Malicious PDF — malware analysis report

Static analysis result for SHA-256 094d823e91e9e31e…

MALICIOUS

PDF

35.1 KB Created: 2021-07-08 11:41:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: df4f3bdcfda8ab49cca7b2f1ad558ce1 SHA-1: 7b009709becbd1ea10eb3660792a37b49d950de5 SHA-256: 094d823e91e9e31e5a911d5f6730812c9c828a16c706f3dd9fc0f30da364f5e7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to a known malicious redirector, disguised as a 'free generator' or 'game hack'. The document body explicitly mentions 'Promo Codes To Get Free Robux' and includes the primary malicious URL. The presence of these lures and the redirection to known malicious infrastructure strongly suggests a phishing or scam attempt designed to lead users to potentially harmful content or further exploits.

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/promo-codes-to-get-free-robux-game-hack In PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/pastebin-roblox-hack-script_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/tiktok-free-mockup_GM835599320.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/how-to-hack-vampire-hunters-2-roblox_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/free-robux-android_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/coin-master-ids-for-free-spins_GM406889139.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/coin-master-hack-lost-world-2021_GM406889139.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/can-you-give-me-robux_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/play-game-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/coin-master-free-spins-apk_GM406889139.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_off00003126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3126 22440 bytes
SHA-256: 0810f82e95b69d4c296f6d10fba9d9f42a527eb8347ee7fd02c45bf2c48d5aab
font_01_sfnt_off0000633a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x633A 19408 bytes
SHA-256: 33ce494440ad385d813675e202d0582184282b0a964bafd641ab8940aca64bdd