MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector link farm. The primary malicious URL identified is 'https://ttraff.ru/pify?keyword=vcenter+server+6.+7', which is designed to redirect the user to potentially harmful content. The document body, though heavily obfuscated, contains text related to 'Vcenter server 6. 7', likely serving as a lure. 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.ru/pify?keyword=vcenter+server+6.+7
- http://files.charitysciencehealth.com/uploads/1/3/0/7/130739265/84330.pdf
- http://files.ststephenmartyrschool.org/uploads/1/3/2/6/132681517/roropifa-nadifixawaveva.pdf
- http://files.jaybirdsmoke.com/uploads/1/3/0/7/130739837/limatamisuberiv.pdf
- http://files.saltydogtactical.com/uploads/1/3/1/8/131871605/76734089d599633.pdf
- https://cdn.shopify.com/s/files/1/0428/1021/2519/files/matog.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74523611049.pdf
- https://cdn.shopify.com/s/files/1/0432/5729/9097/files/wusiwekij.pdf
- https://cdn.shopify.com/s/files/1/0438/5108/8032/files/83172651078.pdf
- https://cdn.shopify.com/s/files/1/0429/1900/2279/files/bible_study_topics_for_youth.pdf
- https://cdn.shopify.com/s/files/1/0440/5349/5958/files/atenas_que_ver.pdf
- https://cdn.shopify.com/s/files/1/0431/7102/0964/files/adding_and_subtracting_vectors_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/domamusuvusuzexi.pdf
- https://cdn.shopify.com/s/files/1/0460/6341/9547/files/arcore_apk_apkpure.pdf
- https://cdn.shopify.com/s/files/1/0431/9684/2142/files/81682244479.pdf
- https://cdn.shopify.com/s/files/1/0433/3587/6776/files/possessivartikel_im_dativ_bungen.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_off00006a9c.bin4dbbf2672a85dfa712f980e8f15e560fea70ab8320204c9cff8c52e430c0aec5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A9C | 4840 bytes |
font_01_sfnt_off00007b34.bin47aa40fd77c7c04eb9919601cf06e2a12a7c3013ee46038afc08d4afcac3c4dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B34 | 12716 bytes |
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