PDF malware analysis — malicious · 5995cfcff83362f3

MALICIOUS

PDF

41.4 KB Created: 2020-08-09 02:16:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 50f390a6caa08f111b6158fd970f9b20 SHA-1: 2ce00359a4328d21fe67c70b5d342027820db029 SHA-256: 5995cfcff83362f32001522eef1f7b81ecc681dbacb70e1ceaeb58783c98126a

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which is presented in the context of a 'Cambridge English First Practice Test PDF'. This suggests a social engineering lure to trick users into clicking the malicious link. The file also contains numerous other links to PDFs hosted on various domains, indicating a potential link farm or distribution mechanism.

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=cambridge+english+first+practice+test+pdf
- http://wafinupaz.emsworthupchurch.org/uploads/1/3/1/4/131437246/neripimevizok.pdf
- http://files.frostedfantasiescakes.com/uploads/1/3/0/8/130873715/2157208.pdf
- http://files.placentaoc.com/uploads/1/3/1/8/131872178/daluzodifu.pdf
- http://jesisowa.pinnaclechartermusic.com/uploads/1/3/1/3/131383483/eb77b.pdf
- https://cdn.shopify.com/s/files/1/0431/6656/4507/files/52552308483.pdf
- https://cdn.shopify.com/s/files/1/0430/5852/8405/files/15388485828.pdf
- https://cdn.shopify.com/s/files/1/0430/9604/7783/files/adding_text_to_adobe.pdf
- https://cdn.shopify.com/s/files/1/0436/1519/1202/files/73560725303.pdf
- https://cdn.shopify.com/s/files/1/0432/3885/0719/files/10885547519.pdf
- https://cdn.shopify.com/s/files/1/0440/7777/7061/files/bugaboo_cameleon_3.pdf
- https://cdn.shopify.com/s/files/1/0430/5272/8474/files/agile_processes_in_software_engineering_and_extreme_programming.pdf
- https://cdn.shopify.com/s/files/1/0433/0110/9920/files/majunepen.pdf
- https://cdn.shopify.com/s/files/1/0429/1241/5897/files/temewilazude.pdf
- https://cdn.shopify.com/s/files/1/0427/5381/8790/files/58402189604.pdf
- https://cdn.shopify.com/s/files/1/0432/6604/8165/files/fagadafide.pdf
- https://cdn.shopify.com/s/files/1/0432/4855/0050/files/1437100334.pdf
- https://cdn.shopify.com/s/files/1/0427/6633/6167/files/58353558099.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_off000061f1.bin` `728a99bbe55187216354b5ca39dac92799eb1a727896111456637bb564af3a29`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61F1	5612 bytes
`font_01_sfnt_off000074d4.bin` `a1f5d538934d52694f1c45dc4294ed862759f6a29c6f2e46af975cd569c4319e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x74D4	10444 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.