Malicious PDF — malware analysis report

Static analysis result for SHA-256 01dd07f66b7347f5…

MALICIOUS

PDF

68.8 KB Created: 2021-02-17 16:32:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d993e07a5ea914499964d266794c3cfd SHA-1: ac276522d1f00da93d263a6f5191ce8811523fe2 SHA-256: 01dd07f66b7347f5efeca2016e8927be1d134650951e4199044049fc1cc10c0e
202 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.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://yafferge.ru/wix?keyword=androvid+pro+apk+all+version In PDF document text
    • http://scandisvet.ru/nugabagomupuxeduni95e.pdfIn PDF document text
    • http://begdas.space/zuvifinigolumivarjibjl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483070/normal_5ff4b2faf2abd.pdfIn PDF document text
    • http://goldstein.berlin/maron_y_pruttond7z5t.pdfIn PDF document text
    • http://tcerkovniekupola.space/59551495036p634y.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/mefadedosuw/form_utility_definition_marketing.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/zefuxeli.pdfIn PDF document text
    • http://navadolaje.rf.gd/boho_bird_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/grandad_clive_dunn_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/buwosevax/crsu_date_sheet_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/dazutun/murow.pdfIn PDF document text
    • https://s3.amazonaws.com/gonima/54656433985.pdfIn PDF document text
    • http://zunebodiz.epizy.com/28769009392.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/78681350917.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/zasapofupebodovip.pdfIn PDF document text
    • https://s3.amazonaws.com/rurovikejigibu/ramekasiz.pdfIn PDF document text
    • http://tevedelowudori.epizy.com/elena_and_damon_episode_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/billable_hours_template_google_docs.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/arputha_theevu_tamil_movie.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_off0000c9b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9B7 5068 bytes
SHA-256: e5a48b4317db07643f8ddccb9e5acb2ecc97ffe78505f763d8737192cec24512
font_01_sfnt_off0000db06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB06 13552 bytes
SHA-256: e696ffa502000e5a696b0bc83b1e5924fb3d99ebb3b190502168bb1e0423986b