Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ceea4fa01f785d0…

MALICIOUS

PDF

44.1 KB Created: 2020-03-07 23:50:46 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 3fd6e022a79b16a6d06c6c0dc28a6428 SHA-1: f59aa49349df42c3b4f885f8a86130bb1852b596 SHA-256: 9ceea4fa01f785d0a33609bbc12c2cd1db010ad1845b4097dc2534c5c06e2179
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, indicating a likely attempt to drive traffic to potentially harmful content. No scripts were extracted, and the document body is heavily obfuscated, limiting further analysis of the immediate payload.

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://host17.carmichaelnl.com/uploads/1/3/0/3/130323932/130323932.html#rai+therapy+thyroid+cancer PDF link annotation
    • http://myhempisbomb.com/uploads/1/3/0/5/130588956/43828f964bafe7.pdfIn PDF document text
    • http://paganacademy.org/uploads/1/3/0/4/130483184/0284ed07ee.pdfIn PDF document text
    • http://www.innercitypropertymangement.com/uploads/1/3/0/4/130476427/dafebividojixokate.pdfIn PDF document text
    • http://rachelreding.net/uploads/1/3/0/4/130436521/kifosogo.pdfIn PDF document text
    • http://hostmaster.weingut-janneck.de/uploads/1/3/0/9/130969065/wudolatip_matademelupo.pdfIn PDF document text
    • http://host240.powermaxusa.com/uploads/1/3/0/7/130776054/bepakajejoxizobupu.pdfIn PDF document text
    • http://itsnotyouitsthebook.com/uploads/1/3/0/6/130639815/salurusozozukozutabi.pdfIn PDF document text
    • http://www.metuchendentistry.com/uploads/1/3/0/5/130551604/101988.pdfIn PDF document text
    • http://nateveorganics.com/uploads/1/3/0/6/130621243/379894.pdfIn PDF document text
    • http://www.tandmdesignsllc.com/uploads/1/3/0/7/130739155/9063515fc5bdc.pdfIn PDF document text
    • http://webpointconsultants.com/uploads/1/3/0/8/130814283/4265933.pdfIn PDF document text
    • http://mohawk.chambernation.com/uploads/1/3/0/5/130551433/9568664.pdfIn PDF document text
    • http://josephcua.com/uploads/1/3/0/3/130313343/45cea6.pdfIn PDF document text
    • http://npbusinessconsultants.com/uploads/1/3/0/7/130775092/b6338112.pdfIn PDF document text
    • http://lowcostphotobooths.co.uk/uploads/1/3/0/6/130604888/zulip_seditaz_bunifozimuxe_rorilipixirona.pdfIn PDF document text
    • http://balkanco.com/uploads/1/3/0/5/130588202/9928e404b.pdfIn PDF document text
    • http://ecsm.fr/uploads/1/3/0/7/130739043/rutuwijodeko_sexobozonu_pajelofow_pitak.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
🗂 Part of campaign: chattanoogasoundmachine.com 3 samples

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_off00008568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8568 7788 bytes
SHA-256: a5d49ee26f99d2a43931c2cebfd5696b02dfe359c4d5cd7dce7c7053565744ed

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