Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ba08236a4e5b3c1…

MALICIOUS

PDF

34.3 KB Created: 2021-06-27 06:32:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 63d89ec5f593ea1f2820118aa941ce6a SHA-1: 5022db38af3758fcf77d6772747c9d6052a2ebcd SHA-256: 3ba08236a4e5b3c131a93c429dfcc1462169226ce7b546ab98a0452cbfce6a7d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to redirector domains, which are known to host malicious content. The document body and extracted URLs suggest a lure for game-related cheats and hacks, a common social engineering tactic. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful sites.

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-inspect-element-hack-free-robux-game-hack In PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-rocitizens-money-cheat-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-spins-coin-master-links-thursday-november-28-2021_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-heroes-online-hack_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-promo-codes-2021-july_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-infinite-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/10000-robux-free_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-code-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-breaking-point-aimbot-hack_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-game-pack-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-daily-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-comroblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-free-spin-link-today-download_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/money-roblox-hack-pastebin_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_off00002de1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DE1 22436 bytes
SHA-256: c558877acae8d7073700906d058573bade903a4bb20d6c736e93580c9687bb5b
font_01_sfnt_off00005fbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FBE 19500 bytes
SHA-256: 302fdbbb325c7b0238697435f0dd0627fb15604d30fa41454caed716045d5a00