Malicious PDF — malware analysis report

Static analysis result for SHA-256 d059259ded9cb03d…

MALICIOUS

PDF

75.1 KB Created: 2021-03-15 01:27:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 6b6f5fc9b49d843cfd094db76b008d85 SHA-1: 9e1c4c1289b057852b328916877a33e8e071874a SHA-256: d059259ded9cb03d460ad5f0a1e69055bd64038da46b053e340d4c2979a1fa59
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a phishing page disguised as a financial document guide. ClamAV and ML classifiers strongly indicate maliciousness, consistent with a phishing campaign. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to trick users into visiting malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/award?keyword=how+to+prepare+cash+flow+statement+direct+method+pdf PDF link annotation
    • https://cdn.sqhk.co/boguzivipel/jgieyoK/preset_lightroom_selebgram_dng.pdfIn PDF document text
    • http://microbladingcertificationdfw.org/33821043160ejo3.pdfIn PDF document text
    • https://cdn.sqhk.co/xidafigutoxa/gdjglje/skylanders_giants_3ds_gameplay.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407664/normal_5fe54539af349.pdfIn PDF document text
    • https://cdn.sqhk.co/jozazixefuf/9Uhhijs/teacher_discount_apple_music.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498893/normal_6007505b4849f.pdfIn PDF document text
    • http://shoop-ft.ru/cuore_edmondo_de_amicis_englishi1g0k.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384152/normal_5ff429a47a280.pdfIn PDF document text
    • https://cdn.sqhk.co/limizolaxa/PrioGjh/43142685265.pdfIn PDF document text
    • http://mattelipsticks.site/59626177974jyim3.pdfIn PDF document text
    • http://paktum.pro/68343227718o3b2h.pdfIn PDF document text
    • https://cdn.sqhk.co/bumegukomuza/cls2jdY/animal_jam_play_wild_membership_free.pdfIn PDF document text
    • https://cdn.sqhk.co/pigajifaw/hijrwhi/craftsy_patterns_knitting.pdfIn PDF document text
    • https://cdn.sqhk.co/pozigafo/ghqjbjg/kijofisamajokunuj.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/bulujono/petty_cash_book_format.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/zibat.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/wekelipokugokabofezinu.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_off0000e768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE768 5448 bytes
SHA-256: d413f7ed7efe0d9ea94ee5e2e2e77fbea889d87b5a4e36fcbb1bb5c08e1beb40
font_01_sfnt_off0000f9d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9D5 10980 bytes
SHA-256: d4f9f42639c28760e82ee4b29fdbebc8eac94ac450b66f4dea2d8ec023245573

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