Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1d132db447ebd95…

MALICIOUS

PDF

78.4 KB Created: 2021-03-18 09:55:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 15b017ebeae315c5b86c5b9516f48e3b SHA-1: f3c600baf4fd72422e68594e2aaef8d36a023113 SHA-256: f1d132db447ebd95570ea71464ff9097b712681519aabf7ebafd18e04789305e
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The embedded URL `https://lozipotod.ru/wix?keyword=dsm+5+pocket+guide+spiral` suggests a lure to a potentially malicious website. Although no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a phishing or malware distribution attempt, likely delivered via spearphishing.

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://lozipotod.ru/wix?keyword=dsm+5+pocket+guide+spiral PDF link annotation
    • https://cdn.sqhk.co/numavagoko/xXhias3/funifinakudareburivomuzi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421056/normal_6031d8cc222e9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459621/normal_603b7946145cb.pdfIn PDF document text
    • https://cdn.sqhk.co/wujugojuse/bLjgNji/swat_king_best_tactical_top_down_shooter_games.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383695/normal_6014e0fccb365.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455657/normal_5fe497058c27d.pdfIn PDF document text
    • https://cdn.sqhk.co/dabigewom/jdYgeif/9447558191.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464065/normal_601c5d15be47e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462986/normal_5fe4f47551edb.pdfIn PDF document text
    • https://cdn.sqhk.co/votojuxosaf/jjjxPjf/walking_dead_season_finale_spoilers.pdfIn PDF document text
    • https://cdn.sqhk.co/mogizilo/zjbgjwn/34547050003.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/wixatax/kepodonutofenarowazetiv.pdfIn PDF document text
    • https://s3.amazonaws.com/wegugus/agnathavasi_movie_status_videos.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/besuxewobikodovokuwifur.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/24164465785.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_off0000f38b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF38B 5580 bytes
SHA-256: 737f7970142bc915528938778a4b83d44d378d38650e53f518b8635fc53f4a4f
font_01_sfnt_off00010677.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10677 11000 bytes
SHA-256: 57674aab36e0cd943cf95f7118428fbf4231308a1ec6e53cb1eeb4e6cba081c2

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