Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1613397d1f09ab4…

MALICIOUS

PDF

105.2 KB Created: 2021-04-01 11:03:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: f48256653a9b54742d47ef35cef3736d SHA-1: c2184b90e751b771f1ef3783aac072e21655711f SHA-256: d1613397d1f09ab47e696f321bbec961dbe67822a532d32dd4eae831b01e55fa
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9949

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://jacksth.ru/123?utm_term=interculturalism+and+multiculturalism+similarities+and+differences+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4446776/normal_5fcc927dc9fed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410989/normal_5fc9619533702.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419410/normal_6034483b095d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380082/normal_60139ebaea570.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369189/normal_5fd8ce988ba6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489035/normal_601a2e8bc73a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495050/normal_5fd9aa9f2505b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373008/normal_606535eb0b5d7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372735/normal_5fc60e0fcd0af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371266/normal_5fd8b346bfe2d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501980/normal_5fc72993df809.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414498/normal_605063a08dd26.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426687/normal_6000e81fdc46d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6a34197-88bc-4085-9c38-933da77fae92/78122172241.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24cc51fe-86b3-495a-b06c-47cd3ac2eca6/what_do_green_tree_frogs_eat_besides_insects.pdfIn PDF document text
    • https://s3.amazonaws.com/ladiwuzetawedi/91864624290.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/melanujaromegugizi.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/christmas_cake_images_free.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/american_english_file_teacher_book.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/primary_aldosteronism_jcem_guideline.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/267fa46b-1627-4c4c-bc15-0b2297897809/the_monkees_daydream_believer_episode.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/decf8ed9-5066-4317-8943-f9bf98210f34/loranobon.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/kemenedupojapulatufu.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/14894091784.pdfIn PDF document text
    • https://s3.amazonaws.com/dipafuxe/sirod.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/bastards_full_movie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2fd1038-199f-4839-8795-6f7f33987d05/how_long_do_you_cook_a_thin_steak_on_a_george_foreman_grill.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_off00015ce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15CE2 5236 bytes
SHA-256: cbb32a796426737fc202718a1ba1182774151337c03bfd31f834a79a0d8e7897
font_01_sfnt_off00016e9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16E9E 11968 bytes
SHA-256: 45fbfb25b4a2eab1d269c58f0ae2059876ef70d0be4f71b243419498c05e01d6

Open this report in the interactive analyzer, or submit your own file for analysis.