Malicious PDF — malware analysis report

Static analysis result for SHA-256 93c963bf8ac30ee4…

MALICIOUS

PDF

33.7 KB Created: 2020-08-14 05:37:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 842f8171916bb092593d6dde5c77bb90 SHA-1: 0aa1d6651e79c4fb69869688d084306095aff6e3 SHA-256: 93c963bf8ac30ee41255406e9f689a08271c5631965062a523790d3e9e0a0b33
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to benign Shopify domains, but one critical link redirects to a known malicious infrastructure at 'ttraff.cc'. This indicates a phishing or redirection attempt, likely to lure users to a malicious site under the guise of providing nutrition information. No scripts were extracted, but the PDF structure and embedded links strongly suggest a social engineering attack.

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=nutrition+information+spaghetti+with+meat+sauce
    • http://files.adventuresaroundscotland.com/uploads/1/3/1/3/131383544/8887255.pdf
    • http://debesufib.pawsandpaint.org/uploads/1/3/2/8/132814930/toporujez_neweji.pdf
    • http://files.pinewoodsaudubon.com/uploads/1/3/1/3/131383247/runejidusivotodunun.pdf
    • http://files.marriottediting.com/uploads/1/3/0/7/130739718/javisinebiwuk_fofudal.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/85986419962.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/41873363729.pdf
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/3851015663.pdf
    • https://cdn.shopify.com/s/files/1/0432/5575/9011/files/76025381941.pdf
    • https://cdn.shopify.com/s/files/1/0429/6241/9863/files/kagat.pdf
    • https://cdn.shopify.com/s/files/1/0429/6078/1475/files/character_array_in_c.pdf
    • https://cdn.shopify.com/s/files/1/0433/7057/8070/files/how_to_make_a_call_flooder.pdf
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/99104638674.pdf
    • https://cdn.shopify.com/s/files/1/0431/7016/8992/files/catholic_apologetics_101.pdf
    • https://cdn.shopify.com/s/files/1/0435/7862/2111/files/66298409593.pdf
    • https://cdn.shopify.com/s/files/1/0436/8482/3205/files/32525443804.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_off000047b3.bin
e004e6a8aa59c9e67a35233243fb2ebb868bb880260b2961004c6654edbe4458		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47B3 5460 bytes
font_01_sfnt_off00005a30.bin
f44b6b05fc0528b4eec2b7bc86d3fb1183a1c3d54c43cbe4e80abbd1709c55ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A30 9292 bytes

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