MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF document contains a large number of embedded links, identified as a link farm, designed to redirect users to malicious sites. One of the primary links points to a known malicious redirector infrastructure. The document's content is presented as a 'transfer letter to employee pdf', a common lure for phishing attacks. No scripts were extracted, but the extensive use of malicious links indicates a strong intent to lead the user to further compromised content.
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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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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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/wb?keyword=transfer%20letter%20to%20employee%20pdf In PDF document text
- http://files.willsshowem.com/uploads/1/3/2/7/132712407/tigejexafod-fulaxolito.pdfIn PDF document text
- http://files.aboundingfaithnj.org/uploads/1/3/0/9/130969593/xugafije.pdfIn PDF document text
- http://files.boob-ology.co.uk/uploads/1/3/2/3/132303374/vinewagejar-kubojaba-rajezutiwugudow-vifiwejapi.pdfIn PDF document text
- http://files.missycampmusic.com/uploads/1/3/2/6/132680915/2adb877e6f7f295.pdfIn PDF document text
- http://files.issportstherapy.com/uploads/1/3/1/4/131406717/3894613.pdfIn PDF document text
- http://files.julianbullmagic.com/uploads/1/3/2/8/132816195/8366476.pdfIn PDF document text
- http://files.professionalcatcare.com/uploads/1/3/1/3/131383954/7581846.pdfIn PDF document text
- http://files.iwfmasters.org/uploads/1/3/1/4/131454501/belivir_rafomepiw_vasasusanovuwa_jazarofuj.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://wipafuvuz.files.wordpress.com/2020/06/tegeluloguzapojofofojer.pdfIn PDF document text
- https://tagugela.files.wordpress.com/2020/07/posol.pdfIn PDF document text
- https://neretive.files.wordpress.com/2020/07/27290686459.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9930/8711/files/zadivuvumedaxujazavuzo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3426/4231/files/merasefid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5689/0013/files/54819550278.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9775/9643/files/jiwujowolopup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0415/8375/files/71841457057.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70278744099.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0123/4076/files/jamasefu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/48787523288.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9923/5228/files/46798885609.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0799/1208/files/59951186075.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_off0000778f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x778F | 4980 bytes |
SHA-256: 620d1ad145bad642b39af4a75c6a586370e9b28f199f577ed751b7d0b9b3a8c6 |
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font_01_sfnt_off00008864.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8864 | 10640 bytes |
SHA-256: 73045e1a09a8193fb6210c54ebf4be414341bf0b936f13b139be22c7a36c3839 |
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