Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba74d21c71d062b…

MALICIOUS

PDF

41.4 KB Created: 2021-04-28 02:18:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 0d08cfc3170319eda90ea320c13e580b SHA-1: 9d322f0ac92f0e9b3e0582fb06e167c4b435fbb4 SHA-256: aba74d21c71d062ba9583ca75645b9b0843a104c8a26253481902afc950f41d7
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains lures related to game hacks and includes a prominent download button, aiming to trick users into clicking malicious links. The primary malicious URL, https://netcdn.xyz/app/431946152/downlaod-fly-cheat-roblox-game-hack, is associated with known malicious redirector infrastructure. The document body also contains urgency-related text, further encouraging immediate user action.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/downlaod-fly-cheat-roblox-game-hack In PDF document text
    • http://www.saburai.ac.id/elibrary//repository/how-to-hack-roblox-tycoons.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/como-descargar-roblox-hackeado-para-pc.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/roblox-free-stylish-animation.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/descargar-programa-para-hackear-roblox.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/teleport-roblox-hack.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/cheat-arsenal-roblox.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/roblox-bubblegum-simulator-cheats.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-roblox-toy-redemption-codes.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-egtv-in-roblox.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/egg-hacker-2021-roblox.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
stream_003_off000040fa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x40FA 27084 bytes
SHA-256: e384331bfe1bcaad668815e5d0e85d96befcafa028f4f99a8b3317305d706bd4
font_01_sfnt_off00007d42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D42 19132 bytes
SHA-256: feef487dae65c928f3b5412ddc1ca76ff1681e7b499bcf7d174a904df018d6f4

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