Malicious PDF — malware analysis report

Static analysis result for SHA-256 1164dc4efc637eb3…

MALICIOUS

PDF

74.6 KB Created: 2021-02-06 21:46:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 57227be8a103fc6a65396d8fd5531c9e SHA-1: 29dfef83c5f5d9f410e0dda41718b5a56a41fb62 SHA-256: 1164dc4efc637eb340e5d08f090e510e17a06dc11b8d92471dc4c2d10d1f3708
96 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and appears to be a phishing lure disguised as a product listing. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs suggests a potential redirection to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/123?utm_term=battery+powered+night+light PDF link annotation
    • https://cdn.sqhk.co/lelabepena/Qge5gdy/redivawesebif.pdfIn PDF document text
    • https://cdn.sqhk.co/tepikipo/4lhhQgi/bible_word_search_puzzles_to_print.pdfIn PDF document text
    • https://filavemegu.weebly.com/uploads/1/3/4/8/134883773/1977147.pdfIn PDF document text
    • https://dolivosogokate.weebly.com/uploads/1/3/0/8/130874088/2293680.pdfIn PDF document text
    • https://cdn.sqhk.co/kinemefuwa/igZogd3/95966184591.pdfIn PDF document text
    • https://lotunesu.weebly.com/uploads/1/3/0/9/130969364/8d68e.pdfIn PDF document text
    • https://domenadonasi.weebly.com/uploads/1/3/0/8/130874365/4236255.pdfIn PDF document text
    • https://cdn.sqhk.co/niserutom/2gChfid/59623090301.pdfIn PDF document text
    • http://qwertyujg.xyz/wuponefoxedinetimegqt1t.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/vosimalume/musowimovutenuvekelozim.pdfIn PDF document text
    • https://s3.amazonaws.com/fomudebipefasu/bitdefender_internet_security_2018_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/pubopelej/16497762137.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/hemangiomas_hepaticos_multiples.pdfIn PDF document text
    • https://s3.amazonaws.com/minaxigevani/guntersville_fishing_report_june_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/centripetal_force_and_centripetal_acceleration_worksheet_answers.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_off0000e507.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE507 5284 bytes
SHA-256: b27651db82013a2167d6b716fc06a3c680de1559e121a48ad5426988644c1887
font_01_sfnt_off0000f715.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF715 11008 bytes
SHA-256: 59ed48e0e562fd02b702ff58bb895e2edd2bc381c51f3e023a09423b8cb32230