Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ee1e448068892c3…

MALICIOUS

PDF

58.8 KB Created: 2020-08-09 11:14:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95ed67b33d6dd618d4d326558fc721cd SHA-1: 033015b9b972e69a76a477037c0bb99bc9e3e654 SHA-256: 9ee1e448068892c3e1fd2c5e831fd25b360638caaec75fac7063a2225d11cb6e
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to benign Shopify URLs, but one critical link directs to a known malicious redirector at ttraff.com. This suggests a phishing or scam attempt disguised as a legitimate document. The document body, though heavily obfuscated, contains the target URL and keywords related to the lure. 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.com/pify?keyword=cardiac+cycle+physiology+pdf
    • http://files.nottinghammassage.com/uploads/1/3/2/7/132740277/tetolebipopamot.pdf
    • http://files.southtexasamphibianandreptilesociety.com/uploads/1/3/1/3/131383480/548691.pdf
    • http://files.twofriendsgifts.com/uploads/1/3/0/8/130813528/4304846.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/as_time_goes_by_piano_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/14709151985.pdf
    • https://cdn.shopify.com/s/files/1/0433/7637/8014/files/zudemeta.pdf
    • https://cdn.shopify.com/s/files/1/0429/3623/8236/files/98473943572.pdf
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/26528191837.pdf
    • https://cdn.shopify.com/s/files/1/0434/5331/7272/files/que_es_psicologia_educativa.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0234/files/60509921320.pdf
    • https://cdn.shopify.com/s/files/1/0431/3179/7668/files/vaxezizutibodogim.pdf
    • https://cdn.shopify.com/s/files/1/0435/7426/3963/files/90779751341.pdf
    • https://cdn.shopify.com/s/files/1/0431/9284/4448/files/92602052653.pdf
    • https://cdn.shopify.com/s/files/1/0431/4464/2715/files/64625650380.pdf
    • https://cdn.shopify.com/s/files/1/0427/9199/3500/files/lofoxepaxutesusowil.pdf
    • https://cdn.shopify.com/s/files/1/0433/3853/0965/files/typeracer_hack_script.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_off0000a824.bin
883c11fa6d42c8d642a29460d53cbb91550e95ab2ebdb119d2e61056a7792414		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA824 5424 bytes
font_01_sfnt_off0000ba99.bin
cf5e205e3ff2d8da3b93d0b3e9c55f5ea4d3e5bf9ccfccbf2539abdc3e782649		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBA99 10460 bytes

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