Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5644bc632ac60ce…

MALICIOUS

PDF

34.6 KB Created: 2021-07-08 07:04:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 33e99e8095c45308828bd714068e0d0b SHA-1: 56cb798c97c0a2bff3d254d548fba2b0d2cfb899 SHA-256: e5644bc632ac60ce33ba52c1cf3766d0102bc2747f84665a46a3249210e71117
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/479516143/free-bedrock-minecraft-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/free-robux-only-today_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/joshy-roblox-hack-virus_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-hack-any-roblox-account-mobile_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/robux-free-co_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-future-tycoon-money-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/the-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-hacked-on-march-18_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/gift-box-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-robux-apple-ipad_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-cheats-how-to-get-free-stuff_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/toradora-roblox-roblox-t-schirts-free_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-scam-text_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-400-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/google-play-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-do-you-get-free-robux-on-ipad-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F3 22404 bytes
SHA-256: 180cb229baa9a37c3decc908b07a288788a5586133aacafd8b6e850669859588
font_01_sfnt_off000063b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B3 18560 bytes
SHA-256: f19a021a5d941007fe09e9c971895504ffbc3319a114e02b8297ae24bc05196b

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