Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a826780b08eb7a5…

MALICIOUS

PDF

38.1 KB Created: 2020-03-19 07:52:54 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: e500bc76e461c8b252d50ddbee31d1b8 SHA-1: 658adc53195909a1175fa315e43583f7e0e15476 SHA-256: 0a826780b08eb7a5eb4687a816db8090dfc45128f896623e6a0348a06111f138
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 are numerically or generically named, suggesting a link farm or SEO spam tactic. The document body, though partially corrupted, contains a URL that appears to be a lure for a 'Mackie 1202 vlz pro power supply', likely intended to trick users into visiting malicious sites. The ML classifier strongly indicated maliciousness, and the PDF structure with numerous external links aligns with common phishing or malware distribution techniques.

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://mymissblue.com/uploads/1/3/0/7/130740320/130740320.html#mackie+1202+vlz+pro+power+supply
    • http://interactivecfos.com/uploads/1/3/0/9/130969868/farizixiwe.pdf
    • http://premiermushrooms.com/uploads/1/3/0/5/130538994/minadas_lijobovixeside_tijogivebowo_xizoromakul.pdf
    • http://muziekcursusonline.com/uploads/1/3/0/4/130489530/depoxoperakobu_wuzofo_dilonaluz.pdf
    • http://webdisk.2wolvesinc.com/uploads/1/3/0/2/130271015/xosapujexewete.pdf
    • http://mywrappingco.com/uploads/1/3/0/6/130639837/tarobidoda.pdf
    • http://tenkiwi.com/uploads/1/3/0/5/130543462/tolagebemi-rivon-rosopakesixil-pofejufiluguso.pdf
    • http://prettylittlewaistline.com/uploads/1/3/0/2/130288751/fd072.pdf
    • http://lariateers.com/uploads/1/3/0/2/130288448/9495950.pdf
    • http://pueblotreeservice.com/uploads/1/3/1/0/131070030/gelol_wixedomakodo.pdf
    • http://rubymacfashion.com/uploads/1/3/0/4/130476624/5499613.pdf
    • http://maneattractionhaircollection.com/uploads/1/3/0/4/130477566/1de514c.pdf
    • http://oasisofhope.ca/uploads/1/3/0/2/130288722/859b753.pdf
    • http://destinysites.com/uploads/1/3/0/4/130435851/5a77e68ee973.pdf
    • http://brightoncocktailcompany.co.uk/uploads/1/3/0/7/130775131/543894bef38678.pdf
    • http://cpanel.rainshadowsolar.com/uploads/1/3/0/5/130539125/fokutub_nezajazibinavu_nerizoloxuxiju_xupexib.pdf
    • http://www.shop.vballgear.com/uploads/1/3/0/4/130483629/4490685.pdf
    • http://sarrate.com/uploads/1/3/0/7/130776158/sutulawinapufa_kowoseketikured.pdf
    • http://heiko-schellenberg.com/uploads/1/3/0/8/130874490/7e009b2e33315.pdf
    • http://weakstopshere.com/uploads/1/3/0/6/130639815/1888514.pdf
    • http://noblestarzz.com/uploads/1/3/0/4/130489132/botigevid.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000682e.bin
0fe9a0fc199eb07f7c98e96f88cf9a1672887ee67b4c396ec9ff910659f80f5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x682E 9080 bytes

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