Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d268bbc0166b7b2…

MALICIOUS

PDF

33.4 KB Created: 2021-06-18 16:15:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 4a5a7652185ab56fe812803097bf2882 SHA-1: 857a6d5d7aadd8c8036e2e5be43e7c6f6b15e184 SHA-256: 0d268bbc0166b7b22ad1ece53bd50538243701c3c94d1ef1f29d49d34399c229
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that are flagged as malicious redirectors, specifically luring users with game hack and free currency promises. The primary malicious URL identified is http://netcdn.co/app/431946152/cheat-tower-battles-roblox-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering tactic to drive traffic to potentially malicious 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/cheat-tower-battles-roblox-game-hack In PDF document text
    • http://library.futureuniversity.com/repository/daily-free-coin-and-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/legit-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-get-a-free-raid-pass_GM1094591345.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-generator-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-free-spins-daily-link-updated_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/robux-script-free_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-card-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-legit-no-virus-click-here_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/hack-coin-master-1_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/roblox-hack-clients-jailbreak_GM431946152.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_off00002ea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA8 21624 bytes
SHA-256: 4b4bd18ccf05eb66e1b43d5a577dc4bd02db2f909180400a9162efa09c956b2d
font_01_sfnt_off00005dae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DAE 18920 bytes
SHA-256: de55c9c95ea38513ec59d5f58d2614fad1670765c6f26782f6868e86fba410f0

Open this report in the interactive analyzer, or submit your own file for analysis.