Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2027a727ce07c57…

MALICIOUS

PDF

78.3 KB Created: 2021-03-31 14:40:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a044e96ad400456a6b603800983b11b3 SHA-1: f471dace2c706aa90281bceab6f15f7b8ccc70c2 SHA-256: c2027a727ce07c570ad86ab72a00d83e529594798b65b8e3a7697f45fcc6c0f5
156 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • 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.
  • 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://lozipotod.ru/strik?utm_term=which+one+is+the+salient+features+of+government+of+india+act+1935 PDF link annotation
    • http://zijojot.22web.org/14132263290.pdfIn PDF document text
    • http://vetapako.22web.org/letasoft_sound_booster_full_version.pdfIn PDF document text
    • http://gizovivomiz.getenjoyment.net/potipaj.pdfIn PDF document text
    • http://maxiteguf.medianewsonline.com/gudenevumawivedajovipite.pdfIn PDF document text
    • http://rolapisi.scienceontheweb.net/22897143382.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/dowavelaxam/59279973940.pdfIn PDF document text
    • https://2f60c0de-bae8-48d8-8f3f-ce7907f87c52.filesusr.com/ugd/badafb_5ff0a3bed8fa49f28bdec95afadab842.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jiwisi/20210285932.pdfIn PDF document text
    • https://44879a12-c10a-431c-a98a-7de142752d0f.filesusr.com/ugd/bb4607_7d908eebda784dd992b1e5d71a56576c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/verapawazonepis.pdfIn PDF document text
    • http://naxamuj.epizy.com/47411367092.pdfIn PDF document text
    • https://667abc8f-92ca-45d9-bc9d-789c80a68858.filesusr.com/ugd/dcd78f_9cf44dd9df1440658cc76cc8f1f3e766.pdf?index=trueIn PDF document text
    • https://92fed17e-af34-466b-b3fe-38cd9ef27699.filesusr.com/ugd/192d58_6e84f3bcec6b40b1a52589818fba58ff.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/never_fade_away_bass_tab.pdfIn PDF document text
    • http://didosides.rf.gd/86372859773.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/76300043020.pdfIn PDF document text
    • http://lexegeverurejeb.rf.gd/kudankulam_nuclear_power_plant_advantages_and_disadvantages.pdfIn PDF document text
    • https://2571d5ef-7130-409a-b87d-c3fd18a83f30.filesusr.com/ugd/71fc55_2546574bb31546d794386d3a53ed5b1b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tisegovofu/dorian_gray_movie_age_rating.pdfIn PDF document text
    • https://6acf0ca1-aa41-4771-8b91-54baff69ee7f.filesusr.com/ugd/7d1dc9_1b8fec3c39424395bfbb0b875e593e61.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jevopemosod/294601024.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/startup_business_plan_in_india.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/bajrangi_bhaijaan_all_song_bestwap.pdfIn PDF document text
    • https://dca540c6-954d-4243-9f09-0921753db957.filesusr.com/ugd/974a4e_180398a3143f4a04b26bb1a107d87906.pdf?index=trueIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f22f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF22F 6004 bytes
SHA-256: da69ab6720163191fdec02ea4ea967e337c4987be75c0e6583b024be9d8a3387
font_01_sfnt_off00010690.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10690 10684 bytes
SHA-256: ec775a125e2fd9d604e822ad33837844a0f1574eba082c47526d5246ef3548d5

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