MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'VLC video player app for android'. This URL, https://ttraff.ru/pify?keyword=vlc+video+player+app++for+android, redirects to a link farm hosted on Shopify, which in turn hosts numerous PDFs. The primary malicious URL is the initial redirector.
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=vlc+video+player+app++for+android
- http://relone.taghmonns.com/uploads/1/3/1/6/131636725/kuwanule.pdf
- http://files.most-wanted-ent.com/uploads/1/3/1/1/131163943/tuwajorusuxose-zosewe-sameda-xotamazakubo.pdf
- http://files.marlowkelly.com/uploads/1/3/1/4/131407901/dodalijeronajozokulo.pdf
- http://depixunul.gunfightersmc.com/uploads/1/3/1/0/131070627/5238742f9.pdf
- https://cdn.shopify.com/s/files/1/0435/3448/3605/files/39335367675.pdf
- https://cdn.shopify.com/s/files/1/0434/5564/3813/files/pulodujidefogigibazar.pdf
- https://cdn.shopify.com/s/files/1/0429/9731/7783/files/zedawifuxisexexirim.pdf
- https://cdn.shopify.com/s/files/1/0433/5196/5855/files/raving_fans_ken_blanchard.pdf
- https://cdn.shopify.com/s/files/1/0436/5916/5849/files/81989588979.pdf
- https://cdn.shopify.com/s/files/1/0433/5720/8731/files/gram_positive_cocci_bacteria.pdf
- https://cdn.shopify.com/s/files/1/0428/5467/8687/files/css_background_color_opacity.pdf
- https://cdn.shopify.com/s/files/1/0433/4800/0927/files/zuzizawusosesezelomo.pdf
- https://cdn.shopify.com/s/files/1/0431/6993/9607/files/kumulepodevoragaru.pdf
- https://cdn.shopify.com/s/files/1/0430/0842/6143/files/fubarewad.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_off00006e9f.bin7c71bb3299af1413166bae7f7630f2e195eb6816601cba8bc46af9b45294a114 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E9F | 5096 bytes |
font_01_sfnt_off0000800e.bin05dd91d9d56dfc785eac4a552763a4e529a5824efef4ada7cc23d75d06ba4edb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x800E | 10516 bytes |
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