MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lure users into downloading further malicious content. The document body and embedded links suggest a phishing attempt, impersonating a USPS form to trick users into clicking the malicious link. The ML classifier strongly supports the malicious verdict.
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=usps+form+1583
- http://files.simleybasketball.com/uploads/1/3/1/3/131381374/wunarizetesaruk.pdf
- http://files.countrytimbergoods.com/uploads/1/3/1/4/131453944/572cff56a7a7e7c.pdf
- http://files.theislamicummah.org/uploads/1/3/1/3/131384468/fekeporopubu.pdf
- http://files.plumaslafco.org/uploads/1/3/2/7/132740291/jowesivekofilewezas.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99237037604.pdf
- https://cdn.shopify.com/s/files/1/0434/5754/4342/files/ginoram.pdf
- https://cdn.shopify.com/s/files/1/0432/7863/1072/files/12111308999.pdf
- https://cdn.shopify.com/s/files/1/0433/8440/6181/files/fisher_auction_el_cajon_ca.pdf
- https://cdn.shopify.com/s/files/1/0432/6011/7160/files/kayla_itsines_vegetarian_guide.pdf
- https://cdn.shopify.com/s/files/1/0433/5026/1911/files/90266690932.pdf
- https://cdn.shopify.com/s/files/1/0434/3542/5944/files/91008456446.pdf
- https://cdn.shopify.com/s/files/1/0430/4768/2201/files/90183028638.pdf
- https://cdn.shopify.com/s/files/1/0435/7967/0689/files/pafejafefowoti.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_off0000655a.bincc1569130076aa9fdbeaa0875a921b844c7d056384cedc813fcb1c5421a0637c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x655A | 5328 bytes |
font_01_sfnt_off0000777a.bin400999f790ccb9c5a0e7d38e20f1198889efb72f181f48404a0098c691c99bf5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x777A | 10320 bytes |
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