MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'centrifugal compressor maintenance pdf' and a URL pointing to a redirector. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm designed to attract search engine traffic and lead users to malicious destinations.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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/wb?keyword=centrifugal%20compressor%20maintenance%20pdf
- http://files.janetcrowcst.com/uploads/1/3/1/4/131438234/kituwixab_fepitod.pdf
- http://files.lechowskislab.com/uploads/1/3/2/6/132683088/wevexep.pdf
- http://files.robertjschneider.com/uploads/1/3/1/6/131637714/b9d6f891.pdf
- http://files.riverroadflowers.com/uploads/1/3/0/8/130874482/bibufak.pdf
- https://cdn.shopify.com/s/files/1/0435/1596/9688/files/gaxegizelurilotoneze.pdf
- https://cdn.shopify.com/s/files/1/0438/0871/9005/files/18520144171.pdf
- https://cdn.shopify.com/s/files/1/0434/9696/4261/files/bhabani_bhattacharya_a_moment_of_eternity.pdf
- https://cdn.shopify.com/s/files/1/0435/8412/7135/files/breath_of_the_wild_expanded_edition_guide.pdf
- https://cdn.shopify.com/s/files/1/0434/9699/7030/files/usmle_step_3_first_aid.pdf
- https://cdn.shopify.com/s/files/1/0434/5652/8544/files/zumejusowow.pdf
- https://cdn.shopify.com/s/files/1/0432/4550/2626/files/9495403439.pdf
- https://cdn.shopify.com/s/files/1/0431/9143/5422/files/timozibanogesasemorufuju.pdf
- https://cdn.shopify.com/s/files/1/0446/7916/8153/files/certified_ethical_hacker_foundation_guide.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34515707504.pdf
- https://cdn.shopify.com/s/files/1/0437/1503/5291/files/77749438450.pdf
- https://cdn.shopify.com/s/files/1/0449/2158/5831/files/adverb_of_manner_worksheet.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_off00006283.bine0ddd7ffc314a5c4b4ea9ebdcbe352f63b24dc5c9448816e7dbb50b79534e22c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6283 | 5380 bytes |
font_01_sfnt_off000074ab.bina2ed73392c67143ca72888e84203bf908f08c5cceab178503f1c66749eb3eeea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74AB | 10240 bytes |
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