MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged as malicious by a machine learning classifier and contains a link farm with numerous external PDF links. One of the primary links points to a known malicious redirector infrastructure, suggesting an attempt to lure users to malicious sites. The document body, though heavily obfuscated, contains the same malicious URL and several benign-looking Shopify URLs, likely used to mask the malicious activity.
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.cc/pify?keyword=slow+dance+adventure+time
- http://files.hydrocracker.co.uk/uploads/1/3/1/3/131397946/1300e19ca.pdf
- http://files.northshorebaptist.org/uploads/1/3/1/4/131453897/1183795.pdf
- http://files.patricktucker.org/uploads/1/3/0/7/130739895/7405464.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/6400/8605/files/32123792142.pdf
- https://cdn.shopify.com/s/files/1/0431/6731/8167/files/43657828193.pdf
- https://cdn.shopify.com/s/files/1/0431/3884/2779/files/54399190205.pdf
- https://cdn.shopify.com/s/files/1/0435/2511/1967/files/97096664631.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nemevisofopanufu.pdf
- https://cdn.shopify.com/s/files/1/0435/7577/1304/files/julagetebibuga.pdf
- https://cdn.shopify.com/s/files/1/0433/3459/8809/files/zomutexexoluju.pdf
- https://cdn.shopify.com/s/files/1/0437/3954/5761/files/29707642829.pdf
- https://cdn.shopify.com/s/files/1/0429/5468/6617/files/rovamavi.pdf
- https://cdn.shopify.com/s/files/1/0438/5744/5029/files/11745893561.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_off00004c4b.bin854a0739e705092f7ca9c68411e6023d5aee2e10706269cf4ea297e7b3999a26 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4C4B | 5164 bytes |
font_01_sfnt_off00005ddf.bin3d87f71074b724268bc1fbf27e153f02095ff25102e67236c0497b0101422d9f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DDF | 9704 bytes |
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