MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1059.001 Command and Scripting Interpreter: PowerShell
The PDF contains numerous links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'Ielts answer sheet listening and reading pdf', suggesting a lure. The ML classifier strongly flagged this PDF as malicious, and the presence of a malicious redirector indicates an attempt to lead the user to harmful content, likely for phishing or malware distribution.
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=ielts+answer+sheet+listening+and+reading+pdf
- http://files.sarahbrothersbot.com/uploads/1/3/0/8/130873728/zipukapudak.pdf
- http://files.studiosfinearts.com/uploads/1/3/2/6/132681204/zizaxovojenanamiliz.pdf
- http://bewirilo.myvitalessentials.com/uploads/1/3/0/7/130740522/bibizojeruk.pdf
- http://files.geneeskracht-van-natuur.nl/uploads/1/3/1/8/131856119/9347656.pdf
- https://cdn.shopify.com/s/files/1/0433/9525/2374/files/plague_inc_bio_weapon_normal.pdf
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/dekip.pdf
- https://cdn.shopify.com/s/files/1/0430/3018/4098/files/pixukeboleta.pdf
- https://cdn.shopify.com/s/files/1/0437/6618/6135/files/business_analytics_books.pdf
- https://cdn.shopify.com/s/files/1/0428/7663/3247/files/psychology_class_glaze.pdf
- https://cdn.shopify.com/s/files/1/0432/1142/3902/files/bagexonesulepikejonemeg.pdf
- https://cdn.shopify.com/s/files/1/0435/4713/2068/files/mla_cite_article.pdf
- https://cdn.shopify.com/s/files/1/0435/2393/2311/files/lenow.pdf
- https://cdn.shopify.com/s/files/1/0429/1782/2620/files/ser_biopsicosocial.pdf
- https://cdn.shopify.com/s/files/1/0437/9066/3832/files/relerij.pdf
- https://cdn.shopify.com/s/files/1/0430/2602/2557/files/dotukevoginitoni.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_off00006c04.bind81c478d4802bdfe088f6b0a5882ae3bdc01d526da881b60f805280effae43ff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C04 | 5332 bytes |
font_01_sfnt_off00007e34.binaba24bfee556025f5891c692a7fcddc706f80e47230842f5ad7841f5fedfac96 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E34 | 11120 bytes |
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