Malicious PDF — malware analysis report

Static analysis result for SHA-256 800ffc9d623cbf22…

MALICIOUS

PDF

85.8 KB Created: 2021-03-31 17:34:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 892fca0c9d9debdca236be8383952c92 SHA-1: 16649faa91603fe32dd0a6f412578f885bd60c81 SHA-256: 800ffc9d623cbf224d2d7a9b0b76fae4b1b844d63577bee9801d4f798da2a2bd
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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://soxebez.ru/award?keyword=cell+biology+topics+pdf PDF link annotation
    • http://setofexperience.site/gelewejazisenazanijixofi65x0k.pdfIn PDF document text
    • http://fifukeluforonis.22web.org/how_and_when_to_harvest_sweet_potatoes.pdfIn PDF document text
    • http://verifiedbadges-form.com/maus_ii_art_spiegelmann6dbb.pdfIn PDF document text
    • http://zunukaxisorulev.iblogger.org/88199144853.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502500/normal_605cb48059703.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420766/normal_5ff8004364e60.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501204/normal_6006b0ae68c3c.pdfIn PDF document text
    • http://zathkatow.xyz/tobimetiwutupejosinlr2lv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402717/normal_5fdd8770544ed.pdfIn PDF document text
    • http://radasekot.iblogger.org/9994527769.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376380/normal_5feb6134d8ad9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460243/normal_5fdc3fb5f0021.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416792/normal_5fefab462e892.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489852/normal_603e986aa4cad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490273/normal_6028ab10ebbea.pdfIn PDF document text
    • http://puliliraforuwu.22web.org/brunel_university_email_format.pdfIn PDF document text
    • http://shop-onlain.fun/arbonne_vanilla_protein_shake_mix_recipes21pod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390995/normal_6055992318643.pdfIn PDF document text
    • http://blue-tick-central.com/nesibavepit6ckok.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378410/normal_5fe308a313383.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419623/normal_5fc999ef282c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384304/normal_60502ccbdf0fc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dalezogidaxi.epizy.com/what_was_the_primary_goal_of_the_progressive_movement.pdfIn PDF document text
    • http://tomosuromiv.epizy.com/60553869506.pdfIn PDF document text
    • http://sifirajudexotiz.epizy.com/ice_bin_sachivalay_model_paper_2020.pdfIn PDF document text
    • http://debatebarumexa.epizy.com/82405347637.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_off00011062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11062 5164 bytes
SHA-256: 78b838fb258f9f731429ec7c4d82c0a4cadb95454ad37d56334b7f088d67f5c3
font_01_sfnt_off00012214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12214 11664 bytes
SHA-256: c094eae891fe2366edc20e7f4fb072dc6117f5dac0218ea10bc5480590667aab

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