Malicious PDF — malware analysis report

Static analysis result for SHA-256 97a0994f395fde16…

MALICIOUS

PDF

35.6 KB Created: 2021-07-07 09:33:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2646ec2ea65e44a7b53515fed66ad932 SHA-1: a24cc45e2136f5e99855fe48b356c9674a869aec SHA-256: 97a0994f395fde16961ef50ffff554875d21d3c44096857fada7539401c99ecc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game items and hacks to trick users into clicking a link. The primary link directs to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or downloads. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate 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.tw/app/431946152/free-robux-no-verification-2021-ios-game-hack In PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/roblox-play-as-guest-free-no-download_GM431946152.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/roblox-hack-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/robux-free-pw_GM431946152.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/free-links-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/free-stuuf-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/admin-panel-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/coin-master-50-spin-link_GM406889139.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/free-roblox-followers-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/synapse-hack-roblox-download-free-2021_GM431946152.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • https://www.elearning-ganjil.massimbangkulon.sch.id/__statics/gudangsoal/files/roblox-weight-lifting-simulator-2-hack_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_off0000333c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x333C 22336 bytes
SHA-256: 02472e8486e468b3b47593a5a2660e10f0e2ce54c1d61e85b1a85628cb8789c4
font_01_sfnt_off000064ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64AE 19476 bytes
SHA-256: 9fe1ea1c86177197d61ed707d4c4071d93c63f21ffdcda5dbf12cc87dcc1e4af