Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ed689fe6b297bfc…

MALICIOUS

PDF

42.6 KB Created: 2021-05-19 03:03:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2d42b97bdbac7642e3bf07bb60e9e08c SHA-1: 8253ee0795d9189dcdd91fc973ee78582a0e2afd SHA-256: 3ed689fe6b297bfc08e8a256bded01b39a60ee1d1e9d9875f57acc92354973b4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as game hacks or generators. The primary lure is a link to 'coin-master-haktuts-game-hack', which redirects to malicious infrastructure. The document body and embedded URLs reinforce this social engineering tactic, aiming to trick users into visiting potentially harmful sites. No scripts were extracted, but the presence of multiple malicious links and the ML classifier output strongly indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-haktuts-game-hack In PDF document text
    • http://1a-vermietung.com/images/free-robux-group_GM431946152.pdfIn PDF document text
    • http://1a-vermietung.com/images/free-coins-for-planet-master-game_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/level-coin_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://1a-vermietung.com/images/300-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/roblox-moderators_GM431946152.pdfIn PDF document text
    • http://1a-vermietung.com/images/coin-master-server-hack_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://1a-vermietung.com/images/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://1a-vermietung.com/images/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • http://1a-vermietung.com/images/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://1a-vermietung.com/images/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • http://1a-vermietung.com/images/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://1a-vermietung.com/images/coin-master-mod-version-free-download-ios_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ac7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AC7 25572 bytes
SHA-256: b9026b0d7b1c6bfc8b95ae62ae50bf4a9904d5bc632b6699aed2a6268f7d71fc
font_01_sfnt_off0000858d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x858D 17856 bytes
SHA-256: 75071ac62cf1f8e63970abc485880b2afc9ed082c679e94b51aa601dbd55dd98

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