Malicious PDF — malware analysis report

Static analysis result for SHA-256 46c40925ed05c968…

MALICIOUS

PDF

39.0 KB Created: 2020-03-21 20:59:35 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: d42187ba6f0dad46de4ced797d67ac64 SHA-1: 95082eb811a7665b02bfb928f4eb799047980815 SHA-256: 46c40925ed05c968a96d55b62864d6d333e834e77627d99b3ff276add3f6ebd7
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection to malicious content. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains URLs that are consistent with the link farm findings, indicating a likely attempt to direct users to potentially harmful websites.

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://abhiandaahan.com/uploads/1/3/0/8/130874050/130874050.html#joseph+and+the+amazing+technicolor+dreamcoat+film+trailer
    • http://menusie.com/uploads/1/3/0/6/130640220/6031637.pdf
    • http://roofingcompanydentontx.com/uploads/1/3/0/5/130546497/gogusami-rekawabegomibu.pdf
    • http://wangarattaequestriancentre.com/uploads/1/3/0/2/130274098/3941db84.pdf
    • http://mail.reigninspain.org/uploads/1/3/0/5/130551264/3864883.pdf
    • http://rencherplumbingandboiler.com/uploads/1/3/0/5/130542953/xopazinudibiw_nitibifisulip_daxifodosedubu.pdf
    • http://allheartcprtx.com/uploads/1/3/0/8/130814014/c955b617d2802.pdf
    • http://tylerkazda.com/uploads/1/3/0/6/130621591/waniximenaxa.pdf
    • http://hostmaster.rlroofingandbuilding.co.uk/uploads/1/3/0/4/130435712/4897712.pdf
    • http://botofoundation.org/uploads/1/3/0/5/130539235/mavojivaw.pdf
    • http://newtestamentchristianschool.com/uploads/1/3/0/7/130739781/bixezeji.pdf
    • http://littlelearnerschildcare.org/uploads/1/3/0/6/130603889/luwumozufenimilegoru.pdf
    • http://vinnycapp.com/uploads/1/3/0/7/130776166/wixevapetuxaveraper.pdf
    • http://mmcarterconsult.com/uploads/1/3/0/8/130814758/dozet_xadeberudesapu_dezuwof_lutizu.pdf
    • http://royalcannabisco.ca/uploads/1/3/0/2/130272629/lijunisikeveja_mofasinomu.pdf
    • http://sterkneus.org/uploads/1/3/1/1/131164066/20936cfdfbb90.pdf
    • http://parkscore.net/uploads/1/3/0/5/130590393/774b80af30701.pdf
    • http://dayveboy.com/uploads/1/3/0/2/130289696/fakotoma.pdf
    • http://www.833photos.com/uploads/1/3/0/6/130605493/8237498.pdf
    • http://beater500.com/uploads/1/3/0/4/130489358/2b8c9792657f.pdf
    • http://petportraitsbymelonee.com/uploads/1/3/0/3/130313388/3695606.pdf
    • http://sedenobrothers.com/uploads/1/3/1/0/131071082/222c9c007c6bf6.pdf
    • http://profiledesigntooling.co.uk/uploads/1/3/0/7/130739789/zizaj-lupiropole.pdf
    • http://tormentasdeverano.com/uploads/1/3/0/5/130539090/javogamusapewip_bebevol_renas.pdf
    • http://dry-2-go.com/uploads/1/3/0/7/130738830/sujodolila_gurufegegumo_mupom_pamunifan.pdf
    • http://tormentasdeverano.co
    • 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_off00006cdb.bin
16d596e893b807700dbda5a17bee2cbb34db1e3a697270ea392a3e7081433a08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CDB 7996 bytes

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