Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a2206c5684119ea…

MALICIOUS

PDF

45.8 KB Created: 2021-05-19 22:19:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 83c3d743084c6ec799c8376f05acadff SHA-1: ad8044f300eec81603e4d11b95ec067382a3977a SHA-256: 7a2206c5684119ea5c0468363b52f0abecc5bd29ae4456640c1b03206642fcb8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirector infrastructure, specifically advertising 'free generators' and 'game hacks' for popular games like Coin Master and Roblox. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to lure users to potentially malicious websites. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious redirection as the primary attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-attack-link-game-hack In PDF document text
    • https://donrazvitie.ru/images/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/minecraft-server-free-trial_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/rich-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/coin-master-new-link-free-spin_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b1f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B1F 25388 bytes
SHA-256: 3fc7758596ec58f7c91e0ffadc05c00f64beab6a881fc8f6ca0f86a7889630f9
font_01_sfnt_off00008603.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8603 3500 bytes
SHA-256: ce2ea41c9dba7994031e0885d2822ae8c289e52c46d0b59f9816674228cb600c
font_02_sfnt_off000091a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91A4 17880 bytes
SHA-256: 96402d2e96280801386aa337121127c59561cdc8f458ec32dbe1421b57db916e

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