MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with one identified as a malicious redirector. The ML classifier strongly indicated maliciousness. The document body, though obfuscated, contains URLs that are likely part of a link farm designed to attract traffic or distribute malicious content. The presence of embedded URLs and the redirector link suggest an attempt to lure users to malicious sites.
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=silent+letters+esl+pdf
- http://zigaz.salmansyed.com/uploads/1/3/0/7/130776131/vanodidaz-niwixubanudon.pdf
- http://files.emilynahrens.com/uploads/1/3/0/7/130740124/2743833.pdf
- http://files.missabellahousekeeping.com/uploads/1/3/1/4/131438604/zuwevenowaj.pdf
- http://files.denvermasktaskforce.com/uploads/1/3/1/4/131406826/6878243.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0440/5883/7142/files/over_and_over_again_nelly.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vibuzos.pdf
- https://cdn.shopify.com/s/files/1/0431/3006/0955/files/nigufamesituxawus.pdf
- https://cdn.shopify.com/s/files/1/0432/7545/2569/files/random_forest_feature_selection.pdf
- https://cdn.shopify.com/s/files/1/0432/1335/7211/files/vulture_city_3_release_date.pdf
- https://cdn.shopify.com/s/files/1/0434/5511/9513/files/puvikipel.pdf
- https://cdn.shopify.com/s/files/1/0431/9281/1669/files/nuresagunudufakatoxuguj.pdf
- https://cdn.shopify.com/s/files/1/0440/2741/2645/files/tijezixavusoribagibawo.pdf
- https://cdn.shopify.com/s/files/1/0430/7563/3306/files/93413051576.pdf
- https://cdn.shopify.com/s/files/1/0430/0688/6051/files/povugonenenivovolisen.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_off000061b7.bin6d1a824dded5e35295c49ce1b0e0752f7e127d21180c47b389067519cd3cad66 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61B7 | 4928 bytes |
font_01_sfnt_off00007289.bin3878c9ebcfc00c6624ed11be02090513631bcda3b1168c6394ad3a416ce444ab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7289 | 14748 bytes |
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