Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb6c6471acbea4a4…

MALICIOUS

PDF

79.5 KB Created: 2021-03-10 06:08:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 5c3ba66e1c27dd67d84ab430d9bf782f SHA-1: ef28ffd1885cb834302b421da3b991a708e05e7c SHA-256: bb6c6471acbea4a4eba22eb3dd45b9308163e70ed1ceaf4254238c0cad8f435e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website offering Dell drivers, likely a lure for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit user trust for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://nipisod.ru/strik?utm_term=dell+inspiron+5720+drivers+windows+7+32+bit PDF link annotation
    • https://cdn.sqhk.co/wanolugago/Ihhhg9v/aluminum_sheet_hs_code.pdfIn PDF document text
    • https://cdn.sqhk.co/noloxunipe/ghjcGjg/94414127269.pdfIn PDF document text
    • https://cdn.sqhk.co/jutalufelex/fhihcif/the_white_door_achievements_sarah.pdfIn PDF document text
    • https://cdn.sqhk.co/sinewuvemomi/rCgjje0/gold_boots_mens.pdfIn PDF document text
    • https://cdn.sqhk.co/sawijewabob/jeQjcic/84804918641.pdfIn PDF document text
    • https://cdn.sqhk.co/fiporalisu/HCpbihQ/italian_music_artists_1990s.pdfIn PDF document text
    • https://cdn.sqhk.co/gotulurowav/Rhg9cjf/zanejesimuwebinolivi.pdfIn PDF document text
    • https://cdn.sqhk.co/derixosu/hgiighd/49753966056.pdfIn PDF document text
    • https://cdn.sqhk.co/zanemulazif/ijxmZhj/34584881852.pdfIn PDF document text
    • https://cdn.sqhk.co/janonaset/idhdWr6/rijis.pdfIn PDF document text
    • https://cdn.sqhk.co/felodunom/lgjFjs8/bhagavad_gita_in_tamil.pdfIn PDF document text
    • https://cdn.sqhk.co/lutidofele/h7Anihf/64450325850.pdfIn PDF document text
    • https://cdn.sqhk.co/kavuluxaja/9qicAaa/4809068152.pdfIn PDF document text
    • https://cdn.sqhk.co/nedabuke/heRWpOQ/facebook_lite_apk_for_iphone_4s.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dusefepov.epizy.com/59652690528.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f01882b-63b5-4696-9eaa-d33f57c2840a/wd_my_cloud_storage_4tb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/897d7729-c7cc-4f22-9810-a079a09d203e/seruj.pdfIn PDF document text
    • http://dilowopuvuzi.rf.gd/character_traits_chart.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79ae23e7-d3c9-4cc7-8bbe-69523474ca20/dikodumozetez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4215e27-ef83-466f-aac8-3ea55a74a52e/who_makes_master_forge_gas_grills.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_off0000f30e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF30E 5676 bytes
SHA-256: ed72fb4dbd2d0221161d0d6c671978454c31ad2987414b0a762f81a24c1ebbe0
font_01_sfnt_off00010695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10695 12292 bytes
SHA-256: 0008e9733f76ca1a151c28ca9f45019a04bac1202868042ea82da053002ddf9a

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