Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ce4ddd4af8786b6…

MALICIOUS

PDF

77.1 KB Created: 2021-03-27 09:47:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: ba064b7fb887e6aeb8574d64fc9294e3 SHA-1: 5d5c6f4f8e7ed74edd2bf6e0a8498d786ecbd762 SHA-256: 7ce4ddd4af8786b61d6fa22c68aaa18441478faadbc6c0de3ace98655ad9cc8a
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous embedded URLs, many of which point to disposable hosting and are associated with link farms, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were directly extracted, the PDF structure and embedded URIs are indicative of a lure to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://dugedepap.ru/award?keyword=l+ancien+regime+et+la+revolution+pdf PDF link annotation
    • http://fizarumokugafu.mywebcommunity.org/juwelajukaki.pdfIn PDF document text
    • http://vimabanu.sportsontheweb.net/doditamomuleraji.pdfIn PDF document text
    • http://linefesejewug.sportsontheweb.net/bastar_university_ma_time_table_2020.pdfIn PDF document text
    • http://bukudix.getenjoyment.net/are_there_movies_for_the_kane_chronicles.pdfIn PDF document text
    • http://peteferix.mypressonline.com/gamagabirofefaxikaze.pdfIn PDF document text
    • http://fikakutipid.mygamesonline.org/lanupobum.pdfIn PDF document text
    • http://dovujaxemedu.mygamesonline.org/asturias_easy_guitar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369307/normal_604167a59eae0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451230/normal_5fcf07c280302.pdfIn PDF document text
    • http://toxipoxekej.medianewsonline.com/la_la_land_ending.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e006f5a-c493-4006-bd68-7f3ea730f4cf/review_garmin_gpsmap_64sx.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e762acd-fb5b-499a-b860-c62849f9b3c6/tracfone_lg_journey_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3dd8ead0-4e79-4922-9476-88a23c2330cb/29654378780.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a60812b-9681-476e-8f69-06bb0e399fd4/82859111913.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/395e028c-0923-4cbf-bbf1-49c1c892dca9/best_instant_self_tanner_target.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cc00a18-e6d1-4939-b51a-fecf0bfbec47/60400246613.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6eb91c3b-2373-474a-abda-d24256506182/gixixunasetowedusifimi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6da6fc65-d461-4227-9f3d-544d5ae74944/charlie_and_the_chocolate_factory_-_london_musical_-_when_veruca_says.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d12a1fe-4905-43d1-a758-ef657b8befe3/28072324077.pdfIn PDF document text
    • http://punotonaduwize.atwebpages.com/mifeje.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_off0000e897.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE897 5300 bytes
SHA-256: 4215c3d4302b807b23817bb33bfe2b8748c2600ea00fdcf0ad1a2956e3a5468f
font_01_sfnt_off0000fa96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA96 13744 bytes
SHA-256: 399351b5a8e87b56a7dd2624ac5b6de0d52defc9e402b62e1c4b4524e00174c4

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