Malicious PDF — malware analysis report

Static analysis result for SHA-256 e466da88b8524a85…

MALICIOUS

PDF

126.9 KB Created: 2021-03-14 17:30:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9a260812ccfda3ef6c26894a2759e2c3 SHA-1: e258ab979d58f17dadc80bb687e28668ce5f2f6e SHA-256: e466da88b8524a857dec34d0754f65e46cc79c8c0ec426188ecd939eb9c68ea4
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 0.9996

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://jumiwimov.ru/123?utm_term=bennett+840+service+manual PDF link annotation
    • http://summ-green.fun/84_charing_cross_road_film_streaming_vfef3s9.pdfIn PDF document text
    • http://instapriz.online/52740173051uj73c.pdfIn PDF document text
    • http://obschee.xyz/88069541070ga34.pdfIn PDF document text
    • http://m-ryanaf.site/94791673893889za.pdfIn PDF document text
    • http://idealica-ituficiale.website/fufarikanms005.pdfIn PDF document text
    • http://kismykeitio.best/samsung_nx300_firmware_update_downloadfm33t.pdfIn PDF document text
    • http://totalcreditcheck.info/the_astonishing_power_of_emotions_free_ebookbhsz3.pdfIn PDF document text
    • http://naturelofo.mypressonline.com/31375392119.pdfIn PDF document text
    • http://dobofozepop.mygamesonline.org/elementary_linear_algebra_a_matrix_approach_student_solution_manual.pdfIn PDF document text
    • http://retys.space/sovejiyppvb.pdfIn PDF document text
    • http://7lessons.website/751224175327nmw.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://uploads.strikinglycdn.com/files/d6654d43-b8c5-4bf1-921c-61cd0fe093e9/general_packet_radio_service.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86426fb2-6a37-48db-8e80-2565fb103855/seroxibilituzi.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/ccleaner_professional_portable.pdfIn PDF document text
    • http://nosikugabuvisal.epizy.com/alphabet_chart_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tokudapele/un_mundo_feliz_aldous_huxley_resumen_por_capitulos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2beb737d-17d4-4353-88ff-66bae5085ced/82384482381.pdfIn PDF document text
    • https://s3.amazonaws.com/sazomo/spring_boot_controller_test_resttemplate.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/weteninoronezasugitewi.pdfIn PDF document text
    • http://pivesezo.epizy.com/53411881772.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/831cbf2b-4758-4572-8e51-50c719237151/36799037186.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/grade_9_physics_teacher_guide.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001a8db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A8DB 5252 bytes
SHA-256: 36b958f4e0e09daec1ae201c7cfd695f7364ee3b2852f4372dfdef778ae5e6cf
font_01_sfnt_off0001baa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BAA2 10972 bytes
SHA-256: ea81bc2c3dab36c8cd61ffaadaa9d2a40a46b5b78592108d161d9b5e35451c69
font_02_sfnt_off0001e000.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E000 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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