Malicious PDF — malware analysis report

Static analysis result for SHA-256 aafa95e2e3dd4422…

MALICIOUS

PDF

73.1 KB Created: 2021-02-26 05:59:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: be2837cfc130f84eb55592a55804c919 SHA-1: 4810f81454f9f0730d925ec78e14cb97b99bfa88 SHA-256: aafa95e2e3dd44221678ccb101bc552fcf4387473e80121a2cc041b7e28519c8
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://druttle.ru/wix?keyword=periodic+table+of+elements+crossword+puzzle+answers PDF link annotation
    • http://gosoxegekiri.mywebcommunity.org/how_to_export_midi_tracks_from_garageband.pdfIn PDF document text
    • http://kopuvimu.scienceontheweb.net/cuisinart_1.5l_ice_cream_maker_review.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408184/normal_6030e7fbd5250.pdfIn PDF document text
    • http://zonizubiro.getenjoyment.net/hot_caramel_latte_dunkin_donuts_calories.pdfIn PDF document text
    • https://zimizediregewoj.weebly.com/uploads/1/3/4/0/134040679/penetavigazofit_gisog.pdfIn PDF document text
    • https://befewegumezozem.weebly.com/uploads/1/3/1/4/131453636/3551592.pdfIn PDF document text
    • https://vesanalu.weebly.com/uploads/1/3/1/4/131482823/ff0857e71ea7.pdfIn PDF document text
    • http://udilische.club/miwifajijejikakozudp78m.pdfIn PDF document text
    • http://priz24.site/novela_la_metamorfosis_de_franz_kafka_resumeng7orm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472775/normal_6002987301f11.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416789/normal_5fd1e606c230a.pdfIn PDF document text
    • https://tupisefam.weebly.com/uploads/1/3/1/3/131383837/3121723.pdfIn PDF document text
    • http://vipmanmarket.space/mr_peabody_and_sherman_full_movie_online_123moviesp9rc5.pdfIn PDF document text
    • http://it50life.pro/nukusujesuledudir3z9yq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459788/normal_5fe94e8d601f1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/vexeliku/vengeful_ve_schwab_epub.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/x_air_xr18_manual.pdfIn PDF document text
    • http://satawakerexe.atwebpages.com/the_way_of_the_world_themes.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/azalea_flower_images.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/power_book_2_season_1_episode_2_cast.pdfIn PDF document text
    • https://s3.amazonaws.com/naxozelozude/wogotopokise.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxexi/7365443433.pdfIn PDF document text
    • https://s3.amazonaws.com/nademopor/test_de_inteligencias_mltiples_para_adolescentes_imprimir.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4FB 5464 bytes
SHA-256: dad57d3c9e6450ad129d2864a1f517a986bd79b6c070c0c244413aa3063484f6
font_01_sfnt_off0000e786.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE786 9644 bytes
SHA-256: 0945e5f4abd19c4fb981d97b5e5068c10ed196cebebf826a7aea5487e638c2c2
font_02_sfnt_off0001082a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1082A 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361