MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO abuse tactic. One of the primary links, 'https://ttraff.ru/pify?keyword=c+char+array+to+string', is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness.
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=c+char+array+to+string
- http://files.colonialridgegolf.com/uploads/1/3/1/4/131438419/7861758.pdf
- http://pagakeb.communitycolab.co.uk/uploads/1/3/0/7/130739625/tumeraz.pdf
- http://files.tabsproductions.co.uk/uploads/1/3/0/7/130775245/3183470.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0438/3100/1238/files/bubopasifafipumom.pdf
- https://cdn.shopify.com/s/files/1/0436/9124/5733/files/85981325786.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2934473971.pdf
- https://cdn.shopify.com/s/files/1/0434/0151/1068/files/mixozerokenotomuroji.pdf
- https://cdn.shopify.com/s/files/1/0432/6863/6834/files/vokizuxu.pdf
- https://cdn.shopify.com/s/files/1/0430/9277/0977/files/gaxinixefepasovenevavoder.pdf
- https://cdn.shopify.com/s/files/1/0435/7583/6840/files/66600317160.pdf
- https://cdn.shopify.com/s/files/1/0438/4410/8445/files/57903911322.pdf
- https://cdn.shopify.com/s/files/1/0433/0084/7781/files/beguburukefomijivote.pdf
- https://cdn.shopify.com/s/files/1/0431/7492/0347/files/paxuxokoxazo.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000057e8.bin03cacfc6ffb1deb63ea0d09a2a3ac0a5119e879856d80d76c73cd38cbf3d62b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x57E8 | 7520 bytes |
font_01_sfnt_off000070cc.binf78c76d99ab5910221a76e51f86513025c37b58af256949a2b7ddd411f37989b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70CC | 5036 bytes |
font_02_sfnt_off000081f0.binc833ccbeab843696fe8ef35697704947ccb58302e10804239dd8cbdf032819b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x81F0 | 9752 bytes |
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