Malicious PDF — malware analysis report

Static analysis result for SHA-256 57abf89008ce16bd…

MALICIOUS

PDF

67.9 KB Created: 2021-01-08 18:57:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: c139711791c05d265840448e858db395 SHA-1: 9ae8e8c962ffb3ea2e14590b174c22f3a5fe00ab SHA-256: 57abf89008ce16bda3cb5a9caf14c5f92e1c93cc0fabbeeaf2f56cefee014d7d
204 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • 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
  • 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://trafffe.ru/123?utm_term=thank+you+note+in+spanish+example PDF link annotation
    • https://xazojitov.weebly.com/uploads/1/3/1/4/131408465/6454322.pdfIn PDF document text
    • https://kutawujotin.weebly.com/uploads/1/3/4/0/134016956/6040273.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414871/normal_5fa1b8dab4984.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374979/normal_5f8a314b6fee4.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/xisefowu/general_report_card_comments_for_grade_1.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/for_the_beauty_of_the_earth_hymn_story.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/design_for_electrical_and_computer_engineers_download.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/18558183856.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/zomoxe.pdfIn PDF document text
    • https://s3.amazonaws.com/dudigonifu/sturgeon_fishing_report_lower_columbia_river.pdfIn PDF document text
    • https://s3.amazonaws.com/jarirotexab/anti_vegf_injection_full_form.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/vusegatufiwufamune.pdfIn PDF document text
    • https://s3.amazonaws.com/somisilegex/bestwap_movie_2018_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/me_baburao_boltoy_song.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/23761712527.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_off0000cf30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF30 5144 bytes
SHA-256: 7fff4fb4267aa448f74c985c50ec4655a5ab49cb8e8024659d838156a5525074
font_01_sfnt_off0000e09c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE09C 9964 bytes
SHA-256: 538603e70fb6583b4b00482e163f6781694383eea09e86b356867daed8d7ebe1

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