MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by an ML classifier and contains a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains the malicious URL which is likely used to lure victims to a compromised site. The PDF also functions as a link farm, distributing links across multiple domains, many of which are on disposable hosting, to obscure the malicious redirector.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://cctraff.ru/strik?keyword=how+animals+eat+their+food+class+3 In PDF document text
- https://cdn-cms.f-static.net/uploads/4384836/normal_5f9233998ce3f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384045/normal_5f9153b6ee05c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367302/normal_5f890a8068d1e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367279/normal_5f8737a94f264.pdfIn PDF document text
- https://xorozatu.weebly.com/uploads/1/3/4/4/134461248/651683.pdfIn PDF document text
- https://mibebedobosuv.weebly.com/uploads/1/3/4/3/134322580/jazifip.pdfIn PDF document text
- https://sepenunaxob.weebly.com/uploads/1/3/0/7/130776074/jojugaxum.pdfIn PDF document text
- https://garigewofunem.weebly.com/uploads/1/3/4/3/134314314/bakekosoj.pdfIn PDF document text
- https://fupexorugukemig.weebly.com/uploads/1/3/0/8/130814763/4583579.pdfIn PDF document text
- https://zadujemerumid.weebly.com/uploads/1/3/2/6/132695269/vunilulebaliga-kitoxilotuwuvup.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/214457f7-f7b2-487a-aa53-bfb99912f3c8/zezubezejadijilijafivemis.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f4e8b697-5f03-4619-992d-26f8ef6f05b3/picasa_latest_version_official_website.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/58b1fde9-a616-4e7b-a241-2b7b17604e8a/95537092552.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/be06d75e-742a-4f3e-83cb-26186e22c288/58293944495.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/33aff4a5-5313-4ba7-a166-8ddd7305c132/sawebagetudezufutuwe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9502/4025/files/tds_challan_280_format_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8460/1752/files/fanuc_servo_amplifier_alarm_codes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0462/3876/1109/files/96393041394.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7266/8319/files/how_to_invite_friends_on_minecraft.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0478/1791/6575/files/zaxubipizewubesomujomot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0484/4548/9317/files/69493164381.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_off00005488.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5488 | 5476 bytes |
SHA-256: ab7267d30eebfb23f2f938355f32e2f67bba4a62ae9ec597b33a7929161076b0 |
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font_01_sfnt_off000066fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66FE | 10296 bytes |
SHA-256: 7b610ad967e954fb1b56ace7b3971aa34a219101b51a1aa034a9c93ef0e31540 |
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