Malicious PDF — malware analysis report

Static analysis result for SHA-256 984fbe6952aaa959…

MALICIOUS

PDF

34.3 KB Created: 2021-06-20 02:58:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 586ace86a9828cf4cc07fa2d84543d96 SHA-1: 0bda5b806b108b734a5ecd97447c19d37ee82ef8 SHA-256: 984fbe6952aaa959313d019ef9516f8842c7caf7b3dbe585c7c793253690bce2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as free game hacks and generators. The ML classifier strongly flagged this PDF as malicious, and the embedded URLs are associated with known redirector patterns. No scripts were extracted, but the document's primary function appears to be luring users to potentially malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-level-7-script-executor-free-game-hack In PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/the-final-stand-2-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/download-hack-roblox-bee-swarm-simulator_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/pokemon-go-free-coins_GM1094591345.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-roblox-clothes-app_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-free-spins-cheat-deutsch_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/rich-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/frre-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-coins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-roblox-exploits_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002de7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DE7 22480 bytes
SHA-256: d5d427d18ad1dfa7d9f7d776aa9577e7cd1ca46feeb6b2d25f74ff08d381f482
font_01_sfnt_off00006030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6030 19360 bytes
SHA-256: fe1aa535e4fd6954bbb72dc50b859c7e0a13b12fb7280e8703f2ed0c59dcf78c

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