Malicious PDF — malware analysis report

Static analysis result for SHA-256 076a7048436e83f3…

MALICIOUS

PDF

41.8 KB Created: 2021-05-23 02:44:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 3b5d7f58f8116bea557400fbb0f7d04c SHA-1: 29faa15b96986cd2bf6295089c4f88c7eecf54dd SHA-256: 076a7048436e83f34e3726121704e6f1c9d8732e4ad0b17892946a62d5467eaf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites that host further PDF files, all of which are lures for free Robux or game hacks. One of the primary links, 'https://netcdn.xyz/app/431946152/free-robux-no-verification-needed-game-hack', is identified as a malicious redirector. The document body also contains a call to action to 'CLICK HERE TO ACCESS ROBLOX GENERATOR', reinforcing the phishing nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7527

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/free-robux-no-verification-needed-game-hack In PDF document text
    • https://encounternepal.com/userfiles/files/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/vip-roblox-free_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000034b1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34B1 28104 bytes
SHA-256: d7f0db383d3e5e76158641aa7c6f482a38ed654363fdfe7c6d5c157ab7946f49
font_01_sfnt_off000073e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73E8 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off00008090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8090 18776 bytes
SHA-256: d142001b9e8124b93d34dd5eb493ac1502906b177ba9fa7077e4038994baf40d

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