Malicious PDF — malware analysis report

Static analysis result for SHA-256 0897fbb89fcdc214…

MALICIOUS

PDF

79.7 KB Created: 2021-02-13 12:28:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 47ac67ba792b8e25fca8993697fb31b0 SHA-1: 3b76523070b3bfbeee1ace292aae5c142a33ebbc SHA-256: 0897fbb89fcdc2146b4f5858181b9eaabc0ddbeaf41d4174a3575f087dc9b53c
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely intended to trick the user into visiting a malicious website. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a phishing or trojan-like behavior. The document body, though heavily obfuscated, appears to be a lure related to a search query.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/wix?keyword=the+fun+they+had+short+story PDF link annotation
    • http://chambrely.xyz/kiss_the_rain_piano_sheet_simplestl5g.pdfIn PDF document text
    • http://findattime.com/87772400506508l5.pdfIn PDF document text
    • http://razetinebi.22web.org/2011_buick_lacrosse_repair_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/soxuxopova/ig6Fhe7/this_is_the_police_destruction_of_property.pdfIn PDF document text
    • http://hookup157.site/4839824224117jf3.pdfIn PDF document text
    • http://supernefritroller.xyz/uml_diagram_tutorial4kvzd.pdfIn PDF document text
    • https://cdn.sqhk.co/jogekiluse/XkhjifK/guess_the_hollywood_movie_names_with_images.pdfIn PDF document text
    • https://cdn.sqhk.co/gulifunanale/ia3gihj/55200746782.pdfIn PDF document text
    • http://hookup755.fun/super_bike_wallpaper_hd_for_mobilet5me9.pdfIn PDF document text
    • https://cdn.sqhk.co/livukigelo/1iahe6X/nifudapexiwitevoxisozovug.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://buvajelu.rf.gd/american_endocrine_society_transgender_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/bupukab.pdfIn PDF document text
    • http://bekujefil.epizy.com/make_alphabet_tracing_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/risalenefazozo/tamil_new_audio_songs_free_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/dujepav/nisifiwegowolobevoxebu.pdfIn PDF document text
    • http://vitipazapabixu.epizy.com/balanitis_tratamiento_2018.pdfIn PDF document text
    • http://zebofazedixa.rf.gd/leatherworking_bfa_leveling_guide.pdfIn PDF document text
    • http://wepaxilex.epizy.com/65223587306.pdfIn PDF document text
    • http://bixuxopot.epizy.com/essential_oils_uses_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xesigeze/4577962520.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_off0000fdcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDCD 5012 bytes
SHA-256: 005e70e80ab1fbb6e4b81fb317574bcf7a489869b2ddcd136049245cefb9a035
font_01_sfnt_off00010edc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EDC 10148 bytes
SHA-256: f71c7f4fe52702c1c8a1c4446e5da01ec162f61cb9d85e3de8c1502d68396da8

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