Malicious PDF — malware analysis report

Static analysis result for SHA-256 a110563c042175e4…

MALICIOUS

PDF

38.8 KB Created: 2020-08-03 06:40:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ea7ea42b29b9094ae1b601ecf5c759b SHA-1: cb7242d5015653719098c9a1750da9e5e704bb19 SHA-256: a110563c042175e4a8060f99f00fb24338c4465fae4627ea1bbd4f96cd515b14
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains and one critical link to a known malicious redirector. The redirector URL is 'https://ttraff.cc/pify?keyword=andrew+dice+clay+hickory+dickory+dock'. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for phishing or malware distribution. No scripts were extracted, and the document body is heavily obfuscated.

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=andrew+dice+clay+hickory+dickory+dock
    • http://files.matthewboomhower.com/uploads/1/3/2/6/132681436/46a835c.pdf
    • http://bavaju.kaleidametz.com/uploads/1/3/1/3/131380042/sevupejufonubu.pdf
    • http://files.crowleyfuel.com/uploads/1/3/1/4/131437464/044f0870c3b.pdf
    • http://files.finaldraftwriting.com/uploads/1/3/0/7/130775274/gunugofavo-lonugil-fuvopirozosabix-bukozetaw.pdf
    • https://cdn.shopify.com/s/files/1/0434/2598/8757/files/fejoruxupexesagijad.pdf
    • https://cdn.shopify.com/s/files/1/0431/8488/1827/files/redanibuse.pdf
    • https://cdn.shopify.com/s/files/1/0433/5481/6667/files/standard_ps_2_keyboard_driver_hp.pdf
    • https://cdn.shopify.com/s/files/1/0434/5161/3334/files/69003660359.pdf
    • https://cdn.shopify.com/s/files/1/0434/4479/7600/files/nozano.pdf
    • https://cdn.shopify.com/s/files/1/0435/3340/2266/files/sudiwolinaf.pdf
    • https://cdn.shopify.com/s/files/1/0437/2611/0885/files/zenexezawagatogiredewutib.pdf
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/vopalotidepumimoziji.pdf
    • https://cdn.shopify.com/s/files/1/0434/5954/3192/files/4168811451.pdf
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/53963208717.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/godikuka.pdf
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/8915784211.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_off0000588a.bin
e458ba2b9570d2c87354c50b64401af81d3de246b5b05c7fb20cc45eb50f5389		 pdf-font-stream PDF embedded font (sfnt) at offset 0x588A 5096 bytes
font_01_sfnt_off000069eb.bin
48404e067bac521b5303a910683a8b05a15f9f8bdab2479bfa36048cf5e5de30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69EB 10792 bytes

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