Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebae44d2bcfedc12…

MALICIOUS

PDF

29.4 KB Created: 2021-05-10 19:02:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 9a26f9a1139bf14ec91dcf510db644c8 SHA-1: c8cb591b0bfb0c1f7cd79205191edf525b0582d1 SHA-256: ebae44d2bcfedc12247b99644ffa04a5bcf03dd7a17f4bf3d0fc92fa967fb185
160 Risk Score

Malware Insights

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

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body and embedded URLs strongly suggest a social engineering tactic to trick users into visiting malicious sites, likely for credential harvesting or further malware delivery. While no scripts were explicitly extracted, the nature of the PDF and its embedded links points towards a client-side exploitation or redirection chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9774

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.xyz/app/431946152/free-robux-no-human-verification-and-no-survey-game-hack In PDF document text
    • https://malungtreks.com/userfiles/files/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/is-minecraft-free-on-switch_GM479516143.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/roblox-com-hack_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/hack-the-coin-master_GM406889139.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/minecraft-kill-aura_GM479516143.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/rich-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/coin-master-free-spin-and-coin-link-app_GM406889139.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/roblox-free-hats_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/how-to-get-minecraft-for-free-on-iphone-2021_GM479516143.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/coin-master-34-4-hack-download_GM406889139.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/how-to-hack-in-roblox-prison-life_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_off0000226d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x226D 20096 bytes
SHA-256: e09b6f56e6bf4c3d235e2b4d1064cb5e94797c3ac9796e6564f82b03237a3707
font_01_sfnt_off00004d1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D1A 19328 bytes
SHA-256: d2b84e9593d62b74a5e72ac2cd252f85880eba3e829d4f4451320fa49886136c

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