MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. The document body, though partially corrupted, contains the same URL and references to 'ebcdic to ascii conversion', likely a lure. The PDF also contains a mass external PDF link farm, with many links hosted on shopify.com, but the primary malicious indicator is the ttraff.ru redirector.
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=ebcdic+to+ascii+conversion+in+informatica
- http://files.daugustbaertlein.com/uploads/1/3/1/8/131871705/donebipuvufi.pdf
- https://cdn.shopify.com/s/files/1/0431/0623/8613/files/sukiwurunawalafinev.pdf
- https://cdn.shopify.com/s/files/1/0431/9890/6528/files/brocade_fabric_os_upgrade_guide_8._2.pdf
- https://cdn.shopify.com/s/files/1/0435/7901/5327/files/bootstrap_icons_fa.pdf
- https://cdn.shopify.com/s/files/1/0434/9578/4600/files/fda_guidelines_immunogenicity.pdf
- https://cdn.shopify.com/s/files/1/0429/7061/1861/files/64460628443.pdf
- https://cdn.shopify.com/s/files/1/0437/9190/9025/files/51393641232.pdf
- https://cdn.shopify.com/s/files/1/0432/2865/9869/files/39837693850.pdf
- https://cdn.shopify.com/s/files/1/0428/0510/0711/files/96714748765.pdf
- https://cdn.shopify.com/s/files/1/0462/2758/7223/files/zolunilomopimas.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007f5d.bin47db9d5866405fbf46d5b7bc7e9407b17a15d27f6c63fce989cb63eff1dbf4a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F5D | 5292 bytes |
font_01_sfnt_off0000914b.bin51f8a31c916f3c34381f635c8c0de19b23f0b57f0f4fe60b4d1da504c3ffe292 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x914B | 16524 bytes |
font_02_sfnt_off0000c48d.bine93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC48D | 16204 bytes |
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