Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2dfe7dbe31ccbfd…

MALICIOUS

PDF

58.6 KB Created: 2020-09-08 13:21:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a586561805f995d82f5ca91ea7ee6d25 SHA-1: 5aa13197708a1ad0880218f1be6c07519220efeb SHA-256: d2dfe7dbe31ccbfd83bced424456950dea4b853516f7a426add3bb4de3349d6a
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.club/pify?keyword=polarity+of+solvents+table+pdf'. This indicates an attempt to redirect users to malicious content. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the exact lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=polarity+of+solvents+table+pdf
    • https://cdn.shopify.com/s/files/1/0439/2330/8712/files/commando_game_mod_apk_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/2637/5071/files/vasuwafazawokubegul.pdf
    • https://cdn.shopify.com/s/files/1/0469/4366/6337/files/magnus_chase_the_ship_of_the_dead_pd.pdf
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/64352637984.pdf
    • https://static.usrfiles.com/ugd/f4de5e_4798b7c9adc6474c8191a09690fd43a6.pdf
    • https://cdn.shopify.com/s/files/1/0431/5503/0170/files/betrayal_harold_pinter.pdf
    • https://cdn.shopify.com/s/files/1/0430/9241/0525/files/53627246929.pdf
    • https://cdn.shopify.com/s/files/1/0434/1045/6730/files/telecharger_gaston_lagaffe_1fichier.pdf
    • https://cdn.shopify.com/s/files/1/0429/0750/0711/files/empire_manufacturing_report.pdf
    • https://cdn.shopify.com/s/files/1/0461/1358/7363/files/brawl_stars_ios_mod.pdf
    • https://cdn.shopify.com/s/files/1/0433/4593/6535/files/30341790242.pdf
    • https://cdn.shopify.com/s/files/1/0430/2720/2205/files/14749341242.pdf
    • https://cdn.shopify.com/s/files/1/0438/4676/2656/files/vukutonosaziregojul.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008396.bin
8064d831c6ea3ed5c77ddd562d5de5665b39b86d3aafd73f039690b112f2f6a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8396 5340 bytes
font_01_sfnt_off000095d5.bin
ab62f948fbfe660cfcfe72c9f079e27c6ca9cbc3e093cb033fa44a363b54e1c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95D5 15484 bytes
font_02_sfnt_off0000c68f.bin
541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC68F 16204 bytes

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