MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=ctet+notification+2018+pdf'. This URL is designed to redirect users to potentially harmful content. The document also exhibits characteristics of a link farm, with numerous embedded links to Shopify-hosted PDFs, suggesting an attempt to manipulate search engine results or distribute content broadly. The ML classifier strongly flagged this PDF as malicious.
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=ctet+notification+2018+pdf
- http://files.skarchitects.com/uploads/1/3/2/7/132710794/nuduve.pdf
- https://cdn.shopify.com/s/files/1/0433/4020/2142/files/vosemopewod.pdf
- https://cdn.shopify.com/s/files/1/0429/4275/9071/files/focus_on_grammar_3_answer_key.pdf
- https://cdn.shopify.com/s/files/1/0450/3198/1220/files/voganobipozubir.pdf
- https://cdn.shopify.com/s/files/1/0435/8651/9208/files/8653855179.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mupuxisupevijerabufogete.pdf
- https://cdn.shopify.com/s/files/1/0439/1731/2168/files/46392365321.pdf
- https://cdn.shopify.com/s/files/1/0437/6304/0408/files/basic_english_for_business_communication.pdf
- https://cdn.shopify.com/s/files/1/0433/7978/5891/files/98183528700.pdf
- https://cdn.shopify.com/s/files/1/0432/0568/9499/files/noxafobujodogemojewuxu.pdf
- https://cdn.shopify.com/s/files/1/0430/1576/6177/files/bewokujubiwidinadozefoze.pdf
- https://cdn.shopify.com/s/files/1/0431/3543/4901/files/53013844844.pdf
- https://cdn.shopify.com/s/files/1/0431/1253/0081/files/nemudepo.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_off000066b0.binb08a4b17ed07db271a931a1f45c8a283a27ea4ae4d653e550db8adadd9b088bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66B0 | 5172 bytes |
font_01_sfnt_off00007859.binc7f465fbb761beef799964cb47f2d74a45b3440e6c359264b98cb04dafa72209 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7859 | 10692 bytes |
font_02_sfnt_off00009cb7.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9CB7 | 4324 bytes |
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