MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a prominent link to 'ttraff.cc', identified as a malicious redirector. The document body, though partially corrupted, includes text related to 'coding interview questions' and lists numerous URLs, many pointing to Shopify domains hosting PDFs. This suggests a link farm or SEO poisoning tactic to lure victims through seemingly legitimate content to a malicious redirector. The ML classifier strongly flagged this PDF as malicious.
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/pify?keyword=coding+interview+questions+narasimha+karumanchi+pdf+quora
- http://files.ecofitpt.com.au/uploads/1/3/2/6/132681053/9105361.pdf
- http://files.trinitybaptist-illinois.com/uploads/1/3/0/7/130775304/ae3f032fb14bfcb.pdf
- http://files.electronpotential.com/uploads/1/3/1/4/131408209/520518.pdf
- https://cdn.shopify.com/s/files/1/0428/7689/5398/files/52889839155.pdf
- https://cdn.shopify.com/s/files/1/0431/9494/1603/files/9894421740.pdf
- https://cdn.shopify.com/s/files/1/0438/4584/5152/files/7771211421.pdf
- https://cdn.shopify.com/s/files/1/0432/0047/9391/files/31957651248.pdf
- https://cdn.shopify.com/s/files/1/0428/8462/8633/files/vugategemibox.pdf
- https://cdn.shopify.com/s/files/1/0434/1720/6946/files/42249304164.pdf
- https://cdn.shopify.com/s/files/1/0430/3290/3829/files/59292711544.pdf
- https://cdn.shopify.com/s/files/1/0436/9180/2777/files/58923003318.pdf
- https://cdn.shopify.com/s/files/1/0435/3314/0127/files/68777818655.pdf
- https://cdn.shopify.com/s/files/1/0434/5259/6374/files/avery_labels_template_18660.pdf
- https://cdn.shopify.com/s/files/1/0430/4466/7553/files/ametropias_2020.pdf
- https://cdn.shopify.com/s/files/1/0435/5011/3943/files/array_function_in_php.pdf
- https://cdn.shopify.com/s/files/1/0429/2725/9811/files/mezasurewofuvuxiro.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_off00006c96.bin8ce88260a6d205cc9b235960b695ff42f0ca47190f124e5ef20ba108870f3e36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C96 | 5784 bytes |
font_01_sfnt_off0000802b.bin152645e6cb6e6ee9ced3a050f5286f0b405ae918e2120eccc29c9e42b22ea85b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x802B | 10632 bytes |
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