Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d3d2361771f4bf0…

MALICIOUS

PDF

44.3 KB Created: 2020-04-11 10:48:04 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-08-25
MD5: e78473ea467afb24b9493415abf8b542 SHA-1: 10090e736815c60e48944d9367f81059404d21e1 SHA-256: 9d3d2361771f4bf097b8888f6930bd551731d8d6880fc1521f3f8779066a190d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF file was flagged by a machine learning classifier as malicious. It contains a large number of external links, many pointing to PDFs with numeric slugs, suggesting a link farm or SEO abuse tactic. One of the primary external links, http://spiritualdirectionminstry.com/uploads/1/3/0/8/130813888/130813888.html#led+driver+plug, indicates a lure related to a 'Led driver plug' to direct users to potentially malicious content.

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://spiritualdirectionminstry.com/uploads/1/3/0/8/130813888/130813888.html#led+driver+plug PDF link annotation
    • http://onejohnfive.com/uploads/1/3/0/9/130969922/nupex_luzusowimiwalo.pdfIn PDF document text
    • http://saletacoma.com/uploads/1/3/0/5/130543588/4bf9c0b.pdfIn PDF document text
    • http://kcindustries.net/uploads/1/3/0/6/130604281/9760868.pdfIn PDF document text
    • http://vegascitywidemovers.com/uploads/1/3/0/2/130287997/b93bfdf688.pdfIn PDF document text
    • http://premoilcorp.com/uploads/1/3/0/8/130874299/3603347.pdfIn PDF document text
    • http://bmwalkerenterprises.com/uploads/1/3/0/6/130640046/8302302.pdfIn PDF document text
    • http://wowstudentcouncil.com/uploads/1/3/1/3/131384185/wazazulez-gabevaxu.pdfIn PDF document text
    • http://backtopulse.com/uploads/1/3/0/2/130271121/8a5d16bec8ea9.pdfIn PDF document text
    • http://misscyrarteacher.ca/uploads/1/3/0/8/130874299/7262697.pdfIn PDF document text
    • http://lostandliving.com/uploads/1/3/0/6/130604521/jitatamogab-pujodujumu.pdfIn PDF document text
    • http://mountain-ammo.com/uploads/1/3/0/8/130874123/loxiweta_libazesubovuwol_kotomafe.pdfIn PDF document text
    • http://ocpoolinspector.com/uploads/1/3/0/2/130289476/kalepivural.pdfIn PDF document text
    • http://losangelespersonalshoppers.com/uploads/1/3/0/5/130540437/tagopusopupemixofomi.pdfIn PDF document text
    • http://discoveryelectricbikes.com/uploads/1/3/0/6/130621276/jadufo-xejepegufaxuw-pawejavavasari.pdfIn PDF document text
    • http://lovehouse.org/uploads/1/3/1/3/131398159/8014673.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000781d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x781D 9120 bytes
SHA-256: a435579ddc32b24c8e9d0176857d7808bbd2dc36f86f5bc04e8271979d434b95
font_01_sfnt_off00009ae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AE3 2828 bytes
SHA-256: cfb3357b20fb01955c1e4a0ed568c791e3a97db8f0fbaa18432a833eaa1d19da

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