Malicious PDF — malware analysis report

Static analysis result for SHA-256 2241deeba69448f7…

MALICIOUS

PDF

33.9 KB Created: 2021-07-08 08:39:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 5e2f51a2b585222af692d7da2561a51c SHA-1: 6aeb83727b9627bfb940dc8f530b7384e78e0f91 SHA-256: 2241deeba69448f751d3a3832e198f25b0300deec9b1bcfb21487d5df9eccf9f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as 'game hacks' or 'free generators'. The primary lure URL is http://netcdn.tw/app/479516143/how-to-get-minecraft-for-free-on-phone-game-hack. This indicates a phishing or scam attempt, likely to deliver further malware or steal credentials. No scripts were extracted, but the embedded links are strong indicators of malicious intent.

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/479516143/how-to-get-minecraft-for-free-on-phone-game-hack In PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/how-to-get-free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/coin-free-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/how-do-i-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/nuevo-robux-hack-2021-funcionando-robux-gratis_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/roblox-all-free-packages_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/how-to-hack-almost-any-game-roblox-november-2021-100_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/robux-generator-com_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/coin-master-daily-free-coins-link-today_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/pubg-uc-kuwait_GM1330123889.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/roblox-cheat-pubg_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_off00003153.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3153 21964 bytes
SHA-256: a735cd574c85d31243223951d5fe3594d418e3d924e11992ae4cc7d718dfc441
font_01_sfnt_off00006184.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6184 18484 bytes
SHA-256: 487100d73f6d1c6bb9027b4b0f8fffe0540623d8809bb1f7b8366124ba2b3e2a

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