MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm and a critical redirector link pointing to a malicious URL, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the same malicious URL and references to 'centrifugal pump parts and working pdf', suggesting a lure. The presence of numerous embedded links, many hosted on shopify.com, further supports the link farm heuristic.
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.cc/pify?keyword=centrifugal+pump+parts+and+working+pdf
- http://files.eimtaiwan.org/uploads/1/3/1/6/131606876/9f87eb5e3346efc.pdf
- http://files.nanolab.info/uploads/1/3/1/4/131438420/4184303.pdf
- http://wizuxitaz.thefourthchoir.com/uploads/1/3/2/8/132814930/temajolapod_sapowumomadono.pdf
- https://cdn.shopify.com/s/files/1/0431/4746/0768/files/39634843264.pdf
- https://cdn.shopify.com/s/files/1/0431/7410/1160/files/china_ems_tracking.pdf
- https://cdn.shopify.com/s/files/1/0430/8808/5145/files/sosobebesevefadozukebame.pdf
- https://cdn.shopify.com/s/files/1/0435/6957/8147/files/68052471190.pdf
- https://cdn.shopify.com/s/files/1/0434/0137/9996/files/97717150885.pdf
- https://cdn.shopify.com/s/files/1/0439/2134/2619/files/13457861195.pdf
- https://cdn.shopify.com/s/files/1/0429/3863/0300/files/motionjoy_windows_8.pdf
- https://cdn.shopify.com/s/files/1/0433/0727/0297/files/einstein_bagels_nutrition.pdf
- https://cdn.shopify.com/s/files/1/0433/7192/1571/files/24713264705.pdf
- https://cdn.shopify.com/s/files/1/0432/0077/4308/files/69075726453.pdf
- https://cdn.shopify.com/s/files/1/0435/3461/4688/files/gixotu.pdf
- https://cdn.shopify.com/s/files/1/0434/9332/7008/files/zozozukapu.pdf
- https://cdn.shopify.com/s/files/1/0447/9975/4397/files/kalnirnay_calendar_2020_marathi_september.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_off000073fa.binbc5ba89503f91d82591035a627b26182e7d135e56305089fccb93b4636c782fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73FA | 5424 bytes |
font_01_sfnt_off00008664.binf97544dfaf467935c532992a652fffa446b52bd83cd98ca45cd8d6ae34dc603e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8664 | 10380 bytes |
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