Malicious PDF — malware analysis report

Static analysis result for SHA-256 abe55297285aeb58…

MALICIOUS

PDF

74.6 KB Created: 2021-04-02 16:52:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 82fa935283027c51a05fc3bc40bd4276 SHA-1: c771a0cd8b9291da0994c241bfe38d0c631a27f6 SHA-256: abe55297285aeb58518b922e8c390105cb5a2c6e14eee4109d35ad322956eebf
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an external URI and a redirector link pointing to 'https://baarspo.ru/wix?keyword=best+bets+for+couples', suggesting a phishing attempt disguised as content related to couples' interests. No scripts were extracted, but the PDF structure and heuristics indicate a malicious intent to redirect users to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://baarspo.ru/wix?keyword=best+bets+for+couples PDF link annotation
    • http://fruit-italy.space/aesthetic_videos_for_tiktok_quotes5vcbd.pdfIn PDF document text
    • http://degitugeb.22web.org/48042117570.pdfIn PDF document text
    • http://perfectiona.online/44296356842sh3q6.pdfIn PDF document text
    • http://wijetaz.mypressonline.com/laboratory_safety_procedures.pdfIn PDF document text
    • http://hellochildren.online/batman_unlimited_all_villainsg02jr.pdfIn PDF document text
    • http://xonitaj.mywebcommunity.org/1836518256.pdfIn PDF document text
    • http://fafijitesulexiz.mygamesonline.org/libros_de_isabel_allende_paula.pdfIn PDF document text
    • http://rivabitipo.22web.org/all_bank_name_full_form_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/87cbd8be-0e0e-4618-8303-9687ee558dd1/judukomuwujareju.pdfIn PDF document text
    • https://s3.amazonaws.com/wamatasamegu/can_you_take_a_permit_test_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72902666-36e4-487f-93d5-82938bad2f2c/how_to_get_blank_checks_from_your_bank.pdfIn PDF document text
    • https://s3.amazonaws.com/fevobelijogal/jugodugafukaxajenonazab.pdfIn PDF document text
    • https://s3.amazonaws.com/topipovikapari/vonokitu.pdfIn PDF document text
    • https://6d23287f-a15b-43b7-8d69-700c0e01f504.filesusr.com/ugd/185c00_82deffa3f7a54ed5baa1d3db2834a7f8.pdf?index=trueIn PDF document text
    • http://bibarixe.epizy.com/adhe_kangal_old_movie.pdfIn PDF document text
    • https://ea7788ad-ef5a-48b5-911d-3ad522045378.filesusr.com/ugd/f3bfbb_7b01541f627c42889dd04ea3d3ea0494.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pubopelej/inscription_leveling_guide_cataclysm.pdfIn PDF document text
    • https://780c8f77-0f51-49ab-8dd1-60a90eb210a4.filesusr.com/ugd/1b8612_acf4e94a77f246bda05d2fe87c05bb8f.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c5ec160-fd0d-4aeb-a5ef-b7e72809099a/wizard_leveling_guide_ragnarok_eternal_love.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 7

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_off0000e47f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE47F 4988 bytes
SHA-256: 76abe6e10d114dac63809ac762d1baf61aea9bc9877b24e6920c3660f31e004e
font_01_sfnt_off0000f588.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF588 11372 bytes
SHA-256: c268422fd65f866884ca66989423459b1c12f7923739fe239e489b141d43ac0b

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