Malicious PDF — malware analysis report

Static analysis result for SHA-256 327631218a4f710e…

MALICIOUS

PDF

32.0 KB Created: 2020-08-25 02:58:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5bc04b400692912cd8d4097e9c1506fe SHA-1: 8061e57295fcdce46b1e0fc855b73fe8130dc182 SHA-256: 327631218a4f710eb126991de1dadb33d4fb8e13998a629266d2faab0e818782
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The primary malicious link is 'https://ttraff.cc/pify?keyword=opss+cable+guide+rail', which is likely intended to lead the user to a malicious site. No scripts were extracted from this sample.

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.cc/pify?keyword=opss+cable+guide+rail
    • http://mubasa.step-by-step-declutter.com/uploads/1/3/1/6/131606201/kanojevizol_bupawipifatiw_wolasa_nofilelukimo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8475/0743/files/83211698549.pdf
    • https://cdn.shopify.com/s/files/1/0428/8669/3023/files/tipunaxowadugipuxufefejol.pdf
    • https://cdn.shopify.com/s/files/1/0431/8520/9506/files/pmbok_5th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tizerosotusalasebix.pdf
    • https://cdn.shopify.com/s/files/1/0430/7959/8229/files/grade_2_creative_writing_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0437/2814/2485/files/netflix_stuck_at_24.pdf
    • https://cdn.shopify.com/s/files/1/0436/0595/0626/files/gitewiditivemu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5830/6980/files/descriptive_words_list.pdf
    • https://cdn.shopify.com/s/files/1/0431/0525/5577/files/37695791583.pdf
    • https://cdn.shopify.com/s/files/1/0430/2451/5235/files/offline_accounting_software_free_for_mac.pdf
    • https://cdn.shopify.com/s/files/1/0430/8277/6725/files/35640033763.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_off0000410f.bin
f4171b09d25361f5aa4609894abd006ef83abd370b4335597b6e131633fde426		 pdf-font-stream PDF embedded font (sfnt) at offset 0x410F 5408 bytes
font_01_sfnt_off0000536e.bin
469cc0e3c16b24197b3bdaba5d3862535d8d4f283e8a6fbbb4c1078b3c2a48a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x536E 9540 bytes

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