Malicious PDF — malware analysis report

Static analysis result for SHA-256 5289526e3f40703c…

MALICIOUS

PDF

45.8 KB Created: 2021-05-12 12:01:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: f342ae1274b384d1b9a01b33393f01bd SHA-1: 90b333e8e5792ad4dc539a696dfe48a8559d9722 SHA-256: 5289526e3f40703c4fe95326fb1e8c899e91316d5178f9693a33e87a03678ab7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically promoting 'free generator' and 'game hack' lures. The document body and extracted URLs strongly suggest a phishing or scam attempt designed to trick users into visiting malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/give-me-free-robux-game-hack In PDF document text
    • http://www.dimalcco.com/images/minecraft-for-free-apk_GM479516143.pdfIn PDF document text
    • http://www.dimalcco.com/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.dimalcco.com/images/coin-master-hack-tool-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.dimalcco.com/images/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • http://www.dimalcco.com/images/coin-mast-hacks_GM406889139.pdfIn PDF document text
    • http://www.dimalcco.com/images/coin-master-free-spins-link-download-free_GM406889139.pdfIn PDF document text
    • http://www.dimalcco.com/images/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.dimalcco.com/images/claim-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.dimalcco.com/images/minecraft-packs-free_GM479516143.pdfIn PDF document text
    • http://www.dimalcco.com/images/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • http://www.dimalcco.com/images/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • http://www.dimalcco.com/images/coin-master-free-spins-daily-link-updated_GM406889139.pdfIn PDF document text
    • http://www.dimalcco.com/images/coin-master-shield-hack_GM406889139.pdfIn PDF document text
    • http://www.dimalcco.com/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.dimalcco.com/images/microsoft-robux_GM431946152.pdfIn PDF document text
    • http://www.dimalcco.com/images/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://www.dimalcco.com/images/how-to-block-someone-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dimalcco.com/images/google-play-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.dimalcco.com/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://www.dimalcco.com/images/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://direct-link.netIn 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_003_off00004757.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4757 32912 bytes
SHA-256: 270bd6954dce5f5edc05c8369047e5681241c15468ca226167b8d11e48721228
font_01_sfnt_off00009078.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9078 18444 bytes
SHA-256: 68319dbf483afe81c5a4de3b3f5290fc223d358c0f75f000dd988daf46eb7eae

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