Malicious PDF — malware analysis report

Static analysis result for SHA-256 02a1da59d75dc324…

MALICIOUS

PDF

34.8 KB Created: 2021-06-25 23:50:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 9d16c4612b6d67558ed144bd7cd21fec SHA-1: 25b8b6d86e29d3c2adc7480211f1f931deb7a1cb SHA-256: 02a1da59d75dc3241e6991413099ea612e1d37c307f55a4745c4369cd3230ddf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one that points to known malicious redirector infrastructure. The document body and heuristics indicate a lure for 'free generator / game hack' content, specifically mentioning 'Robux Gratis 2021 Pc Hack'. This suggests an attempt to trick users into visiting malicious sites, likely for credential harvesting or malware delivery.

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/robux-gratis-2021-pc-hack-game-hack In PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-games-browse-our-selection-of-free-online-games_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/microsoft-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-exploit-razzberry-and-tools-hack_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/coin-master-hack-apk-facebook-login_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-com-cheats-for-money_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/minecraft-116-free_GM479516143.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/login-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/united-gaming-net-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-do-you-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/has-roblox-been-hacked-2021_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-get-free-robux-no-scam_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_off0000300a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x300A 22244 bytes
SHA-256: 5aa9f416b68b1721cbdd8e6ffa90ec216749df14583b747a7d0789dee2cd2020
font_01_sfnt_off00006184.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6184 19504 bytes
SHA-256: 1ce38562906ca1096fe90c15c0b6cd784a2df389ac03d4e479ccc4e8799526fd