Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a63d6d3d0b33bf9…

MALICIOUS

PDF

70.2 KB Created: 2021-02-24 00:40:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f5c46e66f5fa6cdab49bd4e86e5207fd SHA-1: 9ac6aa17ebcf2c37ff53eaa418637789baa3e403 SHA-256: 2a63d6d3d0b33bf96305369a5416f86bb2fb19d13b54d641e8a549fd92337e73
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.
  • 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://druttle.ru/wix?keyword=becoming+supernatural+book+pdf+download PDF link annotation
    • https://kazigujexumakul.weebly.com/uploads/1/3/4/3/134320364/638f238b.pdfIn PDF document text
    • http://sokujojetutita.iblogger.org/chamberlain_1_2_hp_garage_door_opener.pdfIn PDF document text
    • https://guvorike.weebly.com/uploads/1/3/4/2/134266232/linox-putudadifater-ripojubevikoveg-wajojidogaseko.pdfIn PDF document text
    • http://kopavavabigi.66ghz.com/orc_warrior_leveling_guide_classic.pdfIn PDF document text
    • https://cdn.sqhk.co/pemejurove/gfzhcic/82870770091.pdfIn PDF document text
    • https://cdn.sqhk.co/jagibuvat/fqhjhjd/67501131450.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/jbk3Ejf/wosaluvalud.pdfIn PDF document text
    • https://voperupazekeko.weebly.com/uploads/1/3/4/5/134505312/e013ce615179.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/kokesatodixon/35633421562.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/gipazijitu.pdfIn PDF document text
    • http://talaxapu.epizy.com/18757204542.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/been_together_apk_pro.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/missy_elliott_alyson_stoner_2019_vma_performance.pdfIn PDF document text
    • http://gipunixufekuto.epizy.com/craftsman_briggs_and_stratton_gold_6.75_190cc_lawn_mower_spark_plug.pdfIn PDF document text
    • http://zavipazo.epizy.com/vascular_malformation_brain_causes.pdfIn PDF document text
    • http://niruvizuzeta.epizy.com/microsoft_sharepoint_2013_training_videos.pdfIn PDF document text
    • http://rodobokojezaga.epizy.com/xukezesoru.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/diesel_fuel_injection_pump_problems.pdfIn PDF document text
    • http://sudimomovaw.epizy.com/jegorunejafijasazonit.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_off0000d46c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD46C 5820 bytes
SHA-256: 52efe1683c079df0c6f8dcae10333405f249fce90e45c4620f0930ce436d3d7c
font_01_sfnt_off0000e839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE839 10412 bytes
SHA-256: 79fcfff04e3ac7dcc5708cf47112c0c25d0a4d1688b6929d7424aca92d61778e

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