Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e62a8b15d4154cc…

MALICIOUS

PDF

73.9 KB Created: 2020-03-17 11:49:26 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: 9305be9adbf8abd57aee4e365e107d3c SHA-1: bd0481a77a6e5a53d85d315cb2b69e2a1f859fee SHA-256: 4e62a8b15d4154ccafe0f111291d9ef7a256e263bc29a2c1a99b580251cae7e4
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, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The embedded URL in the document body also leads to one of these external resources. The primary goal appears to be directing users to a network of linked documents, potentially for malicious distribution or traffic generation.

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://canberradoula.com/uploads/1/3/0/3/130323620/130323620.html#dise%C3%B1o+de+pavimentos+flexibles+metodo+aashto+paso+a+paso PDF link annotation
    • http://coachdane.com/uploads/1/3/0/6/130604632/xibibeginajazigemip.pdfIn PDF document text
    • http://blackmagicchimneysweepent.com/uploads/1/3/0/4/130488092/8978993.pdfIn PDF document text
    • http://woodbridgexc.com/uploads/1/3/0/6/130603977/cf72acb0230fb1.pdfIn PDF document text
    • http://homecyberprotect.com/uploads/1/3/0/7/130776065/3422425.pdfIn PDF document text
    • http://schulemittelhaeusern.ch/uploads/1/3/0/3/130379461/c9529e1.pdfIn PDF document text
    • http://treetopsimplicity.com/uploads/1/3/0/6/130603827/pojuvipeb_ruxotegekekazo_pilapanumupu.pdfIn PDF document text
    • http://martayogahome.com/uploads/1/3/0/6/130604841/2871549.pdfIn PDF document text
    • http://www.stephaniestewartbailey.com/uploads/1/3/0/4/130436439/3963020.pdfIn PDF document text
    • http://trimmerlawns.com/uploads/1/3/0/9/130969037/xevefut.pdfIn PDF document text
    • http://sourkittylabs.com/uploads/1/3/0/2/130272582/fb75d54b90b.pdfIn PDF document text
    • http://auctioncincy.com/uploads/1/3/0/6/130605351/00f98d.pdfIn PDF document text
    • http://mewantemooseicdayglasgow.com/uploads/1/3/0/5/130588780/bamupodezozupar.pdfIn PDF document text
    • http://contadoresyauditoresmgm.com/uploads/1/3/0/4/130483912/tapenobivo.pdfIn PDF document text
    • http://mta-sts.mail.7161hydra.com/uploads/1/3/0/8/130814250/3536712.pdfIn PDF document text
    • http://tedsonthebeach.com/uploads/1/3/0/7/130738720/pesatuxire.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 1

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD03 11212 bytes
SHA-256: 8c261c03a4113d3eb2b6ba7766253d8ebf33158a610ea9e295632f2bfba1a8c4
font_01_sfnt_off0000f3b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B3 4264 bytes
SHA-256: 39d3febdfa3f6a88e39ced9b2b87f1962a1ab6cd17824db94818dc3f06fdaf76
font_02_sfnt_off000101b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101B8 16036 bytes
SHA-256: 779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63

Open this report in the interactive analyzer, or submit your own file for analysis.