008B0000-0x00000000008C6000-memory.dmp
        Filesize

        88KB

        Download
      • memory/3008-2-0x0000000004E26000-0x0000000004E27000-memory.dmp
        Filesize

        4KB

        Download
      • memory/3008-3-0x0000000005310000-0x0000000005311000-memory.dmp
        Filesize

        4KB

        Download
      • memory/3124-12-0x0000000000000000-mapping.dmp
        Download
      • memory/3560-11-0x0000000000000000-mapping.dmp
        Download