Malicious PDF — malware analysis report

Static analysis result for SHA-256 6585b51a99c5af04…

MALICIOUS

PDF

44.8 KB Created: 2021-05-15 17:37:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 0928f00d8ffc497c5a8e68a9c7df6e44 SHA-1: 519fdae61189c2665844734d1cac55a29f48bee6 SHA-256: 6585b51a99c5af04feb127180e7dbd721b6e8c2de08708719552ad60910e69a9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "free coin generator / game hack" which redirects to the malicious URL https://netcdn.xyz/app/406889139/free-coin-game-hack. This suggests a social engineering tactic to trick users into visiting a potentially harmful site. While no scripts were explicitly extracted, the PDF structure and embedded links indicate a malicious intent to redirect users to external content. The presence of multiple related PDF links further reinforces the phishing or scam nature of this document.

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/free-coin-game-hack PDF link annotation
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/free-unlimited-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/http-bitly-coin-master-free-2021-spins_GM406889139.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-daily_GM406889139.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-daily-spin-link_GM406889139.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/moonactive-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-hack-ios-download_GM406889139.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/does-roblox-premium-expire_GM431946152.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-email-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/robux-come_GM431946152.pdfIn PDF document text
    • https://elearning.man2pamekasan.sch.id/__statics/gudangsoal/files/free-robux-com-no-verification_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004eb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EB5 25288 bytes
SHA-256: e0780a390d0086748f73d86257331a1f63c16b0281f86f4191d68218647ccd58
font_01_sfnt_off000085cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CF 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F81 17380 bytes
SHA-256: a4bb5aa59a0895550ef87f0e1f62a241b9a4a4255add019176508325e4cabc72

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