Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d56e39b59e27d7f…

MALICIOUS

PDF

40.8 KB Created: 2020-03-30 06:54:29 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: 854ed70866095e81d958d361d0ff0fed SHA-1: 1515ca1fc4fa9ae5dddf5a88e06cd0536457d617 SHA-256: 7d56e39b59e27d7f085308c790dd555e3e297d04120965a7bb7cf4fda51518fa
96 Risk Score

Malware Insights

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

The PDF document contains numerous external links, many of which are structured as SEO-optimized PDF slugs, suggesting a link farm or content stuffing operation. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports malicious intent. The document body, though partially corrupted, contains a reference to a popular book title, likely used as a lure to disguise the malicious nature of the links.

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://74-123-79-135.mgwnet.com/uploads/1/3/0/5/130540406/130540406.html#the+seven+spiritual+laws+of+success+by+deepak+chopra+pdf PDF link annotation
    • http://thebalancelifestyle.com/uploads/1/3/0/8/130874424/bdb9b72bc96.pdfIn PDF document text
    • http://shorelineairport.com/uploads/1/3/0/8/130873875/mozosotirivipapo.pdfIn PDF document text
    • http://quantology.net/uploads/1/3/0/3/130323260/9a5ffcbed549.pdfIn PDF document text
    • http://nroseproductions.com/uploads/1/3/0/2/130289658/xinalu_jofexasexir.pdfIn PDF document text
    • http://larissa.studio/uploads/1/3/1/0/131070866/4013393.pdfIn PDF document text
    • http://daturafashion.com/uploads/1/3/0/5/130590054/60cc6c2843b.pdfIn PDF document text
    • http://cooparch.net/uploads/1/3/0/7/130776428/tamig-pejon.pdfIn PDF document text
    • http://visionplanner.org/uploads/1/3/0/4/130476086/nijuzamujiziwi_zurubuvisoju_loxutanur_zisezu.pdfIn PDF document text
    • http://gaylemartens.com/uploads/1/3/0/6/130639776/jipeboj.pdfIn PDF document text
    • http://vennecomidamediterranea.com/uploads/1/3/0/3/130323633/borisubiv-jusivoxa.pdfIn PDF document text
    • http://treasuredbits.shop/uploads/1/3/0/2/130288549/wiwiwef.pdfIn PDF document text
    • http://jamontoya.com/uploads/1/3/0/2/130288893/45ce5f473b.pdfIn PDF document text
    • http://arstorey.com/uploads/1/3/0/2/130287284/7001489.pdfIn PDF document text
    • http://glazeandblazeart.com/uploads/1/3/0/8/130874410/tefewexa.pdfIn PDF document text
    • http://colleenvtucker.com/uploads/1/3/0/4/130478205/8592147.pdfIn PDF document text
    • http://collegepark.com/uploads/1/3/0/4/130477890/29c55f89fa02.pdfIn PDF document text
    • http://bdw-binka.com/uploads/1/3/0/5/130550848/8259b3b8.pdfIn PDF document text
    • http://nicoleoglesby.net/uploads/1/3/0/6/130604110/3530711.pdfIn PDF document text
    • http://financialfinderz.com/uploads/1/3/0/7/130774994/a689c.pdfIn PDF document text
    • http://ink8boardtattoo.com/uploads/1/3/0/6/130640126/najozibotojamo.pdfIn PDF document text
    • http://melanatedmuses.com/uploads/1/3/1/3/131380284/xobubawodozokubowupo.pdfIn PDF document text
    • http://thechihuahua.club/uploads/1/3/0/6/130621732/gusir.pdfIn 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

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000765b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x765B 7900 bytes
SHA-256: 6946755ea63ac159238701686a5498fc3757fe7065e8b0378d2d5fc3dc8e2611

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