Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1e3938cfe84ab4e…

MALICIOUS

PDF

69.3 KB Created: 2021-02-16 19:05:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 39977e22a03410335cae62871b901483 SHA-1: 1fd86a75e5a530693349aa8af68baec2776c221b SHA-256: e1e3938cfe84ab4e273dc0d29d7afe38ae8a92c6dd6dbca5048ecf59414b654a
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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.
  • 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/wix?keyword=true+metrix+owner%2527s+manual In PDF document text
    • https://cdn.sqhk.co/zotofoza/ifjajav/duet_r_b_songs_2000s.pdfIn PDF document text
    • http://ziratonis.iblogger.org/uber_lab_poe_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/puxedimuwo/c6V7hZb/indoor_basketball_courts_near_me_open_now.pdfIn PDF document text
    • https://cdn.sqhk.co/bugininaxi/gyhcXh0/sniper_ghost_warrior_2_ps4_review.pdfIn PDF document text
    • https://cdn.sqhk.co/bamopilu/jmyhejd/20003393535.pdfIn PDF document text
    • https://cdn.sqhk.co/xelalizogim/hj9jffZ/real_drift_car_racing_lite_apk_hile_indir.pdfIn PDF document text
    • https://cdn.sqhk.co/dutaxato/ahighic/mlb_trade_news_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/ragonujip/oPDgjp1/jirosijejaxefivo.pdfIn PDF document text
    • https://pevopuxavinedun.weebly.com/uploads/1/3/1/4/131406680/wabotaxokewakof.pdfIn PDF document text
    • https://cdn.sqhk.co/lipisowonili/uhahe8R/mods_for_farming_simulator_usa_2.pdfIn PDF document text
    • https://zefivevolexu.weebly.com/uploads/1/3/1/6/131637056/8714653.pdfIn PDF document text
    • https://cdn.sqhk.co/fekawitaxug/VFhh4U6/janojazetunezameworur.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/limepusotanal/irs_form_5329_inherited_ira.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/dogud.pdfIn PDF document text
    • http://ramapenutizawa.epizy.com/25876417497.pdfIn PDF document text
    • http://jufakoxageponuz.rf.gd/formaggio_di_capra_in_inglese_traduzione.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/aspen_plus_v10_tutorial.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_off0000d478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD478 4976 bytes
SHA-256: a9c9edf817cd16577823cc8b2412dc7ccb4c6ff794c0f0389025225a633e63b8
font_01_sfnt_off0000e562.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE562 10104 bytes
SHA-256: 84180b411a435a3180239b5c80d3e683dfc93935696b4c7d085f7abbe63c39c3