Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ad857f209a58bb9…

MALICIOUS

PDF

68.3 KB Created: 2020-11-28 01:14:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 606df2928e856e31202ec6ddb59a21ab SHA-1: 70d84a1a607104f8d6b97f61b4970dca481b1e42 SHA-256: 0ad857f209a58bb9c77cbb3c4153c8b7318bea967ae181169673eaa73a36078d
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document contains numerous links to external websites, many hosted on disposable domains, suggesting a link farm or phishing campaign. The presence of a 'star wars movies free' lure in the document body, combined with the ML classifier and ClamAV detections, strongly indicates malicious intent. The document likely serves to redirect users to malicious sites for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/aws?utm_term=hd+star+wars+movies+free PDF link annotation
    • https://refiraledekire.weebly.com/uploads/1/3/4/7/134715744/fifebapiporomixab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451375/normal_5fb4020df1a28.pdfIn PDF document text
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/gapit-galijawijekinik-kedafel.pdfIn PDF document text
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/41defd1ee3.pdfIn PDF document text
    • https://jivexine.weebly.com/uploads/1/3/1/3/131380908/movexexadafolarujiz.pdfIn PDF document text
    • https://zuriloteva.weebly.com/uploads/1/3/4/6/134623588/xapejafuwejid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403687/normal_5f915fa0b1ec1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450154/normal_5fc184e03c207.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412899/normal_5f93fd04e4b19.pdfIn PDF document text
    • https://mizitixas.weebly.com/uploads/1/3/4/5/134589849/1061986.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467561/normal_5fa39a58afcb9.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/tixedujegibex/faliso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b2a1d56-7230-469c-999f-40c791de6ffa/enna_sona_kyu_rab_ne_banaya_mp3.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/difference_between_binomial_poisson_and_normal_distribution.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEA0 5136 bytes
SHA-256: 35df4a1eb9b319975f71f827a24bd653394c6ee4c2ad8abef5ed80d2c4f62045
font_01_sfnt_off0000e018.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE018 10764 bytes
SHA-256: 3a1ee4e83b2056726eb9349dcb5f12f836626338a03596881598d4f2b781b075

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