Malicious PDF — malware analysis report

Static analysis result for SHA-256 e958017725058244…

MALICIOUS

PDF

70.1 KB Created: 2021-02-28 14:55:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 35d4e08ee9c89a43f50b2b7b3ba33c42 SHA-1: 01a574560774268a2427861b6db91ff43c66f780 SHA-256: e95801772505824487766e5f826d946782a571a296b8d7eb4505d554619ce88e
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://resalured.ru/wix?keyword=motorola+hx550+manual+espa%25C3%25B1ol PDF link annotation
    • https://cdn.sqhk.co/savageven/gjAKSKA/xesipawura.pdfIn PDF document text
    • https://rutejiredoratel.weebly.com/uploads/1/3/1/3/131383841/8458025.pdfIn PDF document text
    • http://fuvesozufinefi.medianewsonline.com/download_film_fifty_shades_of_grey_2019_sub_indo.pdfIn PDF document text
    • https://tisitijalazog.weebly.com/uploads/1/3/6/0/136017937/duzutex.pdfIn PDF document text
    • https://vokijovagugudis.weebly.com/uploads/1/3/0/7/130776016/469670.pdfIn PDF document text
    • https://cdn.sqhk.co/nuxarufodir/wgjiggd/1344336205.pdfIn PDF document text
    • https://duburidam.weebly.com/uploads/1/3/1/8/131856040/e90966.pdfIn PDF document text
    • https://wivojusifapuju.weebly.com/uploads/1/3/5/3/135327063/jewulageterebot-pevon.pdfIn PDF document text
    • https://cdn.sqhk.co/kinibemazoz/jheDKid/guwekezoribuzova.pdfIn PDF document text
    • https://cdn.sqhk.co/pinofizulag/yB93Zic/59641983872.pdfIn PDF document text
    • https://binazinir.weebly.com/uploads/1/3/4/1/134108718/9929190.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ligujizulogi.atwebpages.com/momebefiligunokuga.pdfIn PDF document text
    • https://s3.amazonaws.com/mizeteb/cars_2_game_apk.pdfIn PDF document text
    • http://rosajeku.myartsonline.com/dixofinapuped.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/xugevage.pdfIn PDF document text
    • https://s3.amazonaws.com/suzujewa/57476996351.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/72366480068.pdfIn PDF document text
    • https://s3.amazonaws.com/womirofop/17596769016.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/laura_mercier_secret_camouflage_shade_guide.pdfIn PDF document text
    • http://medexode.atwebpages.com/sunrise_in_the_heights_sheet_music.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_off0000d37b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD37B 5608 bytes
SHA-256: b09e576efd81cedecc8f02b881aee1fd77f118698324b7327d4c01277ab6b75b
font_01_sfnt_off0000e62a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE62A 10268 bytes
SHA-256: 30af25f4d2b848bc6186db7342373971e3aa6ae1a1fefa19dfea7d5116e90b3b

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