Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ff7279adba6ebab…

MALICIOUS

PDF

75.3 KB Created: 2021-03-24 17:45:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: e7400e4f21f8d075469ac6db3c45302c SHA-1: 69fe4d198ca5858c6e710b68d2315332b2747f71 SHA-256: 2ff7279adba6ebabe67dd210abae2934c1af1b324279351694b64f536e3e75ae
134 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The presence of numerous external URLs, many pointing to PDF files on disposable hosting, suggests a link farm designed to redirect users. The heuristic 'SE_DOWNLOAD_BUTTON' indicates a lure to download content, aligning with a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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 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.
  • 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://maypoin.ru/wix?keyword=fallout+2+manual+install PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4496577/normal_5feb27a33d793.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497353/normal_604328d87f05e.pdfIn PDF document text
    • http://difavusimope.iblogger.org/luxenawotopusobuxuzu.pdfIn PDF document text
    • https://cdn.sqhk.co/lomokubaf/Igejghb/twisted_tea_flavors_calories.pdfIn PDF document text
    • http://tramlaweq.online/xutexuwepogevuginafubpcx1p.pdfIn PDF document text
    • http://axecheat1.xyz/79308730740i2a7x.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466146/normal_60228f867dea8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425507/normal_60149f462106d.pdfIn PDF document text
    • http://kraftmann.su/telelajutuwimulirufililqmvb.pdfIn PDF document text
    • http://retys.fun/rufaletebidofomelijigq92kz.pdfIn PDF document text
    • http://oneitstore.info/bts_airplane_pt_2_mp4_ilkpop90l5c.pdfIn PDF document text
    • http://cookwellbakewell.com/a_connecticut_yankee_in_king_arthurs_court_quotes4q3l6.pdfIn PDF document text
    • http://olivamebel.com/75093659809ikee1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485445/normal_603bdcb612d97.pdfIn PDF document text
    • http://fabulouss.space/28511670474eut72.pdfIn PDF document text
    • http://easylearning.space/chevrolet_bolt_review_consumer_reportsxvw71.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421637/normal_6032666f1044f.pdfIn PDF document text
    • https://cdn.sqhk.co/daribugubive/fiiPdid/jozeferafuxowusa.pdfIn PDF document text
    • https://cdn.sqhk.co/fagaxirupunu/cDjbUvk/vobenuxerufeditefirapuzu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366327/normal_6056647c94975.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://difedomuki.epizy.com/can_hepa_filters_help_with_covid.pdfIn PDF document text
    • http://juwizomeru.rf.gd/types_of_cells_in_the_human_body.pdfIn PDF document text
    • http://fowafad.epizy.com/how_to_adjust_a_toro_pop_up_sprinkler_head.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_off0000e83f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE83F 4820 bytes
SHA-256: 6fc2ee9872b2b39917590b843079dc254493d6dadb035dac2b287e4c3216fee9
font_01_sfnt_off0000f894.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF894 11280 bytes
SHA-256: 0d43c77592121c32e58b8989156b652b5f80f0d48ce3d1590f790a897f5bcb39

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