Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5a94dd4a93f5e37…

MALICIOUS

PDF

39.8 KB Created: 2020-08-06 20:56:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9271cf0ae17573e32b602065530a6181 SHA-1: dce188be8de8e16de67def7c96d2065fb847a7f0 SHA-256: d5a94dd4a93f5e37db17fb67a8e800555a993a7a9aa79b1ee85980cf26f7c444
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic firing indicates that a link within the document redirects to known malicious infrastructure at `ttraff.cc`. This suggests the document is designed to lure users into clicking malicious links, likely for phishing or malware distribution. 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=origen+del+liberalismo+pdf
    • http://files.audubonelementaryeagles.com/uploads/1/3/0/9/130969077/pilonarabenuji_jonumi_vigalap_fapiwejuvaper.pdf
    • http://wapopugal.boim.org/uploads/1/3/1/8/131857334/b0ce2.pdf
    • http://files.shoppingrad.com/uploads/1/3/0/9/130969999/dasekomaputu-vodotaxizuwedu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5555/4458/files/55210154160.pdf
    • https://cdn.shopify.com/s/files/1/0431/8432/4770/files/14671957378.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/ditilukamomunurinuwu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8671/6830/files/11879997120.pdf
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/playboy_the_masion_game.pdf
    • https://cdn.shopify.com/s/files/1/0428/1512/7708/files/76344219258.pdf
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/black_s_law_dictionary_fifth_edition.pdf
    • https://cdn.shopify.com/s/files/1/0441/3433/4616/files/brahmanaspati_suktam_sanskrit.pdf
    • https://cdn.shopify.com/s/files/1/0432/8741/2900/files/dabixemuwasetes.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_off00005c3c.bin
329955bdb9f2f39c0f3b857bad30e1ebc7092a277848a2527ecfb0458208017b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C3C 5528 bytes
font_01_sfnt_off00006ee8.bin
012c65782df6e8cc1a15ecfaab09d47e37afd4f6de50b4d5c7925a3f3ec80c4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE8 10528 bytes

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