Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf258a8679b02596…

MALICIOUS

PDF

42.7 KB Created: 2020-08-25 04:32:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 495e9027ff0d6f523e17601d17b12e67 SHA-1: 294ba1ceea1045759aeec8d2cb95d0e72e9aa857 SHA-256: cf258a8679b02596ad158c5937e5a33b8487545e0b41f6a28cebc749f3ba5e71
120 Risk Score

Malware Insights

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

The PDF contains numerous links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'sap hybris commerce suite installation guide' and a URL pointing to a redirector. This suggests a social engineering attack aiming to trick users into visiting a malicious site.

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/pify?keyword=sap+hybris+commerce+suite+installation+guide
    • http://golek.postsustainabilityinstitute.org/uploads/1/3/1/3/131383613/6841279.pdf
    • http://xaxepero.mrgunsplace.com/uploads/1/3/2/8/132814930/lapaxaxagow_vowogir_xujoko_jaduj.pdf
    • http://files.blacklabelphotographythecatlins.co.nz/uploads/1/3/1/3/131383330/4c826d9.pdf
    • https://cdn.shopify.com/s/files/1/0436/4884/3934/files/rakuvuwilelo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2977/3982/files/chess_rush_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/7046/3912/files/20143127330.pdf
    • https://cdn.shopify.com/s/files/1/0438/2064/6562/files/adolix_split_and_merge_for_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0433/8683/0998/files/pibederavoxunufezologop.pdf
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/ilocos_tour_guide_map.pdf
    • https://cdn.shopify.com/s/files/1/0461/5520/2723/files/architecture_design_pattern_template.pdf
    • https://cdn.shopify.com/s/files/1/0452/5346/0130/files/english_fal_grade_8_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0432/8544/6824/files/56390071446.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/xojinetisidiwoxur.pdf
    • https://cdn.shopify.com/s/files/1/0427/8986/3580/files/98438965733.pdf
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/lirotusesevobatizelodiwin.pdf
    • https://cdn.shopify.com/s/files/1/0429/2070/6204/files/2443323161.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_off00006110.bin
5b56a1b33357cb8693817b57d3da4d0b9bad198d131466bde1145c7ca62dd465		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6110 5832 bytes
font_01_sfnt_off000074bd.bin
96e2b4612792138cbe87dc36d37d70bfb7564328d725834b7cc87432a80c7915		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74BD 12636 bytes

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