Malicious PDF — malware analysis report

Static analysis result for SHA-256 da8700a6925f1550…

MALICIOUS

PDF

44.0 KB Created: 2020-09-01 04:45:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ca6184125bb3ca56e159615f852c69c SHA-1: a96f3942bc2f203f797a66f419cc8c58c262d13f SHA-256: da8700a6925f1550df7e8ee5e8911f4458ba4952df6b5a1425177657706b514c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains a link that redirects to a known malicious domain, disguised as interview tips. This indicates a social engineering lure to redirect users to potentially harmful content. The PDF also contains a large number of external links, many pointing to Shopify, suggesting a link farm or SEO manipulation tactic to distribute malicious content. No scripts were extracted, but the primary attack vector appears to be the malicious redirector.

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.com/wix?keyword=call+center+interview+questions+and+answers+tips
    • https://cdn.shopify.com/s/files/1/0431/6574/5303/files/59851896290.pdf
    • https://cdn.shopify.com/s/files/1/0434/7743/4525/files/the_lazarus_effect_movie_download_in.pdf
    • https://cdn.shopify.com/s/files/1/0433/0396/0731/files/29005003922.pdf
    • https://cdn.shopify.com/s/files/1/0460/1158/0575/files/sterns_introductory_plant_biology_1.pdf
    • https://cdn.shopify.com/s/files/1/0432/8649/5396/files/fafinababufasanubuvireb.pdf
    • https://cdn.shopify.com/s/files/1/0431/3926/8769/files/tasewaroti.pdf
    • https://cdn.shopify.com/s/files/1/0431/4326/6458/files/gimelovemev.pdf
    • https://cdn.shopify.com/s/files/1/0437/1909/8523/files/oxford_bookworms_robinson_crusoe.pdf
    • https://cdn.shopify.com/s/files/1/0431/6335/3244/files/zoology_practical_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/8079/4780/files/31490200394.pdf
    • https://cdn.shopify.com/s/files/1/0456/9035/5871/files/spear1403_androide_dragn.pdf
    • https://cdn.shopify.com/s/files/1/0437/7057/7058/files/35159327821.pdf
    • https://cdn.shopify.com/s/files/1/0443/8137/2582/files/red_alert_gif.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_off00006de9.bin
869b7df710b0586d7de17ebd8c084fbd08cda9c5ba20502fb15fea0c348f9983		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE9 5248 bytes
font_01_sfnt_off00007fe1.bin
6239f1ac567887e64f257e0d1abcdb1acf46668858fbb4140d97294fb087e688		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE1 10300 bytes

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