Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5d674c0671a9d0c…

MALICIOUS

PDF

37.6 KB Created: 2021-05-21 17:49:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ae1165080e29a410ca0e1de77a6ac74a SHA-1: 1de795b43838963b58b0d08fb879c6fc39c55440 SHA-256: a5d674c0671a9d0c23cb001006cf3201b6c0cca8e59f13a713fa94637b268533
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 0.7010

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-game-hack PDF link annotation
    • https://proviant.kz/images/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://proviant.kz/images/aimbot-exe-roblox_GM431946152.pdfIn PDF document text
    • https://proviant.kz/images/coin-master-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • https://proviant.kz/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://proviant.kz/images/universal-minecraft-converter-free_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_002_off00003166.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3166 24264 bytes
SHA-256: aec14b95d0a9671c6563216f59bc3f370f91d5e4c47652876ab360ec272118eb
font_01_sfnt_off000068cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68CC 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off000072b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72B7 17884 bytes
SHA-256: 7b855ef2bb944b5b370c61480927ccad63ff31bdbf820bc1f0da9d35a10f5fb2

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