MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised as an answer key. The ML classifier strongly indicates maliciousness, and the PDF_SEO_LINK_FARM heuristic shows it's part of a link farm. The primary malicious IOC is the ttraff.com redirector, which likely leads to further malicious content.
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.com/pify?keyword=answer+key+applied+auditing+cabrera
- http://files.detourla.com/uploads/1/3/1/4/131438111/0b3cb0b0.pdf
- http://files.purplewax.com/uploads/1/3/1/3/131380440/09f9ebbe4b6d32.pdf
- http://files.sarahbakpottery.com/uploads/1/3/2/6/132696029/piwugum.pdf
- https://cdn.shopify.com/s/files/1/0431/7977/0019/files/vejapoza.pdf
- https://cdn.shopify.com/s/files/1/0432/2610/3971/files/dosudugevev.pdf
- https://cdn.shopify.com/s/files/1/0431/0741/8274/files/razefakawizasezidikiwobu.pdf
- https://cdn.shopify.com/s/files/1/0435/8383/2227/files/centrifugal_fan_impeller_design.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rofimoluxita.pdf
- https://cdn.shopify.com/s/files/1/0440/0722/7542/files/95908800391.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejukimuvili.pdf
- https://cdn.shopify.com/s/files/1/0435/9880/7202/files/potinekodufik.pdf
- https://cdn.shopify.com/s/files/1/0433/0536/9758/files/zezeremuluroni.pdf
- https://cdn.shopify.com/s/files/1/0439/3956/1630/files/wiputu.pdf
- https://cdn.shopify.com/s/files/1/0447/4427/8170/files/chemistry_form_4_chapter_4_notes.pdf
- https://cdn.shopify.com/s/files/1/0429/7873/8335/files/admission_form_aiou_2018.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_off00006e39.bin9f8a968cf86a97de278c3c603573240027edcdeb466bb843417c6cb6d82bb66b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E39 | 5628 bytes |
font_01_sfnt_off00008176.bin877725a7b2679bd32609a4c8abacb4d16895daf7bdddf8a9225d20857e5f6456 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8176 | 14380 bytes |
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