Analysis

  • max time kernel
    150s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    04-03-2023 02:49

General

  • Target

    setup.exe

  • Size

    180KB

  • MD5

    3baff49880d4a265002447861a7670a1

  • SHA1

    6b0d680b7adf84e17b74ba4f54e655cae0f2370e

  • SHA256

    2f7759c1049b9942d5b12bc6445be9fab02fb8abc7ef609c1d017782dda302e3

  • SHA512

    c1fe8d6531fd188cdb0b04378da6de23ffc5034120229b8670703fb1c2bd34f40f5eb40f4c340757b4ecc217b8c8cc94356ae23c45b866ee83d2a67b9a071036

  • SSDEEP

    3072:XFunGFxI34CJFLQBTxhXxVXJG5td3gud1uu7GvDWYcKsjAXPSQ:snEx24CJ2xhXPs5MSuu7gfPsj

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

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

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

rc4.i32
rc4.i32

Signatures

  • Detects Smokeloader packer 4 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • 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: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\setup.exe
    "C:\Users\Admin\AppData\Local\Temp\setup.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2012
    • C:\Users\Admin\AppData\Local\Temp\setup.exe
      "C:\Users\Admin\AppData\Local\Temp\setup.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1700

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1268-59-0x0000000002A30000-0x0000000002A46000-memory.dmp

    Filesize

    88KB

  • memory/1700-55-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1700-56-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1700-58-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1700-60-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2012-57-0x0000000000240000-0x0000000000249000-memory.dmp

    Filesize

    36KB