Malicious PDF — malware analysis report

Static analysis result for SHA-256 96964312c66c766b…

MALICIOUS

PDF

71.1 KB Created: 2021-02-16 09:00:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: b72c400d863a91496454f7ffc52d2c5e SHA-1: 4fa02e0325d90ba1073d2fd8fc6eb8129e648979 SHA-256: 96964312c66c766b616100df53c16068b54336bbc79d70ac5903395e19a8e0fe
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site or download a payload. The document body, though heavily obfuscated, suggests a lure related to a drawing manual, which is a common tactic for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jottigo.ru/strik?utm_term=vilppu+drawing+manual+by+glenn+vilppu PDF link annotation
    • https://cdn.sqhk.co/sipebililofo/gdBgfNi/lego_ninjago_golden_dragon_2013.pdfIn PDF document text
    • http://ketotreno.buzz/30611242485y72pi.pdfIn PDF document text
    • https://cdn.sqhk.co/tuledapozato/ii955ia/fun_reading_activities_for_5th_graders.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421040/normal_5fe76d69627f8.pdfIn PDF document text
    • https://cdn.sqhk.co/pewowutefiw/fAhbjbn/thrift_shop_clean_lyrics.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/bQfhcgg/globe_load_card_failure.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366397/normal_5ff3e6be1bc41.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425227/normal_5fcb5778c5997.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375522/normal_5ffe055d69a09.pdfIn PDF document text
    • https://cdn.sqhk.co/lekusovu/ztxQhi6/41743239185.pdfIn PDF document text
    • https://cdn.sqhk.co/timadupak/coihicg/7658754613.pdfIn PDF document text
    • https://cdn.sqhk.co/delojiwuguj/8FZaL5d/khloe_and_tristan_and_jordyn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474471/normal_5fe6ea2f40aff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4505096/normal_5fe45cccc2c2e.pdfIn PDF document text
    • http://changely.club/6153421521049l0i.pdfIn PDF document text
    • http://file-id.ru/kigadalifabejekugoxyu05p.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404296/normal_5fd6e488b02ec.pdfIn PDF document text
    • https://cdn.sqhk.co/lilomovetum/5LghhhB/knock_down_song_lyrics.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/jodabiladezot/44258633931.pdfIn PDF document text
    • https://s3.amazonaws.com/kavifunaruvi/44033097397.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/applecare_claim_form.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_off0000d378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD378 5460 bytes
SHA-256: 8f57f061df19270d8b85cf78d775c60757a2ca51f858ec522ed10a6ea851dc92
font_01_sfnt_off0000e613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE613 12584 bytes
SHA-256: b271ce300e08c14baf4addafb852fdb3b2f20261e2368503d718fcbae87852e1

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