Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fb83cfa349ac704…

MALICIOUS

PDF

76.3 KB Created: 2021-02-25 14:23:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: d6e283b635f2b86df05b629b08c317d9 SHA-1: 6d82eebaddd11c2d3fb527255da41b127a13fd4c SHA-256: 5fb83cfa349ac704f883322fd0ad8725931c9f8596884b80da4432dc202e0a33
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains a heuristic indicating it's a lure to execute commands via the clipboard, suggesting an attempt to trick the user into running malicious code. The embedded URL points to a suspicious domain, likely serving as a download source for a secondary payload. ClamAV detection further confirms its malicious nature, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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/award?keyword=how+to+draw+self+portrait+in+illustrator PDF link annotation
    • https://cdn.sqhk.co/kuzosexiwugu/gc9yIhj/49737005989.pdfIn PDF document text
    • http://saxobupazes.sportsontheweb.net/is_canon_650d_a_good_camera.pdfIn PDF document text
    • https://cdn.sqhk.co/fodibaniwe/csIuibB/wwe_smackdown_live_fox.pdfIn PDF document text
    • https://cdn.sqhk.co/mafozerekat/75Szidb/geometry_dash_meltdown_download_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/fiwujumejuf/qhifjdg/alien_shooter_apk_download_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/juduxijumijo/RAjgheT/stories_your_choices_is_matter_in_rdr2.pdfIn PDF document text
    • https://cdn.sqhk.co/nomitusibop/s4Vgeie/cnbc_empires_of_new_york_episodes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/temujonuwu/spoken_english_conversation_sentences.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/samajorejutezaz.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/sokajaken.pdfIn PDF document text
    • https://s3.amazonaws.com/wikurixobelu/letter_c_tracing_worksheets_free.pdfIn PDF document text
    • http://pinopog.rf.gd/avira_antivirus_apk_pro.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/arcgis_map_10_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/game_ameba_pico_android.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE371 4968 bytes
SHA-256: 48606937c791aed37fcac9b16c994580df79aff938d454c4af8e45f76b94f727
font_01_sfnt_off0000f473.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF473 11548 bytes
SHA-256: bc1dfde683333ed89545fd61a4dd9ee645293aae0a16f4394e7f2bedb3e4554b
font_02_sfnt_off00011aac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AAC 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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