MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document exhibits characteristics of a SEO link farm, generating numerous links to other PDF files hosted on various domains. The embedded URLs and the heuristic firings strongly suggest an attempt to manipulate search engine results and direct users to malicious content. The presence of a 'Password-protected archive handoff' heuristic indicates a common tactic to bypass security filters by encrypting the actual payload.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://adsl-63-204-18-21.benefitplans.org/uploads/1/3/0/4/130483520/130483520.html#ejemplo+de+planeaci%C3%B3n+de+una+secuencia+did%C3%A1ctica
- http://gogetitconference.com/uploads/1/3/0/7/130776718/saxezulezuloba-tojozazuka.pdf
- http://opencloud.us/uploads/1/3/0/7/130740378/ca356f27edbac8.pdf
- http://burningfiddleproductions.org/uploads/1/3/0/5/130588506/900d0e6f96550.pdf
- http://mta-sts.kyriegallery.com/uploads/1/3/0/2/130273845/josakelizotalox.pdf
- http://inmanenergy.com/uploads/1/3/1/1/131164120/gomebutonemajerijudu.pdf
- http://sendyouasong.com/uploads/1/3/0/6/130639853/nosebig-lunojinedenakas-zuraletunuvigu-juzaxilir.pdf
- http://www.pattilooneypro.com/uploads/1/3/0/5/130539416/9587543.pdf
- http://legacyfarmsllc.net/uploads/1/3/0/7/130739290/5f8c79044c6ad.pdf
- http://optimalhospicefoundation.org/uploads/1/3/0/3/130323892/zalanu.pdf
- http://brochuaccounting.com/uploads/1/3/0/3/130323817/9665903.pdf
- http://toysdayout.com/uploads/1/3/0/4/130436242/3952212.pdf
- http://www.aftris.com/uploads/1/3/0/5/130590435/fbc2494fc.pdf
- http://suemoraes.com/uploads/1/3/0/6/130639400/muromaw_towesixid.pdf
- http://bigislandxxx.com/uploads/1/3/0/2/130291373/xegatelum.pdf
- http://faceiso.org/uploads/1/3/0/5/130551651/1774626.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://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007886.binec986876e0d14dad3fbd5628073b03d2559a5fa1e5cb16b3074e39e20324f98f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7886 | 9376 bytes |
font_01_sfnt_off000099fe.bin779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x99FE | 16036 bytes |
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