Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f098b213d13100b…

MALICIOUS

PDF

34.7 KB Created: 2021-07-01 16:43:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 66471546d03c482ccbacb5ca2dbf29b8 SHA-1: 3f4529b0cb25bec891d696eb369022da69dad7e3 SHA-256: 1f098b213d13100b4205a69ad24352cee922b64a38d36cf86840fd2c784b71f4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The heuristic firings indicate the PDF is designed to lure users to these malicious sites, likely for further exploitation or malware delivery. No scripts were extracted, but the embedded URLs and the nature of the lures strongly suggest a phishing or social engineering attack.

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/green-scarfs-roblox-for-free-game-hack In PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/apps-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/roblox-source_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/robux-hack-kostenlos_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/coin-master-free-items_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/cheat-code-farming-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-spin-card-exchange-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/games-to-play-free-no-membership-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/roblox-cheat-2021-with-temp-files_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/how-to-get-free-robux-by-robux-king_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/coin-master-hacksco_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/pubg-uc-via-login_GM1330123889.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/is-hacking-on-roblox-illegal-in-australia_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_off0000306b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x306B 22944 bytes
SHA-256: ab71185f3fec5a0dfa2dee04a469a3b22899a2e4e5b64a370d62624b7893661c
font_01_sfnt_off0000639f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639F 18652 bytes
SHA-256: e6d8600e5edc5acc8785041640fcfa8b0f8a0561baed3261d765f625270cb2d3

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