Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbd5011738d262cf…

MALICIOUS

PDF

78.5 KB Created: 2021-02-26 01:31:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ee3eb49be5501a200b646bd05fc39a72 SHA-1: 4c55f3b07265db4fb606adaacd26a23eda719f70 SHA-256: bbd5011738d262cf493d361dbd80e6ebfa5fa417f3975d12b134ef5500bf7faf
136 Risk Score

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://jottigo.ru/award?keyword=1999+dodge+ram+1500+rust+repair+panels PDF link annotation
    • https://cdn.sqhk.co/gipudeviwapi/hfSijjh/13658911770.pdfIn PDF document text
    • http://mosebuzixat.mywebcommunity.org/java_swing_button_style.pdfIn PDF document text
    • https://cdn.sqhk.co/vatomepipiw/ieOh86g/hardest_steven_universe_quiz_buzzfeed.pdfIn PDF document text
    • http://fajutixosisi.22web.org/billian_billian_akhan_new_song_video.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/ganubifirigevi/mavapumewu.pdfIn PDF document text
    • http://xunepesefosog.rf.gd/14833373459.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/bhajan_music_apps.pdfIn PDF document text
    • https://s3.amazonaws.com/lukepepe/pagafutixix.pdfIn PDF document text
    • https://s3.amazonaws.com/gonasidupij/89645112374.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/movies_links_telugu.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/gefumuvamivozawasutineret.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/rubaj.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/vozufuporim.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/84921909809.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/what_is_the_password_for_linksys_extender.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_off0000f5f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5F1 5656 bytes
SHA-256: 10bdc1e96967a24b6ea43a84f2ba069badf8e6deaaed7bab0c022712bc2e9ce5
font_01_sfnt_off00010921.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10921 10516 bytes
SHA-256: b1d3c681828261dafaa3f9f1afc82e2b0d0f9842308200e4650d18b5e20973f9