Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dd0e3947176e3b8…

MALICIOUS

PDF

71.3 KB Created: 2020-11-17 02:48:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: e7ce7eda7dc7e5ec8edfa04e0741479d SHA-1: d6c0da9ba7311679fcfa5562876b2e143a98f68e SHA-256: 0dd0e3947176e3b84b908375046a10e251dadeb129301d3c1cc2eca9006c6071
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing or SEO link farm attack. It contains numerous external links, with one prominent URL pointing to a poker chip generator lure. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it is designed to redirect users to potentially harmful content or exploit vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 https://trafficel.ru/123?utm_term=world+series+of+poker+chips+generator PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381347/normal_5fa07e2bd1c9f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417653/normal_5fb2b2909d519.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421944/normal_5f99b64937726.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381318/normal_5f9f319bbfcca.pdfIn PDF document text
    • https://putigazabikikim.weebly.com/uploads/1/3/2/6/132682718/1395216.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477649/normal_5fb2e95f791a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375194/normal_5f89c46f6a5f4.pdfIn PDF document text
    • https://xemivigezeb.weebly.com/uploads/1/3/4/4/134481563/lesofopezemal_weseda_jekivu_wamipokinefu.pdfIn PDF document text
    • https://rawogozanukej.weebly.com/uploads/1/3/4/6/134623914/tawasukudi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/mr_wuffles.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/pajapiranuvel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09833d63-3445-4e4c-9f4e-46d729aba412/49490471756.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f4c3214-3b2a-4539-8c6b-140ff244077e/74669147343.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
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE3C 5492 bytes
SHA-256: 9a8a409dd7579298f2d78e4e78d80b5ac43f072256e3e988770451bc4fedf4cb
font_01_sfnt_off0000e0f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F1 2092 bytes
SHA-256: 9fcfd2b2c12c9d480c0beec3ee39f05b9e518edc5177a7a5fcc68dff0371f8a2
font_02_sfnt_off0000ea92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA92 11224 bytes
SHA-256: fe52071522de9c80594c08274b93d7a8be3676cb1d35a9e65107ef31517b6cb5

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