MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that redirect to known malicious infrastructure, specifically ttraf.ru. The document body, though heavily obfuscated, contains a URL that appears to be a lure for downloading a book. The presence of numerous external PDF links, many hosted on cdn.shopify.com, suggests a link farm or SEO poisoning tactic to attract victims. The ML classifier strongly indicated maliciousness.
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=fundamentals+of+cost+accounting+4th+edition+pdf
- http://files.momwhogivesaflax.com/uploads/1/3/2/8/132815791/9144541.pdf
- http://files.youngravensliteraryreview.org/uploads/1/3/1/4/131407214/zesaboxovenin.pdf
- http://files.joescottdesigns.com/uploads/1/3/1/0/131069789/revowe_nozimune_newojinawaxupi.pdf
- https://cdn.shopify.com/s/files/1/0429/3178/1791/files/vuguvijetub.pdf
- https://cdn.shopify.com/s/files/1/0434/9670/2104/files/garufofogizax.pdf
- https://cdn.shopify.com/s/files/1/0431/6587/6390/files/16943921221.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42539854631.pdf
- https://cdn.shopify.com/s/files/1/0431/3802/3581/files/vopifej.pdf
- https://cdn.shopify.com/s/files/1/0439/9307/1774/files/mekugepolosotomor.pdf
- https://cdn.shopify.com/s/files/1/0433/7090/5756/files/wow_classic_forged_steel.pdf
- https://cdn.shopify.com/s/files/1/0428/9432/7961/files/sizigitupukapepavugo.pdf
- https://cdn.shopify.com/s/files/1/0432/7256/8996/files/kafapajenoxubanekegam.pdf
- https://cdn.shopify.com/s/files/1/0431/1128/4893/files/sikaniju.pdf
- https://cdn.shopify.com/s/files/1/0428/1214/5823/files/44889788421.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_off0000dddb.binf3ae0f6135b21c78b46566c584389e2edf7ba426682b473764c2f4402a67823f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDDB | 5516 bytes |
font_01_sfnt_off0000f088.bin77e36651b3598b95168bb1a78e533dd323a7c020ae2efd16f8ff3652e8e48817 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF088 | 11072 bytes |
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