Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ef7afc0140f0d07…

MALICIOUS

PDF

43.6 KB Created: 2021-06-07 14:14:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 070e4b101bbb6ca988fe8a2c25efa055 SHA-1: ecd1fc1dc1b6d05033f61ed4b476b98a0d411bec SHA-256: 0ef7afc0140f0d0785955c829a80c69de8566ccb0c805cbba2621712d0e397ce
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that are designed to lure users into clicking on them by promising free game items or hacks for popular games like Roblox and Minecraft. The heuristic firings indicate that these links lead to redirectors and potentially malicious content. While no scripts were directly extracted, the PDF structure itself facilitates the embedding of these malicious links, suggesting an intent to redirect users to phishing or scam pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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 https://netcdn.tw/app/431946152/roblox-free-play-no-downloa-game-hack PDF link annotation
    • http://sbm-nn.ru/images/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/minecraft-114-download_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-spin-and-coins-free_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-free-headphones-code_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-minecraft-gift-codes_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-free-executor_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-mod-apk-latest-version-free-download_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-discord_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/minecraft-free-download-android-apk_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/online-coin-master-hack-here_GM406889139.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_off0000500d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x500D 23748 bytes
SHA-256: 3cdbfc35315c5c54a42654cfefd3a6e3c3dab28191d3f44b5df6296ff1492eec
font_01_sfnt_off0000862e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x862E 18844 bytes
SHA-256: 46fd0e57533196092c938ad663884d3bc38f7dfa4539a2e33443c523557f48b3

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