MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'duplicate rows in excel' and the malicious URL. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the malicious nature of the redirector. The ML classifier also strongly indicated maliciousness.
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.com/pify?keyword=duplicate+rows+in+excel
- http://files.goldensequoiadog.com/uploads/1/3/1/3/131380641/6693340.pdf
- http://files.wildlifeecology.org/uploads/1/3/1/4/131407705/3595877.pdf
- http://files.invictainstitute.com/uploads/1/3/1/3/131379591/jufapeniwovuka.pdf
- http://files.slcfoods.com/uploads/1/3/1/3/131383924/kimisega.pdf
- https://cdn.shopify.com/s/files/1/0437/8053/8529/files/nudoxumonomotaj.pdf
- https://cdn.shopify.com/s/files/1/0430/8110/5562/files/wujifulafukexaxaka.pdf
- https://cdn.shopify.com/s/files/1/0433/8964/9054/files/91145612015.pdf
- https://cdn.shopify.com/s/files/1/0428/0087/3631/files/82658117936.pdf
- https://cdn.shopify.com/s/files/1/0440/8927/8616/files/windchaser_portable_air_conditioner.pdf
- https://cdn.shopify.com/s/files/1/0434/1907/4712/files/hash_table_implementation_in_java.pdf
- https://cdn.shopify.com/s/files/1/0432/3521/3479/files/buboguk.pdf
- https://cdn.shopify.com/s/files/1/0436/6503/1321/files/kexidajirepir.pdf
- https://cdn.shopify.com/s/files/1/0437/2883/0632/files/21431790818.pdf
- https://cdn.shopify.com/s/files/1/0433/2378/5370/files/52163875495.pdf
- https://cdn.shopify.com/s/files/1/0434/0629/5201/files/93334572562.pdf
- https://cdn.shopify.com/s/files/1/0436/3422/9398/files/66244557778.pdf
- https://cdn.shopify.com/s/files/1/0429/7300/3939/files/4604623528.pdf
- https://cdn.shopify.com/s/files/1/0431/7138/1405/files/22458433019.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_off000073a7.bind31b08ee1c26fabb98bed6a353ccfc58db18de95b5d80f415fd8decc5337321d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73A7 | 5088 bytes |
font_01_sfnt_off0000851b.bin9a1f1e2fdfa6f7029ca49d5ce9ac0517f371076366f54538c04437b99e70e523 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x851B | 10388 bytes |
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