PDF malware analysis — malicious · 0d981d2f28eeb19b

MALICIOUS

PDF

36.6 KB Created: 2020-08-20 19:55:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a50595d94b612831a439bcb568185342 SHA-1: 7e21bcdedb3fbc8c9df24e1bdbee7b240a06ace9 SHA-256: 0d981d2f28eeb19b0da5bca97728f00560e8bb5d35ccc6f06f2688ecd31fa4c7

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link to a known malicious redirector, ttraff.com, which is likely used to funnel victims to malicious sites. The document also contains a large number of external PDF links, many pointing to Shopify-hosted files, suggesting a link farm or SEO poisoning attempt. The embedded content, though obfuscated, includes the malicious URL, reinforcing the redirection attempt.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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=s+letter+heart+pics
- http://files.bowsandballcaps.com/uploads/1/3/1/6/131606475/8185471.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0438/8726/3899/files/risovixagufakog.pdf
- https://cdn.shopify.com/s/files/1/0431/1754/3588/files/vuladuzawup.pdf
- https://cdn.shopify.com/s/files/1/0438/3863/6192/files/bartram_trail_map.pdf
- https://cdn.shopify.com/s/files/1/0429/7234/8579/files/39917996384.pdf
- https://cdn.shopify.com/s/files/1/0428/3046/3135/files/xokali.pdf
- https://cdn.shopify.com/s/files/1/0434/9159/0308/files/7336294926.pdf
- https://cdn.shopify.com/s/files/1/0433/0595/9588/files/67781935310.pdf
- https://cdn.shopify.com/s/files/1/0453/2525/4811/files/aiff_audio_interchange_file_format.pdf
- https://cdn.shopify.com/s/files/1/0433/6992/2714/files/wupilozumaz.pdf
- https://cdn.shopify.com/s/files/1/0434/1530/6405/files/5487392316.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/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000512a.bin` `c39440cfad44e6f6c5c987f684cf66bef01fea737a8df1a6f97b625819971d56`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x512A	5124 bytes
`font_01_sfnt_off00006283.bin` `09d7074aa249f3e3171efc7684cda9cf8ade7b0f31a2a53f36eccd0d36c1a466`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6283	10548 bytes

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