Malicious PDF — malware analysis report

Static analysis result for SHA-256 01bccc0d917914fa…

MALICIOUS

PDF

75.5 KB Created: 2021-03-03 01:55:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 509d600dd0127415893b3dff283c6cd3 SHA-1: 2b3adc76701de539a6aba0cada9c8f98f0723537 SHA-256: 01bccc0d917914fafacdff2eec079998014008f79c199ea6312e6bfbb4f82a5f
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains heuristics indicating it's a malicious redirector and has been flagged by ML classifiers and ClamAV as phishing-related malware. The document body, though heavily obfuscated, contains text related to an alkaline diet, which is likely a lure. The primary malicious indicator is the embedded URL pointing to 'dafemum.ru', which is identified as a malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://dafemum.ru/123?utm_term=what+foods+can+you+eat+on+the+alkaline+diet In PDF document text
    • http://theplafond.xyz/discord_nitro_free_crackge5ob.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/activate_windows_8._1_64_bit.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475577/normal_5fe6231caf319.pdfIn PDF document text
    • https://cdn.sqhk.co/pugepavofu/hjzjhhb/robot_crash_fight_mod_apk_revdl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428078/normal_5fd03edc4e6a1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465125/normal_5fe00c2ab7d7a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380078/normal_5fcb50824e77f.pdfIn PDF document text
    • http://1gusevshop.space/captain_tsubasa_dream_team_apk_1._13xlbvx.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/47485105484.pdfIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/jasmine_flower_pics.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425501/normal_5fc874c3de1ff.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/lapaxoroge.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501374/normal_5fc9a38e172d5.pdfIn PDF document text
    • http://oneitstore.pro/who_wrote_the_monkees_theme_songzorbh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459029/normal_602156b25ecb9.pdfIn PDF document text
    • http://fastcreditcheck.info/stand_by_me_sheet_music_guitarl38qa.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/zetarudul.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
    • 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_off0000e9bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9BC 5192 bytes
SHA-256: 473ead412e02af81b48b4f01dd08cb13964c0c11e87053b86be25e7202cfcbcf
font_01_sfnt_off0000fb81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB81 10396 bytes
SHA-256: eca6415a03874784599ac3cd260a516adb56a7fa396d8ed904fca995f9a212ed

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