MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The ML classifier strongly flagged this PDF as malicious. The presence of a link farm suggests an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=kalender+2020+weeknummers+pdf, which is a primary indicator of malicious redirection.
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=kalender+2020+weeknummers+pdf
- http://saluw.pcrsd.com/uploads/1/3/0/7/130738732/fazavuvobifub.pdf
- http://files.fischerandcardamone.com/uploads/1/3/1/0/131070971/9439029.pdf
- http://wivafima.artwing.ca/uploads/1/3/1/3/131398101/gegusisib_seromo_sinaxuk_nebitig.pdf
- http://bitor.mlkccnc.org/uploads/1/3/1/6/131606490/6966688.pdf
- http://files.whyriskit.ca/uploads/1/3/2/3/132303270/zadodilater.pdf
- https://cdn.shopify.com/s/files/1/0434/1704/3111/files/19834584594.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rixozuxixewu.pdf
- https://cdn.shopify.com/s/files/1/0439/3913/5643/files/57710188411.pdf
- https://cdn.shopify.com/s/files/1/0430/1075/2663/files/nivubemija.pdf
- https://cdn.shopify.com/s/files/1/0435/2301/4824/files/typescript_tutorial_free_download.pdf
- https://cdn.shopify.com/s/files/1/0438/0386/9346/files/60245771477.pdf
- https://cdn.shopify.com/s/files/1/0432/2135/2606/files/audi_online_training.pdf
- https://cdn.shopify.com/s/files/1/0429/1297/2963/files/63942912954.pdf
- https://cdn.shopify.com/s/files/1/0427/4552/8487/files/adobe_photoshop_cs5_learning_guide.pdf
- https://cdn.shopify.com/s/files/1/0434/8854/2872/files/68713386162.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71340125447.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_off00005fd5.bin266c06b9dfdf27bab19a12e9980bbf443874ab8f75f275d29fa9249bf0a2fcbb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FD5 | 5588 bytes |
font_01_sfnt_off000072d0.bin7430d9c672a9c35258fb13e85e9e6755fcf78caa744c14d753ac8d7a2ac0130d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72D0 | 14068 bytes |
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