Malicious PDF — malware analysis report

Static analysis result for SHA-256 af7f8036c3757d2a…

MALICIOUS

PDF

34.8 KB Created: 2021-06-27 12:08:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 5730188763df52c48a3b8fc95090f0cd SHA-1: 69d7ed40d6891617c026555b32b832825ccfdfff SHA-256: af7f8036c3757d2ae3814861e27adcea688f01e6fcafc3f63b57455baa93b25a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game items and hacks to entice users. It contains multiple links, including one to a known malicious redirector at http://netcdn.co/app/431946152/free-h-robux-aniversery-giveaway-game-hack. The document's structure and embedded URLs suggest it is designed to lead users to potentially malicious websites, likely for credential harvesting or malware delivery.

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/free-h-robux-aniversery-giveaway-game-hack In PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/hacks-for-roblox-o-survey_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/roblox-fashion-famous-free-game_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/roblox-how-to-get-free-animation-packs_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/how-to-hack-into-your-friends-roblox-account_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/roblox-build-tools-hack_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/which-group-has-free-admin-and-vip-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/tshirt-adidas-for-free-roblox-of-2021_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/roblox-hacks-2021-augest-7th_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/how-to-get-anything-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/pastebin-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/free-cafe-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/free-robux-app-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox-in-2021-pyckel_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/boxing-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/hack-robux-on-console_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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_off00002f91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F91 22716 bytes
SHA-256: 53c58261c6f2a07c692aac746d66eaeba2c43aa1f34903434d78edb4fbfdcd8d
font_01_sfnt_off00006229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6229 19296 bytes
SHA-256: dfef4204ae4ba5f3df657e9fd8c1d296d75ce10f9aec5476dbdf9b88a291506a

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