MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though obfuscated, contains text related to 'Drdo book for computer science pdf' and a URL that appears to be part of a link farm designed to attract search engine traffic. The primary attack pattern involves luring users to malicious sites through a deceptive document.
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=drdo+book+for+computer+science+pdf
- http://raboj.saint-tims.org/uploads/1/3/0/8/130874012/fajegamasufa.pdf
- http://files.sheiladavis.ca/uploads/1/3/1/3/131380308/mixubusinegafome.pdf
- http://files.torontoflameworking.ca/uploads/1/3/2/8/132815123/3bc8eeec.pdf
- http://files.key2evolve.com/uploads/1/3/0/8/130874318/zasabuxemer_xawapikiguromik_balasoge.pdf
- http://files.shooplr.com/uploads/1/3/0/8/130813079/9186f.pdf
- https://cdn.shopify.com/s/files/1/0433/6546/6266/files/adverbs_worksheets_grade_6.pdf
- https://cdn.shopify.com/s/files/1/0447/9080/8727/files/72517114328.pdf
- https://cdn.shopify.com/s/files/1/0438/1507/6002/files/viguviti.pdf
- https://cdn.shopify.com/s/files/1/0432/3747/4466/files/guwoxerefogokunem.pdf
- https://cdn.shopify.com/s/files/1/0432/3590/1602/files/51382512373.pdf
- https://cdn.shopify.com/s/files/1/0434/4440/4374/files/aesthetic_measure_birkhoff.pdf
- https://cdn.shopify.com/s/files/1/0428/5674/3079/files/upper_back_exercises.pdf
- https://cdn.shopify.com/s/files/1/0434/3506/5505/files/83463868552.pdf
- https://cdn.shopify.com/s/files/1/0431/6758/0322/files/80365879521.pdf
- https://cdn.shopify.com/s/files/1/0431/2632/5409/files/psychoterapia_poznawczo_behawioralna_popiel.pdf
- https://cdn.shopify.com/s/files/1/0429/3066/7673/files/77322995951.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_off00004a68.binb6d72b8e1921fa4ce3dc01abf0ecd4334120d2eec8ce0a8a47209506c624ba9f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A68 | 5260 bytes |
font_01_sfnt_off00005c3e.bin29034eff94188886bdcc9309cf95eb38ca8894645a9623503b9b598c4d49fd48 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C3E | 9800 bytes |
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