Malicious PDF — malware analysis report

Static analysis result for SHA-256 147910d03a0bbb14…

MALICIOUS

PDF

75.0 KB Created: 2021-02-10 06:02:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 60089937a5b829953d3d14b7c75c3040 SHA-1: d40327a1ba2190169430156898fdc444506b811f SHA-256: 147910d03a0bbb14c4ce12b21d7f60686a3b318b22395b19034da7d98ac926d3
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wb?keyword=mens%20sweatshirt%20style%20guide In PDF document text
    • https://cdn.sqhk.co/jagapifa/VCigMaQ/candy_crush_jelly_saga_cheat_engine.pdfIn PDF document text
    • https://cdn.sqhk.co/lasokixon/63jihig/94364585147.pdfIn PDF document text
    • https://cdn.sqhk.co/farovufu/jctVwii/spongebob_granny_mod_apk.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/ronatiduzoxij/bajirao_mastani_full_movie_iyify.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/piramizujibabulagoruse.pdfIn PDF document text
    • http://sezesub.epizy.com/basuvulisure.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/68184909108.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/bollywood_movie_hd_new_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/navoburarovada/critical_ops_apk_hack_android.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/41880987346.pdfIn PDF document text
    • http://lenepozomewu.epizy.com/keynote_speech_powerpoint_template.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/black_gospel_guitar_chord_progressions.pdfIn PDF document text
    • http://jipaxesu.rf.gd/graal_female_body_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/battlefield_4_free_for_android.pdfIn PDF document text
    • http://supisaminuwon.rf.gd/handmaid_s_tale_season_2_episode_guide.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_off0000e6fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6FA 5284 bytes
SHA-256: 1f5e83f7a337892e10c71915c957d5e6fc8625af9df0e54fc53cc551a2d3be87
font_01_sfnt_off0000f90c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF90C 11216 bytes
SHA-256: 1b3ddbf8736a76db8276b440048b3bf9604738f43d686b6fb00f3e84ce20d019