Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa0780cc7e46123c…

MALICIOUS

PDF

76.6 KB Created: 2021-01-24 23:28:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 5f2512b30d7b64fdd24059fbea6d2f93 SHA-1: 0eb782311b63caf24f1da2e269e9ce20dd36dea7 SHA-256: aa0780cc7e46123c78a42cdaba5a82c253e86b348ae39de1ef34b249708c0bae
126 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, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains text related to 'pickup truck crane installation', suggesting a lure. The presence of numerous external URLs, including one pointing to 'trafficel.ru', indicates an attempt to redirect the user to a potentially malicious site for further exploitation or phishing. No scripts were extracted, but the PDF structure and embedded URLs are strong indicators of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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 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/123?utm_term=pickup+truck+crane+installation PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4421209/normal_5fce6ce69ad11.pdfIn PDF document text
    • http://lnstagramverifycentre.com/nigavofisikodivonam384u2.pdfIn PDF document text
    • https://lasapiboxemifol.weebly.com/uploads/1/3/4/8/134865682/3f647593e9fc2c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445116/normal_5fe53718c5974.pdfIn PDF document text
    • http://studytogether.fun/mcat_practice_test_questionsyttyp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459174/normal_5fd656223bd08.pdfIn PDF document text
    • http://kzrovk.xyz/88204226478mfqri.pdfIn PDF document text
    • https://wipukanutunuk.weebly.com/uploads/1/3/1/4/131437017/xuwulakipoboj_fufasuviwax_molokuxexum.pdfIn PDF document text
    • http://copyrightsupport-ig.com/63248031142tf6ko.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381528/normal_5fe972613f02a.pdfIn PDF document text
    • http://smeshnoykir.space/bulel3sv0a.pdfIn PDF document text
    • http://magnifioco.site/begekurezanapoka9de.pdfIn PDF document text
    • http://genoray.pro/zisozurgamm2.pdfIn PDF document text
    • http://euroshopmn.space/plumber_install_water_heater33ws8.pdfIn PDF document text
    • http://itfamily.info/thorough_definition_sciencejugiq.pdfIn PDF document text
    • http://ru-dev.xyz/sokuxidezalubovebejigapirr1w11.pdfIn PDF document text
    • http://infokurs.design/agar._io_unblocked_for_schooloili1.pdfIn PDF document text
    • http://changepass.online/91659150048vfsii.pdfIn PDF document text
    • http://feyakast.online/nanavonumera1w9e.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/jixeremipet/63042433905.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/android_box_apps_malaysia.pdfIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/paginijemizosokuji.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eeff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEFF 4992 bytes
SHA-256: 1ee4c004ada4227155be68dac7847c43123244346a847b5d830766cc05a88da1
font_01_sfnt_off0001000a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1000A 10824 bytes
SHA-256: 5a2b938eebff6757b9b84036e1d1fae9f6a9598ae57b4dd8c1bfdac3f699b49c

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