Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b40e6ab4fac6a86…

MALICIOUS

PDF

36.5 KB Created: 2020-09-04 23:18:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f8d1fd4266938af9bf0ef1c0d19b42c SHA-1: e860330240c28d74540e4a18d9c6977b291b89d2 SHA-256: 8b40e6ab4fac6a86e036e3cd29d597dec324ad0042970e85108a3eabd0c70c27
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to a link farm hosted on cdn.shopify.com, likely for SEO manipulation. One critical heuristic firing indicates a direct link to a known malicious redirector at 'ttraff.club'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.club/wix?keyword=arcadia+quest+pets+rules+pdf', suggesting a lure to download or view malicious content.

Heuristics 3

  • 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.
  • 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.club/wix?keyword=arcadia+quest+pets+rules+pdf
    • https://cdn.shopify.com/s/files/1/0430/0891/7657/files/heart_disease_in_pregnancy_rcog_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/73625686030.pdf
    • https://cdn.shopify.com/s/files/1/0435/0830/1989/files/ridakigimutubevavewoleme.pdf
    • https://cdn.shopify.com/s/files/1/0431/5214/6586/files/tikavud.pdf
    • https://cdn.shopify.com/s/files/1/0448/6791/1842/files/promissory_note_uk.pdf
    • https://cdn.shopify.com/s/files/1/0437/0271/4533/files/3090525507.pdf
    • https://cdn.shopify.com/s/files/1/0438/2189/1746/files/picsart_background_hd_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/8157/3279/files/renozu.pdf
    • https://cdn.shopify.com/s/files/1/0455/6678/7749/files/zogomagebazesofe.pdf
    • https://cdn.shopify.com/s/files/1/0432/2246/6727/files/83740224048.pdf
    • https://cdn.shopify.com/s/files/1/0434/7078/2614/files/58129948618.pdf
    • https://cdn.shopify.com/s/files/1/0429/1048/2591/files/examen_ceneval_simulador.pdf
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/74205241034.pdf
    • https://cdn.shopify.com/s/files/1/0461/9898/0757/files/ar_95-_1.pdf
    • https://cdn.shopify.com/s/files/1/0429/2247/5687/files/63515250436.pdf
    • https://cdn.shopify.com/s/files/1/0433/0012/6885/files/o_ghar_aaja_pardesi_ke_teri_meri_mp3.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_off00004ee4.bin
04f1edfc5769c43e34272ded766b05b532f0a015d063f2cd85cde61806450dcb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EE4 5264 bytes
font_01_sfnt_off000060d4.bin
7319d52b5cbeacf966c326b8524efe637923681d915c8e41b37fd8d8f7b1d40c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60D4 10216 bytes

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