Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa1a3be4538e0592…

MALICIOUS

PDF

239.2 KB Created: 2021-03-18 04:39:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 86a628840a02b638d4e172b8b57b4687 SHA-1: b8fa6398e5ed18cc943e904f5fbc8cb96314bdb7 SHA-256: aa1a3be4538e05925646a1a0dc46e96980873819d08e6ed35741341c2f6edb37
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9932

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://druttle.ru/strik?utm_term=2nd+edition+monster+manual PDF link annotation
    • https://fajesafopumusid.weebly.com/uploads/1/3/1/8/131871419/5219100.pdfIn PDF document text
    • http://ionatr.space/what_does_the_black_ribbon_mean_on_instagrampolmg.pdfIn PDF document text
    • http://smeh-mif.space/30150660840o90gk.pdfIn PDF document text
    • https://jafipununevov.weebly.com/uploads/1/3/0/8/130814040/bugej_xelifabok.pdfIn PDF document text
    • http://vovality.club/capitulo_4a-_4_asking_questions_contoxonv.pdfIn PDF document text
    • https://cdn.sqhk.co/puzadowoke/N0mhdYi/bowser_s_minions_all_bosses.pdfIn PDF document text
    • https://cdn.sqhk.co/xamewivuvus/dVhbicE/kemoleduwexufobigejaxeg.pdfIn PDF document text
    • https://cdn.sqhk.co/boketumejipa/cqjjA6f/82454831399.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/5jgdBvb/snakes_and_ladders_board_game.pdfIn PDF document text
    • http://momentshop.website/peace_like_a_river_satbkif4e.pdfIn PDF document text
    • http://mugedly.xyz/54026605094gui2s.pdfIn PDF document text
    • https://cdn.sqhk.co/budajawisore/APrDiaZ/82857406680.pdfIn PDF document text
    • http://copyright-helps-team.com/bimani_onnai_bodo_filmr5q1e.pdfIn PDF document text
    • http://eduha.online/35906827795rboma.pdfIn PDF document text
    • http://alteramaks.world/how_to_learn_apprentice_riding_in_wowfkqi4.pdfIn PDF document text
    • https://mapivabivex.weebly.com/uploads/1/3/0/7/130776319/ponowufolabawi.pdfIn PDF document text
    • https://lemitixodage.weebly.com/uploads/1/3/4/8/134868200/7736807.pdfIn PDF document text
    • http://edayafar.xyz/how_to_clean_edgestar_ice_makernbb7e.pdfIn PDF document text
    • https://cdn.sqhk.co/sepagumal/cigDnEU/kogoposipurafa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://90ff81fc-98d9-4e53-96a3-aaa5c1c2042e.filesusr.com/ugd/bb5aff_9f8dcb8eaf784753ac2d74be27d1448e.pdf?index=trueIn PDF document text
    • https://469ee322-798e-4c1d-9571-af6764901f97.filesusr.com/ugd/57169b_e4bf85e87da3420a8d0c2e602f305d72.pdf?index=trueIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00035cb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35CB3 5008 bytes
SHA-256: f75503c2213e3e76cbc6f17b3bb2183cb8d44f4806b59e302ad7dd7d110d2c43
font_01_sfnt_off00036d9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36D9F 12892 bytes
SHA-256: 29ec893d1b3d84b687814c1ef394789dd9319019a167a9950852678affe9f579
font_02_sfnt_off00039756.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39756 16204 bytes
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501

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