Malicious PDF — malware analysis report

Static analysis result for SHA-256 45a484f030f35786…

MALICIOUS

PDF

48.2 KB Created: 2020-04-11 04:00:40 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 6cc4a77a242e521e242f3043c081834f SHA-1: b972d51c788d3c4195f15f6ed126da2ec3007c79 SHA-256: 45a484f030f35786d5c7d2ff781b55a45015b758278b4d045f9560baac1b6459
96 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body text, though heavily obfuscated, contains fragments of URLs and text that suggest a lure. The primary attack pattern involves redirecting users to a large number of hosted PDF files, likely for SEO spam or phishing purposes. No scripts were extracted from this sample.

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://rebeccalaplacaattia.com/uploads/1/3/0/6/130621460/130621460.html#paea+eor+exam PDF link annotation
    • http://anacostiagrows.org/uploads/1/3/0/6/130621951/5a1dad1186.pdfIn PDF document text
    • http://lighthousewesleyanchurch.org/uploads/1/3/0/8/130874358/68d3891.pdfIn PDF document text
    • http://mileoneinc.com/uploads/1/3/1/6/131607096/9554888.pdfIn PDF document text
    • http://morganadvisory.net/uploads/1/3/0/6/130621004/5627852.pdfIn PDF document text
    • http://mcisa.net/uploads/1/3/0/5/130543394/fiwagijivewid_nuxidijux.pdfIn PDF document text
    • http://nancymackellar.com/uploads/1/3/1/1/131164421/1627cc.pdfIn PDF document text
    • http://dcog-brand.com/uploads/1/3/0/5/130589124/gusukaxobetipor-rivis.pdfIn PDF document text
    • http://mshdahling.net/uploads/1/3/1/4/131455198/nekumafusopiwub.pdfIn PDF document text
    • http://unitedweresist.org/uploads/1/3/0/6/130603889/5609845.pdfIn PDF document text
    • http://mrwoodshop.net/uploads/1/3/0/4/130435639/tejorovesodaf-rimuxobejik-mekala.pdfIn PDF document text
    • http://tmgorgeous.com/uploads/1/3/1/4/131454770/podopobuvafalese.pdfIn PDF document text
    • http://fuckuglyshit.com/uploads/1/3/0/6/130639888/pepereneroxalaw_vuzotakokif.pdfIn PDF document text
    • http://votetcu2905.us/uploads/1/3/0/8/130874325/937c6a89.pdfIn PDF document text
    • http://twilighttwinkle.com/uploads/1/3/0/7/130739811/1ccef1.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
🗂 Part of campaign: bigcitystrangers.com 6 samples

Related samples 8

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_off00007636.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7636 8068 bytes
SHA-256: 00b94dfdbbe7dbc8c3040130f152477e8d85d502edaf6ce5e96ac63adcb12ec7
font_01_sfnt_off0000954c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x954C 2796 bytes
SHA-256: 97a3418bd433653dafe652ac0a0841cf2f323fe672bd45d4cf3362d7102ed122
font_02_sfnt_off00009f2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F2F 16036 bytes
SHA-256: b3affdfdfee497c2d3230853582529cf395d265bfdbb8cde7d84ae9c33602211

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