Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab2c56492f322fb0…

MALICIOUS

PDF

81.6 KB Created: 2021-03-21 21:57:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 39a269b8e644ab8546903aec3de71bbf SHA-1: d3a1db4c21f076f1d12d9203d6f50ec7a623832f SHA-256: ab2c56492f322fb05953b4209828bf51ef6450e403a5c43a468bda2afe48c2c1
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://yafferge.ru/123?utm_term=brevet+2018+pondichery+pdf'. ML classification and ClamAV also flagged this file as malicious. While no scripts were extracted, the presence of a malicious URL strongly suggests an attempt to lure the user to a compromised site, likely for phishing or to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/123?utm_term=brevet+2018+pondichery+pdf In PDF document text
    • http://loziwazekon.medianewsonline.com/livro_de_administrao_financeira_e_oramentria.pdfIn PDF document text
    • http://vowufijetapiko.sportsontheweb.net/16347527535.pdfIn PDF document text
    • http://jolaxamitagifa.iblogger.org/wordalot_answers_241.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/firudegix/kegifapogokomexibivowuje.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/litowalolevuviguna.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/99447857634.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/22190329458.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d394a25f-d9d5-4075-9d6c-cead37897632/how_to_fill_a_ego-t_vape_pen.pdfIn PDF document text
    • http://kubegixojarabax.epizy.com/c_major_chord_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/31837327121.pdfIn PDF document text
    • https://s3.amazonaws.com/zalisujezajaje/32911260910.pdfIn PDF document text
    • http://livirava.atwebpages.com/wuxobedami.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/193b5d4d-772a-464d-80ff-97f503f45305/85786929960.pdfIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/jubivosopotimek.pdfIn PDF document text
    • http://xowobovu.myartsonline.com/arbys_melt_nutrition_value.pdfIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/41524483984.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/bikesales._com._au_android_app.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/camstudio_for_windows_10_64_bit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df030cd4-5a02-4bda-b62f-670c139ea4fb/58761971011.pdfIn PDF document text
    • https://s3.amazonaws.com/wefadep/architectural_concept_sheet_composition.pdfIn PDF document text
    • http://dejibokakar.onlinewebshop.net/rokivavepuxikovofiga.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/certified_information_systems_auditor_cisa_syllabus.pdfIn PDF document text
    • http://rixexoto.rf.gd/movijazowa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c9c166e-c782-440b-9b7a-66b6efb67c87/how_to_learn_djembe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e232b98c-59c0-4a46-90a2-aec53dce588b/xejep.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_off0000f91a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF91A 5556 bytes
SHA-256: bc41ca35f1dad001c819d380453d363554b820d916ffb5c8f6ff4cc06de4f344
font_01_sfnt_off00010c21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C21 13384 bytes
SHA-256: 9ef05a10ca83ba093d6277cc36d7b3954feb1b306d0020d1d2e8765d99144e4f

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