PDF malware analysis — malicious · ae1f9d98a6cdb87f

MALICIOUS

PDF

60.6 KB Created: 2020-08-19 04:31:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bf7e156bace04d0a3fa43ff26529fb8c SHA-1: 2a965d2de23fac86bd39ef4afcf1833f6e936051 SHA-256: ae1f9d98a6cdb87f9b0861ad984064b74826696db6f68e9634069ccd445ec8ab

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL and a reference to 'latitude e5400 data sheet', suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation to increase visibility.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.ru/pify?keyword=latitude+e5400+data+sheet
- http://files.jsarchiveconsultancy.com/uploads/1/3/1/3/131382243/afa7f27877cbb6.pdf
- http://files.stoneofhopeyouth.org/uploads/1/3/0/7/130740190/5262316.pdf
- http://files.parkhillbowlingclub.com/uploads/1/3/2/8/132815154/4047543.pdf
- http://files.verityhoskinsproduction.com/uploads/1/3/1/4/131453818/xabuwubikad.pdf
- https://cdn.shopify.com/s/files/1/0440/5706/7685/files/xuzazapovis.pdf
- https://cdn.shopify.com/s/files/1/0433/2794/6904/files/zagogukowovomotuv.pdf
- https://cdn.shopify.com/s/files/1/0435/0980/9318/files/nix_command_line.pdf
- https://cdn.shopify.com/s/files/1/0431/6515/5487/files/gisado.pdf
- https://cdn.shopify.com/s/files/1/0434/5459/5224/files/42685302383.pdf
- https://cdn.shopify.com/s/files/1/0431/4392/1820/files/84083799808.pdf
- https://cdn.shopify.com/s/files/1/0436/2171/2034/files/automobile_mechanics.pdf
- https://cdn.shopify.com/s/files/1/0428/9842/3967/files/46399697340.pdf
- https://cdn.shopify.com/s/files/1/0437/4714/7928/files/golirafewu.pdf
- https://cdn.shopify.com/s/files/1/0438/4446/8898/files/magazine_cover_design_psd_file_free.pdf
- https://cdn.shopify.com/s/files/1/0448/0860/1762/files/assignment_problem_hungarian_method_maximization.pdf
- https://cdn.shopify.com/s/files/1/0432/5693/8646/files/boces_lpn_entrance_exam_study_guide.pdf
- https://cdn.shopify.com/s/files/1/0431/4651/0498/files/gutozalixa.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000a268.bin` `d7ff9a1b9d54452138f0d6104728c4aaa9d6f87a59d58c3db7b0ca9032b145c8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA268	5080 bytes
`font_01_sfnt_off0000b3a9.bin` `c17f28c7afd583da5b9d6015c641094d2a8f24f5bcc68b11243d112845832d6e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB3A9	17756 bytes

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