Malicious PDF — malware analysis report

Static analysis result for SHA-256 a220a2fc86add66c…

MALICIOUS

PDF

78.3 KB Created: 2021-02-28 23:55:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5f5925ad90f77678dd71c7eb13944b03 SHA-1: e0386535749da22d5f74a3272b992b9863cd1017 SHA-256: a220a2fc86add66c1fac399fa84432ee8d8673068d8631b8ab388c4e17db8586
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://pelibifir.ru/wix?keyword=9.4+practice+a+geometry+answers+pg+306 PDF link annotation
    • https://cdn.sqhk.co/nixafusoda/ianVdnT/word_connect_answers_level_1283.pdfIn PDF document text
    • https://cdn.sqhk.co/nozelenid/igWqrJy/how_to_unlock_all_piffle_characters_crossy_road.pdfIn PDF document text
    • https://cdn.sqhk.co/manaruparil/ohifqIo/candy_crush_saga_online_games_play_free.pdfIn PDF document text
    • https://cdn.sqhk.co/gogerazina/jjUKgjt/download_death_worm_tm_free_mod_apk.pdfIn PDF document text
    • http://lazategomid.scienceontheweb.net/zewulibebutilomikatusi.pdfIn PDF document text
    • https://cdn.sqhk.co/viwiratoposu/jgShfjX/71304638869.pdfIn PDF document text
    • http://jikusofare.mywebcommunity.org/freak_the_mighty_book_trailer.pdfIn PDF document text
    • https://cdn.sqhk.co/pufowuvikij/cgiRhe2/lulotudasuwibupad.pdfIn PDF document text
    • https://cdn.sqhk.co/ruzemesafe/ifqigih/41241197688.pdfIn PDF document text
    • https://cdn.sqhk.co/vivakawibaki/bBgjiaz/42757599697.pdfIn PDF document text
    • https://cdn.sqhk.co/birenejar/cXgiujf/run_man_3_unblocked_77.pdfIn PDF document text
    • http://pagavopalubutu.scienceontheweb.net/monster_inc_2_characters.pdfIn PDF document text
    • https://cdn.sqhk.co/javeduner/ghgdigg/clash_of_kings_mod_apk_unlimited_gold.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/ninazarila/34552291776.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/goduzatiw.pdfIn PDF document text
    • https://s3.amazonaws.com/gupojakami/82388745758.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/50569608356.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/lion_king_color_sheet.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_off0000e9a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9A4 6056 bytes
SHA-256: cc5a59666563e2b47afa2fd1d03954cb950c0383c6d84ca3482c7132ee999b95
font_01_sfnt_off0000fe41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE41 14744 bytes
SHA-256: 78d8b86b56d8cddd4ff86860eaf3a02a075478f74e1b459ce2dd86f9d58cc4f7