Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7c044192d834aa0…

MALICIOUS

PDF

80.6 KB Created: 2021-03-18 02:59:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ec0d8529232d7d3fc61d449e356060ac SHA-1: 8cdec6b771aa7c5fda10dc4274d3f0c6a4088f4f SHA-256: d7c044192d834aa0a846f0b528e2557b3db787b789e8a33b7897273470deefc1
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content, likely for phishing or 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://resalured.ru/strik?utm_term=whirlpool+refrigerator+ice+machine+not+making+ice PDF link annotation
    • http://sodahub.pro/2005_honda_pilot_steering_issuev7oif.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403540/normal_60055f8121a4a.pdfIn PDF document text
    • https://cdn.sqhk.co/fobonelaga/Djajcje/vololezexuxatamaliwowid.pdfIn PDF document text
    • http://tejidirexe.mywebcommunity.org/92379709846.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/Rwyibgd/amazon_selling_fees_too_high.pdfIn PDF document text
    • http://dafagaketa.sportsontheweb.net/mejores_apps_finanzas_personales.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454678/normal_603554c7ecc6d.pdfIn PDF document text
    • http://lami-lashes.site/21334062275ozb86.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375203/normal_5fd636a5b4509.pdfIn PDF document text
    • http://qwertyujg.xyz/bedingungsloses_grundeinkommen_vor_und_nachteilemblmf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493920/normal_6020b6910aa2d.pdfIn PDF document text
    • http://mobufuwiwid.medianewsonline.com/armonia_cromatica_musical.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/50b2cc3e-a79c-4fce-ae87-51e653f3bdb0/how_to_draw_realistic_eyebrows.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/tricky_maths_questions_and_answers_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/pufero.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/drawing_polygons_on_a_coordinate_plane_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7589ed85-ac30-4612-bdbb-38c6b35fd690/nurubezegalise.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e14e319e-a838-4f7b-ad67-e5eedf44c31b/things_guys_like_to_hear_from_their_girlfriends_over_text.pdfIn PDF document text
    • https://s3.amazonaws.com/lawakux/worudetaxi.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_off0000fc26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC26 5328 bytes
SHA-256: f55736d2bce109ed95641c452d1fe10998a0b4f6a91a7d890faf0eb40454bf74
font_01_sfnt_off00010e2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E2F 11324 bytes
SHA-256: 2e871d7f9530205cceb4b45b3ad5b3fc46019c7bdd335ae12739fe5af9aea3d8

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