PDF malware analysis — malicious · e20a98fea01576d2

MALICIOUS

PDF

51.2 KB Created: 2020-08-07 05:16:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 640a2a6d55a002b181de875ed9afffc4 SHA-1: 0d2c250535cadbc0c1ac184902886ceaa2e2bc9b SHA-256: e20a98fea01576d25b800b7662d606a7bf66e67601f527843032fe7bbd1717cc

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and a deceptive title related to lecture notes. This indicates a social engineering attempt to trick users into visiting a malicious site, likely for further exploitation or credential harvesting.

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=accounting+and+finance+lecture+notes+pdf
- http://files.johnpark.co.uk/uploads/1/3/0/9/130969573/3d16829.pdf
- http://files.strengthindia.org/uploads/1/3/0/7/130739697/wusamixitifotidatebi.pdf
- http://files.glcfaithformation.org/uploads/1/3/1/6/131607010/1308078.pdf
- http://files.prettycardsandmore.com/uploads/1/3/0/9/130969206/niridonajawom.pdf
- https://cdn.shopify.com/s/files/1/0429/4190/7100/files/deborah_harkness_all_souls_trilogy.pdf
- https://cdn.shopify.com/s/files/1/0437/8945/1416/files/af_form_724.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gikari.pdf
- https://cdn.shopify.com/s/files/1/0436/2538/2051/files/knee_exercises_for_seniors.pdf
- https://cdn.shopify.com/s/files/1/0432/0270/7616/files/2316855777.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32505595602.pdf
- https://cdn.shopify.com/s/files/1/0429/6297/6921/files/nevuxalisapijiz.pdf
- https://cdn.shopify.com/s/files/1/0433/4573/9931/files/dujaxot.pdf
- https://cdn.shopify.com/s/files/1/0432/3573/7755/files/31276386160.pdf
- https://cdn.shopify.com/s/files/1/0432/4953/3088/files/dugeno.pdf
- https://cdn.shopify.com/s/files/1/0432/5467/7662/files/zagijubifexiwo.pdf
- https://cdn.shopify.com/s/files/1/0434/1825/5510/files/least_square_matlab.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8861538602.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007c08.bin` `fca3c17b07be3bc55cf97f9c1c8c0ed1f2e34ddbb93a82320261c96354256eb1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C08	3744 bytes
`font_01_sfnt_off00008952.bin` `c1249eef2dbebcde5ed0d9c34aef4c94ad0355507e8db4ad30557b97a69ad38e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8952	5312 bytes
`font_02_sfnt_off00009b78.bin` `129f8a4fe6fe79f2e92c8cf906003a668ffe9dcb70c10ef4789fade027f64d7f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9B78	10404 bytes

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