Malicious PDF — malware analysis report

Static analysis result for SHA-256 e85e40368a040cc4…

MALICIOUS

PDF

69.9 KB Created: 2021-03-05 16:06:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 71a959e35d169f1d60557f92e89a71a8 SHA-1: 35b491d49ec036c5042c403eb04e727d6c54d041 SHA-256: e85e40368a040cc424b5846e07e429b413e81f81a1cc76d7629c1969fb5146f5
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • 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.
  • 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://jottigo.ru/wix?keyword=rayna+tyson+instagram PDF link annotation
    • https://sarutofujatazix.weebly.com/uploads/1/3/4/5/134584212/c1e6db2.pdfIn PDF document text
    • https://gulufoge.weebly.com/uploads/1/3/0/7/130776817/zataxukusu.pdfIn PDF document text
    • https://ramowofotaro.weebly.com/uploads/1/3/1/6/131607053/jomorodo-pexiritidizo-jugidevozof-mumekedivev.pdfIn PDF document text
    • https://kexofoxofoxo.weebly.com/uploads/1/3/5/3/135318322/2379996.pdfIn PDF document text
    • http://trysalon.xyz/killing_pablo_movie_trailera2kg5.pdfIn PDF document text
    • http://smartcoin.design/yo_yo_intermittent_recovery_test_level_1_score_sheeti8e8y.pdfIn PDF document text
    • http://micrometerdigital.xyz/wobokevuzo4d7c.pdfIn PDF document text
    • https://tetiwaxope.weebly.com/uploads/1/3/0/7/130776033/4154c0eda85.pdfIn PDF document text
    • https://rujivedudupuvi.weebly.com/uploads/1/3/6/0/136051492/xakesisetijemut.pdfIn PDF document text
    • http://igclienteam.com/wapemileteveliwerupafosbrff.pdfIn PDF document text
    • https://gononazenikemad.weebly.com/uploads/1/3/4/4/134482012/3101364.pdfIn PDF document text
    • http://gufutaca5.xyz/pekulidetisosomezixaxy9e9.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/c732ebf1-b90e-4f23-adaf-4522d6d9b1db/goketo.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/cadbury_dairy_milk_ad_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/98133669138.pdfIn PDF document text
    • https://s3.amazonaws.com/wovisak/travel_and_tourism_competitiveness_report_2018_india.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae045212-5b9a-41c8-b0b8-1b02f97ccdf8/denon_avr_3313ci_specs.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/peter_roach_english_phonetics_and_phonology.pdfIn PDF document text
    • http://venumifulo.epizy.com/bawonuzuranapomifoto.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/4416284844.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8a61691-7601-44ac-9ba9-329cccf2a82c/70737375399.pdfIn PDF document text
    • http://deroxemonak.epizy.com/nevotugesetuzajab.pdfIn PDF document text
    • http://punozow.epizy.com/gegifuj.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_off0000d764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD764 5084 bytes
SHA-256: f11ce1a80fe6c945aa78b40548d6ce1f2256ff437bd8eed05762f4faf9cd2504
font_01_sfnt_off0000e8ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8AB 9780 bytes
SHA-256: 61207ed6f8e57630f5800163bfb885667c248e78691f34e2411433f3dc09ff17

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