MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass of external links, including one pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though malformed, contains a URL that is also present in the heuristics, suggesting a lure to a malicious site. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm designed to distribute 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.ru/pify?keyword=binary+tree+copy+constructor
- http://files.swiftekconsulting.com/uploads/1/3/1/8/131856398/807cc94e.pdf
- http://files.dough-factory.com/uploads/1/3/1/4/131455621/lolexituzofo.pdf
- http://files.cornflowerglass.com/uploads/1/3/2/7/132740253/supelaligarug.pdf
- http://files.artistreecavaliers.com/uploads/1/3/0/9/130969489/lakawewe.pdf
- https://cdn.shopify.com/s/files/1/0432/9812/8036/files/52527030488.pdf
- https://cdn.shopify.com/s/files/1/0429/2031/2991/files/gutiwadawixozipafupixug.pdf
- https://cdn.shopify.com/s/files/1/0438/4253/5574/files/82586665670.pdf
- https://cdn.shopify.com/s/files/1/0427/6980/9564/files/38278105010.pdf
- https://cdn.shopify.com/s/files/1/0433/3459/8809/files/83361349596.pdf
- https://cdn.shopify.com/s/files/1/0429/8617/6675/files/polawizobilexagujigitajo.pdf
- https://cdn.shopify.com/s/files/1/0435/6803/8049/files/balujemalunejixevafebu.pdf
- https://cdn.shopify.com/s/files/1/0429/8201/5129/files/18030476968.pdf
- https://cdn.shopify.com/s/files/1/0431/2743/9526/files/2602043369.pdf
- https://cdn.shopify.com/s/files/1/0428/5143/4659/files/10445320627.pdf
- https://cdn.shopify.com/s/files/1/0432/7024/2460/files/relax.pdf
- https://cdn.shopify.com/s/files/1/0427/7937/7830/files/33592063099.pdf
- https://cdn.shopify.com/s/files/1/0433/5537/3720/files/83798720967.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_off0000659b.bin172db95b8a7e87e971d79c7764e851ccd381057270f489defa161c50150b12c6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x659B | 5048 bytes |
font_01_sfnt_off000076de.binea26dde46252a9d7dd14431209117ec55c8bf41e284b770136787419fcc7ec97 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76DE | 14096 bytes |
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