Analysis

  • max time kernel
    151s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/10/2023, 15:38

General

  • Target

    NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe

  • Size

    286KB

  • MD5

    b9ea009ab46c07ed971498d131b67233

  • SHA1

    89a93ee4351aa170b00af86fc0ae718f0135bad9

  • SHA256

    878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae

  • SHA512

    78f80535f4666b96f6f9cfb9879a618f5fd7ef61a8724d169fd924367c00b0287541d039f8437e6107db88d01ed4f613087e352e4e5e854179fdc83681badd8d

  • SSDEEP

    3072:2aSr5W1ev1Weqgob3IQgl1X6M1xOyy6vQbCQq97kIi4Z:FSrAYWtVb3Q1XPvy6vQbvqdri

Malware Config

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 12 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\NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Users\Admin\AppData\Local\Temp\NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe
      "C:\Users\Admin\AppData\Local\Temp\NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1128
  • C:\Users\Admin\AppData\Roaming\tvjthju
    C:\Users\Admin\AppData\Roaming\tvjthju
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4404
    • C:\Users\Admin\AppData\Roaming\tvjthju
      C:\Users\Admin\AppData\Roaming\tvjthju
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:3844

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\tvjthju

    Filesize

    286KB

    MD5

    b9ea009ab46c07ed971498d131b67233

    SHA1

    89a93ee4351aa170b00af86fc0ae718f0135bad9

    SHA256

    878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae

    SHA512

    78f80535f4666b96f6f9cfb9879a618f5fd7ef61a8724d169fd924367c00b0287541d039f8437e6107db88d01ed4f613087e352e4e5e854179fdc83681badd8d

  • C:\Users\Admin\AppData\Roaming\tvjthju

    Filesize

    286KB

    MD5

    b9ea009ab46c07ed971498d131b67233

    SHA1

    89a93ee4351aa170b00af86fc0ae718f0135bad9

    SHA256

    878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae

    SHA512

    78f80535f4666b96f6f9cfb9879a618f5fd7ef61a8724d169fd924367c00b0287541d039f8437e6107db88d01ed4f613087e352e4e5e854179fdc83681badd8d

  • C:\Users\Admin\AppData\Roaming\tvjthju

    Filesize

    286KB

    MD5

    b9ea009ab46c07ed971498d131b67233

    SHA1

    89a93ee4351aa170b00af86fc0ae718f0135bad9

    SHA256

    878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae

    SHA512

    78f80535f4666b96f6f9cfb9879a618f5fd7ef61a8724d169fd924367c00b0287541d039f8437e6107db88d01ed4f613087e352e4e5e854179fdc83681badd8d

  • memory/1128-3-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1128-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1128-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1724-1-0x0000000002560000-0x0000000002660000-memory.dmp

    Filesize

    1024KB

  • memory/1724-2-0x0000000002530000-0x0000000002539000-memory.dmp

    Filesize

    36KB

  • memory/3124-27-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-58-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-17-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-18-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-19-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-20-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-22-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-24-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-25-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-26-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-15-0x0000000002DB0000-0x0000000002DC0000-memory.dmp

    Filesize

    64KB

  • memory/3124-28-0x00000000070F0000-0x0000000007100000-memory.dmp

    Filesize

    64KB

  • memory/3124-29-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-31-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-34-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-36-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-35-0x0000000002DB0000-0x0000000002DC0000-memory.dmp

    Filesize

    64KB

  • memory/3124-94-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3124-33-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-32-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-38-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-39-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-41-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-42-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-43-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-44-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-45-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-46-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-14-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-13-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-93-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-5-0x0000000002A40000-0x0000000002A56000-memory.dmp

    Filesize

    88KB

  • memory/3124-16-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-53-0x00000000029A0000-0x00000000029B6000-memory.dmp

    Filesize

    88KB

  • memory/3124-37-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-59-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-64-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-62-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-65-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-61-0x00000000029D0000-0x00000000029E0000-memory.dmp

    Filesize

    64KB

  • memory/3124-60-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-66-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-68-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-70-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-71-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-72-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3124-73-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-74-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-75-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3124-76-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-78-0x00000000029D0000-0x00000000029E0000-memory.dmp

    Filesize

    64KB

  • memory/3124-77-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-81-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-83-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-84-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-82-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-80-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-85-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3124-86-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-89-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-88-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-87-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-90-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-92-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3124-91-0x0000000002970000-0x0000000002980000-memory.dmp

    Filesize

    64KB

  • memory/3844-54-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/4404-50-0x0000000002610000-0x0000000002710000-memory.dmp

    Filesize

    1024KB