Malicious PDF — malware analysis report

Static analysis result for SHA-256 9010d5f68857b489…

MALICIOUS

PDF

40.3 KB Created: 2020-05-22 06:50:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: ca23ea118d266421037f09acc8f529e7 SHA-1: 3dcefea4cdd7840e3b6d51a613811f6e28f82971 SHA-256: 9010d5f68857b489f2b70dc8aefdc08c19b27d2c00bc29da8335d177062219f2
104 Risk Score

Malware Insights

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

The PDF document contains a lure for "Betet result 2011 pdf download" and exhibits a PDF link farm heuristic, indicating it's designed to redirect users to external malicious content. Numerous URLs were extracted, suggesting a broad distribution effort. The document body text, though partially obfuscated, contains references to these URLs and the download lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://kkyulekaihu.br3h.com/uploads/1/3/0/5/130550981/130550981.html#betet+result+2011+pdf+download PDF link annotation
    • http://capitalstonemasonry.com/uploads/1/3/1/4/131453915/7585622.pdfIn PDF document text
    • http://ublyft.com/uploads/1/3/0/4/130476970/rozevoleku_dadekidumi.pdfIn PDF document text
    • http://theviewegypttours.com/uploads/1/3/0/5/130590163/pawemaz_vozabito_xizen.pdfIn PDF document text
    • http://sevenfourconstruction.com/uploads/1/3/0/7/130739344/f140039.pdfIn PDF document text
    • http://nollcompliance.com/uploads/1/3/0/5/130588352/rodabujugeganod.pdfIn PDF document text
    • http://rainforestreadingadventure.com/uploads/1/3/0/4/130436313/715966.pdfIn PDF document text
    • http://oaklandauthentic.com/uploads/1/3/0/3/130313463/729724.pdfIn PDF document text
    • http://pianowithjamie.com/uploads/1/3/0/6/130639905/837ec.pdfIn PDF document text
    • http://johnbolesgallery.com/uploads/1/3/0/8/130813786/peroma.pdfIn PDF document text
    • http://jahielworkshops.com/uploads/1/3/1/6/131637186/verazemuxa.pdfIn PDF document text
    • http://zomervoetbaldagen.nl/uploads/1/3/0/6/130604050/6137da3fb714f.pdfIn PDF document text
    • http://taxfirmsolutions.com/uploads/1/3/0/6/130620365/3005473.pdfIn PDF document text
    • http://architrust.co/uploads/1/3/0/5/130590464/f1067ec7d7e6e76.pdfIn PDF document text
    • http://wjackdenningportfolio.com/uploads/1/3/1/4/131483588/7882029.pdfIn PDF document text
    • http://edenbrandknits.com/uploads/1/3/0/3/130313729/ralidiremivezufu.pdfIn PDF document text
    • http://theartofawe.org/uploads/1/3/1/4/131436971/dotexamo-monabalu.pdfIn PDF document text
    • http://finav.br/uploads/1/3/1/3/131398100/d4f32d8239eb9.pdfIn PDF document text
    • http://goodcausedocs.com/uploads/1/3/0/7/130740489/7610674.pdfIn PDF document text
    • http://nonaspreserves.com/uploads/1/3/0/7/130739211/b19944b3bee29.pdfIn PDF document text
    • http://neoana.com/uploads/1/3/0/6/130605133/fonesitupifejerenex.pdfIn PDF document text
    • http://jftsd.com/uploads/1/3/0/7/130776519/8397002.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
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

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_off00007132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7132 10664 bytes
SHA-256: 341eb075c816fd5eaf018f4a06ab17136a226cca4e65f94ca4345874ff4d9338

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