MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1204.001 Malicious Link
T1566.002 Spearphishing Attachment
T1059.003 Windows Command Shell
The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. The document body, though heavily obfuscated, suggests a lure related to 'common linux commands cheat sheet'. The PDF also contains a large number of embedded links, many hosted on Shopify, which is indicative of a link farm. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' suggests the document attempts to trick the user into executing commands via the clipboard.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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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=common+linux+commands+cheat+sheet In PDF document text
- http://files.oberonmassage.com/uploads/1/3/1/4/131453252/7e825c12dc.pdfIn PDF document text
- http://files.photosbywildwood.com/uploads/1/3/0/9/130969185/ruminuwemuzexalusak.pdfIn PDF document text
- http://files.michellemmonagin.com/uploads/1/3/1/4/131453294/putawux.pdfIn PDF document text
- http://files.duntonstreetcommunications.com/uploads/1/3/0/7/130740200/susufuxajox_wisawozexu_putux_zinukuli.pdfIn PDF document text
- http://files.theguardianofnature.org/uploads/1/3/1/4/131453429/najozedunipa.pdfIn PDF document text
- https://cheatography.comIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8540/5089/files/92954763702.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5369/4626/files/87082444259.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3279/6574/files/85110751120.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5808/6559/files/wigawarirosuramojabiwenux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6665/3858/files/21193440615.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9386/9212/files/47877362876.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/6895/4526/files/nolixijijepezuxojixal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6750/6849/files/47710255162.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7368/3112/files/91032691577.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8575/6568/files/jelapoxaxatowuxumu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kupesuditijativerawepafu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7678/0192/files/sikafuteg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7373/2768/files/44625723692.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007dc5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7DC5 | 5056 bytes |
SHA-256: 636b217ef7c8c9213eae06d0b5da6b4f75a4f6b9b0415055d0722a795ba248b0 |
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font_01_sfnt_off00008eca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8ECA | 10504 bytes |
SHA-256: 262509e94410e26be088c0150bcc15f2bf2b122317013f50142e07afba7cfb3c |
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