Malicious PDF — malware analysis report

Static analysis result for SHA-256 d26a454a7215982f…

MALICIOUS

PDF

44.8 KB Created: 2021-05-10 13:35:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d67cb913191f86a4bab11ec64500e8c3 SHA-1: 1066ad04e321cac9022d8f099f692e54e4d91bd3 SHA-256: d26a454a7215982f3e6fc525d6959906aa571686d31b9b9640b68ff6a6dd30c0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple embedded URLs that lure users with promises of free game currency and hacks, such as 'coin-master-free-spins-link-deutsch-ios-game-hack'. The ML classifier also flagged this PDF as malicious. The presence of these lures suggests an attempt to direct users to potentially malicious websites for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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.xyz/app/406889139/coin-master-free-spins-link-deutsch-ios-game-hack PDF link annotation
    • https://slims.bakrie.ac.id/textbook/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-hack-ios_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/daily-free-coin-and-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-hack-355_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-card-hack_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/hack-coin-master-spin-apk_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-minecraft-account-reddit_GM479516143.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004950.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4950 25148 bytes
SHA-256: f55c6bcaf64dbf8934e86fc6f3e76708d9d771f1d7bc3dd02604aeedd45d60a9
font_01_sfnt_off0000825e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x825E 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008c10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C10 18528 bytes
SHA-256: 7175abba28d978b4edd32102cbe55dc5ea5b56fd80137f2bac6bd07f05acb141

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