Malicious PDF — malware analysis report

Static analysis result for SHA-256 85f0cb4640a09d6f…

MALICIOUS

PDF

44.5 KB Created: 2021-05-16 23:39:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8113e719f2dda47bdecea81abeba7821 SHA-1: dd368f765a2a061a3c8bee2457c2c1e93e57a343 SHA-256: 85f0cb4640a09d6fcec7fb793fb0654f983581d84c8e9171c9ac20f7e74e634e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links to known malicious redirectors, specifically targeting users with lures related to game hacks and free generators. The heuristic firings confirm the presence of malicious redirector links and a lure for free generators. The document body, though partially obfuscated, also contains URLs that are likely part of this malicious distribution chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/431946152/roblox-pics-game-hack In PDF document text
    • https://ambarevleri.com/images/coin-master-hack-version-download-ios_GM406889139.pdfIn PDF document text
    • https://ambarevleri.com/images/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
    • https://ambarevleri.com/images/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://ambarevleri.com/images/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • https://ambarevleri.com/images/wurst-download_GM479516143.pdfIn PDF document text
    • https://ambarevleri.com/images/coin-master-link_GM406889139.pdfIn PDF document text
    • https://ambarevleri.com/images/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • https://ambarevleri.com/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://ambarevleri.com/images/how-to-give-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://ambarevleri.com/images/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://ambarevleri.com/images/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://ambarevleri.com/images/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://ambarevleri.com/images/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • https://ambarevleri.com/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://ambarevleri.com/images/cone-master_GM406889139.pdfIn PDF document text
    • https://ambarevleri.com/images/coin-master-pet-food-hack_GM406889139.pdfIn PDF document text
    • https://ambarevleri.com/images/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • https://ambarevleri.com/images/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://ambarevleri.com/images/install-free-game-coin-master_GM406889139.pdfIn PDF document text
    • https://ambarevleri.com/images/spinuri-gratis-coin-master_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_off000048ab.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48AB 25504 bytes
SHA-256: 809f73dca0e5466ed1f4438ef5c903a52b03cebd5f9c71a65a6c97a49ee76367
font_01_sfnt_off00008240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8240 2820 bytes
SHA-256: d88f25cfe237a714f996150a11dd8a058f0f7c3e9d1ae91c17b46c10409b6c0b
font_02_sfnt_off00008bdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BDB 18060 bytes
SHA-256: 4ad043eb0dd1568e4a2653429ea485ab96dada409891d91a29e15aee7c370b08

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