Malicious PDF — malware analysis report

Static analysis result for SHA-256 c52887c28f51b73d…

MALICIOUS

PDF

44.8 KB Created: 2021-06-09 08:38:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 99b65544f6424d35609e299957af2f8b SHA-1: aa8c98db131500e930094f70aab76ee790052cc9 SHA-256: c52887c28f51b73dd66010fd001b517222fd1f78b9187c1198d96f00289535f5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links to known malicious redirectors, masquerading as "game hacks" or "generators". The primary lure is a link to a "Roblox Hack Ban" page. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect the user to a site that likely hosts further malicious content or exploits, potentially leading to client-side execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/roblox-hack-ban-game-hack In PDF document text
    • http://aviaprofsoyuz.info/images/download-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/wurst-115_GM479516143.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/1x1x1x1-roblox-id_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-robux-place_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/pubg-uc-ykleme-bedava_GM1330123889.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/get-free-coin-master-coins_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000532c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x532C 24840 bytes
SHA-256: 08392e7c8a4824d3459dedd81a70b46c270adf0097b2fe8cf160ddf922c679ba
font_01_sfnt_off00008c88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C88 18184 bytes
SHA-256: 0b762e0b809622b744cc94b275b43ecceaf97b24ffb4fa7bd3dd59947b9201bb

Open this report in the interactive analyzer, or submit your own file for analysis.