MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic identified links to known malicious redirector infrastructure, specifically `https://ttraff.ru/pify?keyword=must+have+android+apps+august+2019`. Another heuristic indicated a large number of external PDF links, suggesting a link farm or SEO spam campaign. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or malicious redirection attempt, likely delivered as a spearphishing attachment.
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.ru/pify?keyword=must+have+android+apps+august+2019
- http://files.indianstream.org/uploads/1/3/2/7/132710791/jilod-fazekas-zomamukolov.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/3061/8020/files/85201105774.pdf
- https://cdn.shopify.com/s/files/1/0429/3813/8783/files/adverbs_and_adverbial_phrases_exercises.pdf
- https://cdn.shopify.com/s/files/1/0432/9105/0142/files/capgemini_sql_interview_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0447/5614/0186/files/biological_classification_ncert_book.pdf
- https://cdn.shopify.com/s/files/1/0429/8165/4691/files/zopinuzobi.pdf
- https://cdn.shopify.com/s/files/1/0433/8787/9580/files/bizaxadujisosomuwis.pdf
- https://cdn.shopify.com/s/files/1/0435/1826/3464/files/naregunebetasufofirudoje.pdf
- https://cdn.shopify.com/s/files/1/0437/8768/1954/files/81016055651.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_off000082b2.bin93d3026d597a698a29c19a58643f630366afb5421a1ecde2d1d74513cb69ecb3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82B2 | 5736 bytes |
font_01_sfnt_off0000963d.bine55793ae7cd951c870df09e995ff2950e917fc1cd83a8adcd4553fec76f8f01c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x963D | 10420 bytes |
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