Malicious PDF — malware analysis report

Static analysis result for SHA-256 2872ed18b35fa1ce…

MALICIOUS

PDF

39.8 KB Created: 2020-03-27 07:06:25 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-07
MD5: 6d96a0292b1e16bd36ab733694a918ec SHA-1: a4299aaf5b723d59d4f6a9c31217742dcfcd6915 SHA-256: 2872ed18b35fa1ce1f35bbe0e062d0e382d92f0352051462156070dedc5f63d2
96 Risk Score

Malware Insights

MITRE ATT&CK
T1598 Gather Victim Identity Information T1204 Malicious Link

This PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The embedded URLs point to various PDF files hosted on different domains, suggesting a link farm or a distribution mechanism for further malicious content. No scripts were extracted from this sample, limiting the ability to determine the exact payload or execution method.

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://templestoweroofing.com/uploads/1/3/0/9/130969934/130969934.html#estado+de+utilidades+retenidas+wikipedia PDF link annotation
    • http://strategyforall.com/uploads/1/3/0/7/130775624/wirekipa.pdfIn PDF document text
    • http://autodiscover.platinumdancecompany.com/uploads/1/3/0/6/130622012/mevexolifeba.pdfIn PDF document text
    • http://www.yogamirileti.com/uploads/1/3/0/7/130739373/4616752.pdfIn PDF document text
    • http://smt-metalltechnik.com/uploads/1/3/0/5/130539223/lifedezazimem.pdfIn PDF document text
    • http://mta-sts.iskamsos.info/uploads/1/3/0/5/130550758/3175273.pdfIn PDF document text
    • http://handballforhope.com/uploads/1/3/0/6/130604940/1cd45bd90b018.pdfIn PDF document text
    • http://fintoro.com/uploads/1/3/0/6/130620473/2171430.pdfIn PDF document text
    • http://sublimators.net/uploads/1/3/0/3/130379315/2924146.pdfIn PDF document text
    • http://seattleprenatalmassage.com/uploads/1/3/0/4/130476332/fekadukufokosiluximi.pdfIn PDF document text
    • http://prorrs.com/uploads/1/3/0/8/130815192/fadisadimoware.pdfIn PDF document text
    • http://miraclevalleyceylon.com/uploads/1/3/0/5/130540009/6840024.pdfIn PDF document text
    • http://pdstudios.net/uploads/1/3/0/4/130483373/rivejoborikejavor.pdfIn PDF document text
    • http://natesblog.org/uploads/1/3/0/4/130478004/zatopifujajuza.pdfIn PDF document text
    • http://www.alpxpress.com/uploads/1/3/0/7/130775176/75ec925.pdfIn PDF document text
    • http://afterhourshub.com/uploads/1/3/0/8/130814469/701663.pdfIn PDF document text
    • http://reviewmywebpage.com/uploads/1/3/0/8/130814784/a62ca8b4.pdfIn PDF document text
    • http://grandstafflaw.com/uploads/1/3/0/7/130776147/tokizasokonajowab.pdfIn PDF document text
    • http://serenityskinexperts.com/uploads/1/3/0/6/130604363/52cb3e275191.pdfIn PDF document text
    • http://kashmedia.biz/uploads/1/3/0/7/130740627/c7cc8a40a472dc.pdfIn PDF document text
    • http://awakenedpaths2.com/uploads/1/3/0/5/130551653/81a24dea10.pdfIn PDF document text
    • http://heritagedesignerhomes.net/uploads/1/3/0/7/130776183/vokejowukaze-kokanusagekebo.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

Related samples 2

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_off00007217.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7217 8076 bytes
SHA-256: 5a4768e921f2702451354174043ed753591cb9f332db5bbfc89d198445fb6f63

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