Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3269a1b270c7855…

MALICIOUS

PDF

33.1 KB Created: 2021-07-20 02:24:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 42a5f5fbc6fceebef17afd0b6c5f532c SHA-1: 55914a72b2875c80d874f53f2e9d7cd94ff46d69 SHA-256: e3269a1b270c7855ce6d56d0b5bd56aa6f337eb02523f9094eebbc68a6b33c5d
82 Risk Score

Malware Insights

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

This PDF document contains multiple links to external websites, including one that explicitly advertises a 'free generator / game hack'. The document body also contains a call to action to 'CLICK HERE TO ACCESS TIKTOK GENERATOR'. These elements strongly suggest a lure to trick users into visiting malicious sites, likely for credential harvesting or malware distribution. No scripts were extracted, but the PDF structure and embedded URLs indicate a malicious intent to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/835599320/is-tiktok-free-game-hack PDF link annotation
    • http://mypizzaoven.com/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://mypizzaoven.com/images/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mypizzaoven.com/images/is-minecraft-free_GM479516143.pdfIn PDF document text
    • http://mypizzaoven.com/images/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • http://mypizzaoven.com/images/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://mypizzaoven.com/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://mypizzaoven.com/images/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://mypizzaoven.com/images/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://mypizzaoven.com/images/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://mypizzaoven.com/images/free-robux-cards_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
stream_002_off00002cc1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2CC1 23572 bytes
SHA-256: b704d81c7f07fd51e6e326f98b1d72cb1847c01ef699b9a0c46398da2e8b818f
font_01_sfnt_off00006211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6211 17456 bytes
SHA-256: 9ac98d03116b0178d2440c8519b51994e916559904e102c6f95e7069a9c516c8

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