MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious File
The PDF document was flagged as malicious by an ML classifier and contains numerous embedded links. One critical heuristic identified a link to known malicious redirector infrastructure (ttraff.ru), and another noted a large number of external PDF links, suggesting a link farm or distribution mechanism. The document body contains garbled text but includes the URL 'https://ttraff.ru/pify?keyword=akreditasi+universitas+negeri+malang+pdf', reinforcing the malicious redirector finding. No scripts were extracted from this sample.
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=akreditasi+universitas+negeri+malang+pdf
- http://files.designtimegnc.com/uploads/1/3/0/8/130874139/2354841.pdf
- http://files.runningwildusa.com/uploads/1/3/0/7/130739238/7449806.pdf
- http://files.photographybydennisj.com/uploads/1/3/1/6/131606965/9746010.pdf
- https://cdn.shopify.com/s/files/1/0433/3273/1038/files/zetutofotojutisojewumuso.pdf
- https://cdn.shopify.com/s/files/1/0437/8296/3349/files/88785607136.pdf
- https://cdn.shopify.com/s/files/1/0432/6984/9246/files/44506869153.pdf
- https://cdn.shopify.com/s/files/1/0429/7133/2767/files/82033805863.pdf
- https://cdn.shopify.com/s/files/1/0430/4211/1650/files/robstown_topix_forum.pdf
- https://cdn.shopify.com/s/files/1/0450/7897/0533/files/que_es_la_anuria.pdf
- https://cdn.shopify.com/s/files/1/0430/7946/7170/files/13086693785.pdf
- https://cdn.shopify.com/s/files/1/0430/7098/0245/files/pharmacologie_de_l_appareil_respiratoire.pdf
- https://cdn.shopify.com/s/files/1/0431/2717/7365/files/begoxuvutetiwinaxogi.pdf
- https://cdn.shopify.com/s/files/1/0433/0356/7515/files/77345082610.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_off0000688a.bin10a42c9c62f861307a20a7131dd8bfe2bd1e540f224d5095ed48ba82051c6880 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x688A | 5472 bytes |
font_01_sfnt_off00007b18.bin51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B18 | 1800 bytes |
font_02_sfnt_off000083a6.bin232a8ec33390172f986a457cbe3a9962ecb91078316b28f0b9c714dc94a4593a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83A6 | 13496 bytes |
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