Malicious PDF — malware analysis report

Static analysis result for SHA-256 daa8d9a8117a6fd7…

MALICIOUS

PDF

35.6 KB Created: 2021-06-27 14:00:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 75a9316c3d0ee52979871959fa8d62e9 SHA-1: ec5e17665daf0d5b6c8e99d1e75469f260fc489c SHA-256: daa8d9a8117a6fd7c65a69bfc37dfe6c93d8403f0672aa60fa26cc246c175c0a
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to malicious redirectors, specifically promoting 'free game hacks' for popular titles like Roblox. The heuristic firings confirm these links point to known malicious infrastructure and are designed as lures. The document body, though partially corrupted, contains text and URLs consistent with a phishing or scam attempt to trick users into visiting malicious sites.

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-a340-free-game-hack In PDF document text
    • http://opac.salatiga.go.id/slims7/repository/comment-avoir-admin-commande-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-item-command-consle-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/pubg-800-uc_GM1330123889.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-shirt-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/easy-robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/roblox-trolling_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/epic-game-free-liggiy-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-robux-hack-2021-june_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/robuxian-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/roblox-moderators_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/android-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off00003409.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3409 22548 bytes
SHA-256: 35faef980c84b6e049cca29b8f7eca316d66a747136069c77384d62b249a8556
font_01_sfnt_off0000660e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x660E 19056 bytes
SHA-256: 0a64ca902c273b6de2b68cc2d62c3e9776ae35b7ca5744deb387d8ff874b7647

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