Analysis

  • max time kernel
    161s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    19-01-2022 08:10

General

  • Target

    7zS850A099E/61e74fd41f841_Tue2365aa82b7.exe

  • Size

    267KB

  • MD5

    9e967a473010b430f5bde8d23b0cb9a6

  • SHA1

    eed882f8ff642d0da9e89371e3ce75c1be317ad2

  • SHA256

    66b03cc7950fb0df8607d07c4bdd45c74d2da333dcdbd97c5192c8b36b5ce039

  • SHA512

    8916a36c24da3ef89066e226179e32ac3714ad72965e42f14fd38c6387c61c82118e519633f3ba628f5d3d5a45d237bdca7d6325d22599b2948503b0f2866fb7

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 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 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7zS850A099E\61e74fd41f841_Tue2365aa82b7.exe
    "C:\Users\Admin\AppData\Local\Temp\7zS850A099E\61e74fd41f841_Tue2365aa82b7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1212
    • C:\Users\Admin\AppData\Local\Temp\7zS850A099E\61e74fd41f841_Tue2365aa82b7.exe
      "C:\Users\Admin\AppData\Local\Temp\7zS850A099E\61e74fd41f841_Tue2365aa82b7.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1680

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1212-57-0x0000000000030000-0x0000000000039000-memory.dmp
    Filesize

    36KB

  • memory/1212-55-0x0000000000020000-0x0000000000029000-memory.dmp
    Filesize

    36KB

  • memory/1416-59-0x00000000026B0000-0x00000000026C6000-memory.dmp
    Filesize

    88KB

  • memory/1680-54-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

  • memory/1680-56-0x0000000075891000-0x0000000075893000-memory.dmp
    Filesize

    8KB

  • memory/1680-58-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB