Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8813150cc682f66…

MALICIOUS

PDF

70.5 KB Created: 2021-01-31 07:54:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ac2a338c37d219c12168900e102ad171 SHA-1: 8d6ba6753a9aa810437ea8fd6ae404a693929f0a SHA-256: d8813150cc682f668d4c324e38a76acdd252bf16ac6c5930da7318b83230947a
212 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://leonvi.ru/wb?keyword=candy%20crush%20soda%20saga%20hack%20download%20android PDF link annotation
    • https://mijipunipiju.weebly.com/uploads/1/3/1/4/131455283/sepubaxa.pdfIn PDF document text
    • https://nozodipipagim.weebly.com/uploads/1/3/1/4/131438171/woleban-wosefikig.pdfIn PDF document text
    • https://tavifarexup.weebly.com/uploads/1/3/4/6/134611028/d8d3f.pdfIn PDF document text
    • https://seruborakumew.weebly.com/uploads/1/3/4/8/134849990/87e7e.pdfIn PDF document text
    • https://ranezilipevag.weebly.com/uploads/1/3/5/3/135392607/8385773.pdfIn PDF document text
    • https://galevegu.weebly.com/uploads/1/3/4/5/134507196/rekivudiwepamim.pdfIn PDF document text
    • https://bunavomotuta.weebly.com/uploads/1/3/4/6/134606544/wixujusi-nexebigaw-xomelo-jikux.pdfIn PDF document text
    • https://subijiderekura.weebly.com/uploads/1/3/4/6/134616270/kakularozotepob_feritebiwezum_xelaja_wanukeje.pdfIn PDF document text
    • https://gopaxabog.weebly.com/uploads/1/3/5/3/135309926/muvim.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/negonanopix/integrator_and_differentiator_lab_report.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/appserv_for_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/diablo_3_botting_guide.pdfIn PDF document text
    • http://katewamopexo.rf.gd/du_sol_result_2018_ba_programme_marksheet.pdfIn PDF document text
    • http://judewal.rf.gd/odia_film_song_2018_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/fur_elise_short_version_sheet_music.pdfIn PDF document text
    • http://dunedobaxapekir.epizy.com/gumagunamiwaxezujuzu.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/63998184711.pdfIn PDF document text
    • http://logoroxesum.epizy.com/video_editing_android_full_apk.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_off0000d655.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD655 5364 bytes
SHA-256: 9b360fa281b98fa4e392ba35dd89deacbb06e4a5eb49a7a7939af4e8a286971e
font_01_sfnt_off0000e8a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A2 10592 bytes
SHA-256: 440500fe9ad2e5737579c2e5182e5ada5a0c311da60944bc5bfb22e31395ea5a

Open this report in the interactive analyzer, or submit your own file for analysis.