MALICIOUS
192
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the string '2k16 download apk' and the malicious redirector URL, suggesting a lure to download potentially malicious Android application packages. The presence of numerous PDF links, many benign, likely serves to obscure the malicious intent and evade detection.
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.link/wix?keyword=2k16+download+apk In PDF document text
- http://files.e67agency.com/uploads/1/3/1/4/131407571/7038982.pdfIn PDF document text
- http://files.truewealthfg.com/uploads/1/3/2/7/132710687/migejowo.pdfIn PDF document text
- http://files.elixrpickup.com/uploads/1/3/1/4/131438423/xatojojifima.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://3cec926c-fd27-4c3d-9b02-f82c4eea4bb5.filesusr.com/ugd/12daa7_9bb45c4520a0414b9ab0489cc51e51fc.pdf?index=trueIn PDF document text
- https://80312c28-df3b-44c1-b69f-f41246cdf596.filesusr.com/ugd/b73feb_41da1b02f6ef4e7d856aae7126bf297d.pdf?index=trueIn PDF document text
- https://66b36d59-06ab-4732-aa35-1ebaf4522759.filesusr.com/ugd/3f8d85_0c7b0bb7085e4b38a0a32a4d2be638dd.pdf?index=trueIn PDF document text
- https://26854c48-a034-4159-9b8c-d4ec716eeb30.filesusr.com/ugd/717a42_6ee954bf55604d2caad585fe13fa479b.pdf?index=trueIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7304/4642/files/44995913442.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5845/3918/files/55611289500.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5955/2166/files/96468943232.pdfIn PDF document text
- https://5dfb6536-a6ae-440a-ab46-b87bee071a4f.filesusr.com/ugd/f09a9d_e92f2bb1cea6417791a7ccd1ffcd0136.pdf?index=trueIn PDF document text
- https://e08c7630-b5c7-46de-b1b3-09f64f4e4e40.filesusr.com/ugd/b56239_5a5553c5b894419e84431954e4280264.pdf?index=trueIn PDF document text
- https://11520358-7272-4169-a16e-c95be67cf760.filesusr.com/ugd/96564c_f519638ae0184f8ba872f34a268c3fb0.pdf?index=trueIn PDF document text
- https://200cbb3a-f808-11ea-a328-fc4dd43d38a6.filesusr.com/ugd/fd4c29_f8822443eeda4fc98dff82760e6ff4bd.pdf?index=trueIn 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_off00005c1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C1C | 5080 bytes |
SHA-256: 74ad7917dd4de880f0b42cec6377447520fc4ac701b2787f132e0a09a009c6ef |
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font_01_sfnt_off00006d93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D93 | 10272 bytes |
SHA-256: 36d9fbc0689fed82c5d48c963e6f3552919c44c386dcceeb3d2433f463a12c59 |
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