Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff4d096571ac3180…

MALICIOUS

PDF

46.5 KB Created: 2020-08-12 03:46:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d569c48d31c4490b19b05de3dc724d6e SHA-1: 719d7522972fa50a3ea6d210c719fe1f8a36109b SHA-256: ff4d096571ac318090e49c59ecf94c783f99f19880b4cad75fd769661f9e6369
128 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded URLs suggest a lure to download a business book, which is a common tactic for phishing or malware delivery. The PDF_SEO_LINK_FARM heuristic further indicates a large number of links, likely for SEO manipulation or to host malicious content. The SE_DOWNLOAD_BUTTON heuristic suggests a call-to-action to entice users to click the link.

Heuristics 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.ru/pify?keyword=the+business+book+big+ideas+simply+explained+pdf+download
    • http://rarijotu.buchspielerrecords.com/uploads/1/3/1/4/131482962/wuzugolutapu_tubimav_vofexiza_wugeli.pdf
    • http://files.deanagrenier.com/uploads/1/3/1/0/131069879/6451081.pdf
    • http://files.fumcgonzales.org/uploads/1/3/0/9/130969461/budizetek-jiwanagesawubik.pdf
    • http://files.karenfang.com/uploads/1/3/2/7/132740350/xolikavi-xosiwikilo.pdf
    • http://files.threadbarehands.com/uploads/1/3/0/8/130813818/9674229.pdf
    • https://cdn.shopify.com/s/files/1/0429/1729/8329/files/48860046435.pdf
    • https://cdn.shopify.com/s/files/1/0435/5493/0839/files/44305141614.pdf
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/lazixazuxobelebilu.pdf
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/ladiletumiwuxovazepag.pdf
    • https://cdn.shopify.com/s/files/1/0428/7909/0855/files/pagevaparumezigemodosopa.pdf
    • https://cdn.shopify.com/s/files/1/0436/0624/5539/files/vamidimuvodi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9603/9839/files/gutukan.pdf
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/matter_and_interactions_4th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/1814/1347/files/86480699960.pdf
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/run_dmc_ghostbusters.pdf
    • https://cdn.shopify.com/s/files/1/0439/9605/3662/files/verbe_anglais_traduit_en_francais.pdf
    • https://cdn.shopify.com/s/files/1/0428/3577/1558/files/26116856499.pdf
    • https://cdn.shopify.com/s/files/1/0430/2585/8711/files/customs_law_manual_2020_19.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076dc.bin
b2caa5755435aea9440a42f929deabb24daee6d544376a78a95228190cc8576f
pdf-font-stream PDF embedded font (sfnt) at offset 0x76DC 5776 bytes
font_01_sfnt_off00008a7a.bin
53b4dbc90cc1089f876537cf5931e80a742b410cdb39a41e41c8f2cde37f27f0
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A7A 10004 bytes