Malicious PDF — malware analysis report

Static analysis result for SHA-256 08077b1d2aba3c97…

MALICIOUS

PDF

34.8 KB Created: 2021-06-22 10:04:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 49c27ebacea83264ed86dd1eadd7675b SHA-1: 04ea73f50edbdf63ae39de9434da05423ceda3f3 SHA-256: 08077b1d2aba3c97851e32464badb64a6ff88004442445a27ec2929926cee909
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and 'PDF_MALICIOUS_REDIRECTOR_LINK' strongly indicate a phishing or scam attempt. While no scripts were explicitly extracted, the embedded URLs are the primary indicators of malicious activity, likely leading to further malware downloads or credential harvesting.

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/406889139/coin-master-online-game-hack In PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/free-modded-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/pokemon-go-free-quest-rewards_GM1094591345.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/roblox-free-clothes-girl_GM431946152.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/pubg-uc-and-rp-generator_GM1330123889.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/free-tiktok-followers-no-verification-or-survey_GM835599320.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/coin-master-facebook-page_GM406889139.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/how-to-get-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • https://brooklandsfarmchildren.co.uk/admin/ckfinder/userfiles/files/minecraft-ps3-free-download_GM479516143.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_002_off000032b0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32B0 22936 bytes
SHA-256: b10f11c6e9ed1282548ddc1ce2c5b49d5565a8b710cc27b6814508db74f4cc26
font_01_sfnt_off00006679.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6679 17908 bytes
SHA-256: af885c1e563a73b21aeaf221e479e615e354be997988ec2a0c0a0c1074b1e5d5

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