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Analysis

  • max time kernel
    151s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    25/04/2023, 00:27

General

  • Target

    setup.exe

  • Size

    325KB

  • MD5

    da5dfec632256722349738288be6f62e

  • SHA1

    fbc5940d0f0fdc67dbe2f874956f2aa3ddc4e0d9

  • SHA256

    3ef594babdc8bd54d6999595d70115b34828b8ee5390428af5844379c1bd0c9d

  • SHA512

    33a6d92c35385ef055d5bf66a0d7e399dbc180919e539297c25dead04069bb197621ee5ad383f51f1fe2e84617c5058bd4579f756d5f31caa147edc11550dcb4

  • SSDEEP

    6144:24iMl0cTsm0bgBX0hMRF1ZK14TGZNciAeAxp:24iG5sm0b+Eh8LKrNnGp

Malware Config

Extracted

Family

smokeloader

Botnet

pu10

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.

  • 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:884
    • 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:1116

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/884-57-0x00000000001D0000-0x00000000001D9000-memory.dmp

    Filesize

    36KB

  • memory/1116-55-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1116-56-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1116-58-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1116-60-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1336-59-0x0000000002200000-0x0000000002216000-memory.dmp

    Filesize

    88KB