Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e2e32dd81f73ef0…

MALICIOUS

PDF

42.8 KB Created: 2020-03-20 09:28:56 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 1e54d0b11891287450eea10ee5233878 SHA-1: 2a0498c5a2b4b18ad16916d1fb7b569ccf3a606d SHA-256: 6e2e32dd81f73ef0d1c5c73caa0f6ace45682a5dfe82c1f804cd3485f3d154ee
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many of which point to other PDF files. The document body text, though partially corrupted, includes a reference to 'plantilla excel gestion de pedidos' and a URL that appears to be related to order management. This suggests a potential phishing or scam attempt, possibly using SEO link farming techniques to distribute malicious content or redirect users. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • Embedded URL info EMBEDDED_URL
    One 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://knowtheblue.com/uploads/1/3/0/5/130542996/130542996.html#plantilla+excel+gestion+de+pedidos
    • http://cannonballlacrosse.com/uploads/1/3/0/3/130323936/josoxozug_xuzilopura_tibokesedenip.pdf
    • http://cscle.com/uploads/1/3/0/6/130639180/2434198.pdf
    • http://dariannevor.com/uploads/1/3/0/6/130621066/3800459.pdf
    • http://www.deconstrictingfilms.com/uploads/1/3/0/5/130590305/gibezejinu-palomizaren.pdf
    • http://www.oaklanddropsbeats.com/uploads/1/3/0/5/130551072/8f4c21d4a7af7.pdf
    • http://howtobuildmyconfidence.com/uploads/1/3/0/4/130483773/a3ff0cf081e631f.pdf
    • http://outdoorgamesatnight.com/uploads/1/3/0/7/130738973/dabazixulunu_punajexomo_kawumor.pdf
    • http://bridable.com/uploads/1/3/0/7/130775551/dadb9d5e6e89108.pdf
    • http://intelisched.com/uploads/1/3/0/6/130621401/9478640.pdf
    • http://mistymacal.com/uploads/1/3/0/5/130590235/fuzajetokamola-nivik.pdf
    • http://kaleidoscopeartisansguild.com/uploads/1/3/0/6/130639143/2db03e9ac.pdf
    • http://andysroofing.net/uploads/1/3/0/5/130590622/jazunozasatiju.pdf
    • http://pumiquat.com/uploads/1/3/0/5/130588821/zivexi-punotopunik-sadowenoboviwil-jodulepudonuxow.pdf
    • http://millscountychamber.com/uploads/1/3/0/7/130776499/bubin.pdf
    • http://therustiquerooster.com/uploads/1/3/0/4/130488846/nezadabelub_gemaduguzuro_fibanivapola_sebikudejuti.pdf
    • http://joemarianek.info/uploads/1/3/0/5/130551023/sezafip.pdf
    • http://treeservicemagnoliatx.com/uploads/1/3/0/6/130640031/fezuw.pdf
    • http://mairasaccessories.com/uploads/1/3/0/7/130775626/5556579.pdf
    • http://jacquelinecopeland.com/uploads/1/3/0/5/130551475/3815784.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.

FilenameKindSourceSize
font_00_sfnt_off000072b8.bin
92fd569bf750ae4139e94f9da54db345cee2be7ec31c5cee10491677c6167a0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72B8 8620 bytes
font_01_sfnt_off00009239.bin
a1600c79331cba21b3b4a1f056a9d989f02b1280d9db796053b5096bff0b23f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9239 2000 bytes

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