Malicious PDF — malware analysis report

Static analysis result for SHA-256 13585191722587ef…

MALICIOUS

PDF

34.4 KB Created: 2021-06-18 14:12:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: e9197118515657c68bd06b69eda4465a SHA-1: 8966141bfb73e94e9021f23db5e89b9bbd05422d SHA-256: 13585191722587efd74151897c22236046c79722a490740f6361e6c06652ee2d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links disguised as game hacks and generators, with a primary link pointing to a known malicious redirector. The document body explicitly mentions 'How To Hack Accounts On Roblox 2021' and includes the malicious URL, indicating a social engineering lure to drive users to potentially harmful content. No scripts were extracted, but the embedded links and the nature of the lures strongly suggest a phishing or malware distribution attempt.

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/how-to-hack-accounts-on-roblox-2021-game-hack In PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/coin-master-games-hack_GM406889139.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/114-hacks_GM479516143.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/coin-master-free-coins-twitter_GM406889139.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/on-roblox-someone-hacked-me-and-lost-all-my-robux_GM431946152.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/how-to-download-wurst_GM479516143.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/lua-c-free-camera-roblox_GM431946152.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/free-sirt-maker-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/roblox-jump-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/roblox-free-items-glitch_GM431946152.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://www.bdlh.go.th/ckfinder/userfiles/files/free-robux-no-verification-no-download_GM431946152.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
font_00_sfnt_off000030cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30CC 21444 bytes
SHA-256: 9e099d9ae950c15d5a915993b9541abba1802e1cd9408ec141c44d07fc4684d6
font_01_sfnt_off00005fc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC8 19468 bytes
SHA-256: 0668b0194beabb71b900098698349edec1ff2772e671f4fd86f34849fb459fb6

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