Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d3d180c89308525…

MALICIOUS

PDF

35.1 KB Created: 2021-07-09 07:59:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 6d814ea7b3ea59055adb4f968eed4ee5 SHA-1: 9a3687abe1b8bc7f804f965b480d187f29328da6 SHA-256: 8d3d180c89308525419bd4a9412f8ad04cdee2063068e12f81aa8c775c3ce99c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one pointing to http://netcdn.tw/app/431946152/free-roblox-com-game-hack, which is identified as a malicious redirector. The document body and embedded links suggest a lure for game-related cheats or generators, a common social engineering tactic. No scripts were extracted, but the presence of malicious redirectors and the lure indicate a high likelihood of leading users to a malicious site for further exploitation.

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-roblox-com-game-hack In PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/free-intant-robux-genertaor-no-survey_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/how-to-make-your-own-game-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/free-robux-urban_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-and-fast-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/2021-roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021-ios_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/how-to-get-stuff-that-cost-coins-free-mpe-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/free-spins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/freespinandcoin-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/how-to-get-more-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/mcmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/coin-master-lucky-patcher-hack_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/daily-spin_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1bojonegoro.sch.id/__statics/gudangsoal/files/real-free-robux-no-human-verification_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_off00003176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3176 22848 bytes
SHA-256: ef20f09d6f2760057c927272cdf973dd1e52e95deb75102b7dfc1eeb174fec34
font_01_sfnt_off000064af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64AF 18908 bytes
SHA-256: d440ae50c89bf21c2d7cea83ae76656b5c1e07e58309934906c6eda36fd94443

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