Malicious PDF — malware analysis report

Static analysis result for SHA-256 78603c09d00095cf…

MALICIOUS

PDF

34.3 KB Created: 2021-06-17 16:47:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: b3d02c5d48bd17b66c61a216f30492e0 SHA-1: aa46665b987d2e9e127c81d1af6343f9e6b92cfb SHA-256: 78603c09d00095cffb0434bd31b5fe332a7ad6f73a51238a7acc997462605bb1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links to redirector domains, which are flagged as malicious. The document body and embedded URLs suggest a lure for game-related cheats or currency, likely leading to further malicious content or scams. No scripts were extracted, but the presence of malicious redirectors and the lure indicate a high likelihood of 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.co/app/431946152/roblox-adopt-me-free-game-hack In PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-cursor-hack_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-girl_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/safe-free-robux_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-cheat-in-roblox-rpgs_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/web-robux-free_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-spins-october-28-2021-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-upgrade-to-roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/pokemon-go-free-2021_GM1094591345.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/pro-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/minecraft-education-free_GM479516143.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_off00002e79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E79 22328 bytes
SHA-256: 4f64f4bb52d272171a3e8152dd5f21562aad82b98c2b1ca79111179cd424be8e
font_01_sfnt_off0000605b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x605B 19300 bytes
SHA-256: b6a03c571ade9fc2f116d411ef18bccc19712901f50b67a2d6c7cb6ed320177a

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