Malicious PDF — malware analysis report

Static analysis result for SHA-256 c41cff512c0b4a1e…

MALICIOUS

PDF

45.2 KB Created: 2021-06-03 23:28:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7883a6260a83800726aa107740343725 SHA-1: 139131ce54899542897118456b9076ce85686552 SHA-256: c41cff512c0b4a1eb947b24e6b0b3e2735800ab795ab354a6106406d2abf8c09
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 0.9864

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 https://netcdn.online/app/406889139/hackear-coin-master-sin-verificacion-game-hack PDF link annotation
    • http://digilib.stimata.ac.id/repository/8bp-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/spin-link_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/daily-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/are-tiktok-free-views-without-verification_GM835599320.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-place_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-free-spins-link-2021-ios_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/official-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-village-3_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hack-ios-download_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/pubg-uc-carding-quora_GM1330123889.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-free-link_GM406889139.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
stream_004_off000055c7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x55C7 24884 bytes
SHA-256: e01467541621430f7593873e7b0bfe95540fb5298e48660510fd4145d06a024a
font_01_sfnt_off00008f5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F5E 17848 bytes
SHA-256: 0a8f59b95944f0c37e1e8bd09bffc7e8086f34ba5aab4310990f1b5d227b6c8b

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