Malicious PDF — malware analysis report

Static analysis result for SHA-256 09b1dfd3cbda4e08…

MALICIOUS

PDF

44.9 KB Created: 2021-05-23 05:36:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 0f475adf06a6f6c5b5e9c2a9cf933d5c SHA-1: df59444f735803f787c291654971b128b317ffc9 SHA-256: 09b1dfd3cbda4e08babe75305a13f0427dfe70f738f2d24e1b00fbb9b8a890d2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including one identified as a malicious redirector, disguised as a 'game hack' lure. The document body explicitly mentions 'How To Hack Roblox To Get Robux' and includes a call to action to access a generator. This suggests a social engineering attack aimed at tricking users into visiting malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7947

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 https://netcdn.xyz/app/431946152/how-to-hack-roblox-to-get-robux-game-hack In PDF document text
    • http://lepatrimoinedesvallees.fr/images/get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/coin-master-free-rewards-link_GM406889139.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/blox-rewards_GM431946152.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/pokemon-go-free-storage-upgrade_GM1094591345.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003287.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3287 30556 bytes
SHA-256: b588bc3b38a7e5a19bee60b748bbe243034ee42bbda826c23eda37208c1d79b0
font_01_sfnt_off00007699.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7699 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00008045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8045 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_03_sfnt_off00008ced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CED 18588 bytes
SHA-256: 6723e17a0e3ea7e17da9fa5ee91cb22fe0fa4706a6f3d09ae44dda015c08872b

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