Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9967a31178e817c…

MALICIOUS

PDF

65.2 KB Created: 2021-02-07 21:24:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 83d2c2d260652ad586f2aa56f424217c SHA-1: 08bb27f7838b778f434efa39b1d24b112bbeb04f SHA-256: f9967a31178e817c803fabcb2489e9d7956cf342c8dfa7f800f5205f90f7f272
104 Risk Score

Malware Insights

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

The file is a PDF document flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that leads to a keyword search on a suspicious domain, likely a lure for further malicious activity. The presence of a 'download button' heuristic further supports a phishing or social engineering attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://jacksth.ru/wb?keyword=trip%20to%20bhangarh%20movie%20%20in%20hd PDF link annotation
    • https://cdn.sqhk.co/xebosulog/zjgxjgV/podcast_addict_app_continuous_play.pdfIn PDF document text
    • http://detonic-ordina.website/degogufofoy5dpv.pdfIn PDF document text
    • http://vsedlyatebya.xyz/89988043073d5nhg.pdfIn PDF document text
    • http://heleogose.online/32146232373eb4dc.pdfIn PDF document text
    • https://cdn.sqhk.co/zegofurop/jigc4hf/tower_running_uk_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/limiwebu/cjehhha/59695231319.pdfIn PDF document text
    • http://summ-ita.space/mozukimulesuziwuse5ty39.pdfIn PDF document text
    • https://cdn.sqhk.co/jivomawufem/SGVPahb/dubipimonoketi.pdfIn PDF document text
    • http://jobs-ingenieur.best/chaganti_koteswara_rao_books_freexdu15.pdfIn PDF document text
    • https://cdn.sqhk.co/zimuteraf/hjajfij/54762839873.pdfIn PDF document text
    • https://cdn.sqhk.co/dafibuxoki/ibEBUhg/boss_fight_games_android.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/jadere/25678628994.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/palagezobugovikobip.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/computer_virus_full_form_wikipedia.pdfIn PDF document text
    • https://s3.amazonaws.com/varoximu/bukodefolezugi.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/fanfare_for_the_common_man_piano_sheet.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_off0000c05a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC05A 5312 bytes
SHA-256: 25388b1ff08970180b295720884b1581df1a19722442781493692d59921632a2
font_01_sfnt_off0000d23f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD23F 11092 bytes
SHA-256: 9fd3522fb35559c070f8612c18b6f94ac1318554344d5b1569054e440d3f5f75

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