MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to redirector infrastructure or potentially malicious content. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://cctraff.ru/aws?keyword=writing+an+informative+essay+about+making+sacrifices+prewriting as malicious. The ML classifier also strongly indicated maliciousness. The document body itself appears to be obfuscated or corrupted, but the presence of numerous links suggests a link farm or redirection attack.
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://cctraff.ru/aws?keyword=writing+an+informative+essay+about+making+sacrifices+prewriting
- https://cdn-cms.f-static.net/uploads/4377931/normal_5f9c9c56b6a1a.pdf
- https://gejovekozeja.weebly.com/uploads/1/3/4/4/134401956/tokazejuba.pdf
- https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/7971455.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0438/8831/2488/files/marvels_iron_man_3_-_jarvis_apk.pdf
- https://cdn.shopify.com/s/files/1/0479/3237/5207/files/wuzimatotip.pdf
- https://cdn.shopify.com/s/files/1/0501/5430/7774/files/koxigasukizime.pdf
- https://cdn.shopify.com/s/files/1/0432/1922/2687/files/insinkerator_model_sst-fltr_manual.pdf
- https://cdn.shopify.com/s/files/1/0496/2700/5094/files/sefodivipogazune.pdf
- https://cdn.shopify.com/s/files/1/0428/4160/4263/files/transmission_of_heat_class_11.pdf
- https://cdn.shopify.com/s/files/1/0504/3011/6014/files/54425528682.pdf
- https://cdn.shopify.com/s/files/1/0438/2425/1042/files/gestion_de_riesgos_pmbok.pdf
- https://s3.amazonaws.com/numegubowalonan/60254706890.pdf
- https://cdn.shopify.com/s/files/1/0436/8377/4614/files/90146708918.pdf
- https://s3.amazonaws.com/rizijubovapuk/wovikoruforufe.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007185.bin6f2ce44fd6bd81c1bdb4c6b79e73b04e26cb2d5c354cdafd1454752bd992abb4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7185 | 5772 bytes |
font_01_sfnt_off0000854a.bin97c4f7aa2aed68c8835acc075a7915615ff0d5137f87de2802ccdbdb558e459e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x854A | 10276 bytes |
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