MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious File
The PDF file contains a large number of external links, many of which point to other PDF files with numeric slugs in their URLs. This pattern is indicative of a link farm designed to manipulate search engine results and drive traffic to potentially unwanted software or malicious sites. The presence of 'Advanced uninstaller pro' in the document body suggests a lure for software download. The ML classifier also flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9163
Heuristics 4
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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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External URI info PDF_URIPDF contains an external URL action
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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 http://c76vx.bpmtc.com/uploads/1/3/1/3/131383943/131383943.html#advanced+uninstaller+pro PDF link annotation
- http://petcostumesatetoile.com/uploads/1/3/0/4/130483140/guwuxinopon.pdfIn PDF document text
- http://milegion-legacyrun.org/uploads/1/3/0/6/130621116/wudoguzidozejas.pdfIn PDF document text
- http://osowskycapital.com/uploads/1/3/0/4/130483070/nitokagosepatufe.pdfIn PDF document text
- http://racelocalva.com/uploads/1/3/0/5/130538949/7874601.pdfIn PDF document text
- http://northridgeresort.com/uploads/1/3/0/7/130738841/zitikun.pdfIn PDF document text
- http://gswcardservices.info/uploads/1/3/1/1/131164129/pabesabiposezu.pdfIn PDF document text
- http://firstbytecoders.com/uploads/1/3/1/1/131164414/nisikixuw_kasepilelekamu_valudugovufele.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_003_off0000b2ca.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xB2CA | 32316 bytes |
SHA-256: 4ac546dfb533b64e50ec1b4cbbb360f70c982a17654293ee527d8ba7844bd747 |
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font_00_sfnt_off000090f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x90F8 | 9840 bytes |
SHA-256: 28356205576ab19d3f8e1cade615a2dad27a0ea07e6e85cae49ecb91cda6ab64 |
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