Malicious PDF — malware analysis report

Static analysis result for SHA-256 8098f8d232b3d197…

MALICIOUS

PDF

64.1 KB Created: 2020-12-18 22:14:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 8afe9752f62206daca9d0fa78ed4e19b SHA-1: 75259ef8e8fdff89692c1ecd0a90f6ac357513a9 SHA-256: 8098f8d232b3d1977eacb6ae805dddc55dfb2014a494ebd3a7394c5534612ecd
154 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The ML classifier also flagged this PDF with high confidence. Although no scripts were extracted, the presence of a malicious URL strongly suggests a phishing attempt to redirect the user to a malicious site.

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
  • 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://traffine.ru/123?utm_term=dunkin+donuts+pdf+menu In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc5d014ec917750a3f94da0/t/5fcc6d42d235d37878bdb59a/1607232835578/33321821838.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35fb7fec-d306-40be-beb1-a9c9c45a9db3/cpm_pre_calc_chapter_5_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6fa32a4492a057e20be12/t/5fc7c47a0791337046f26dbb/1606927482325/origami_paper_airplane_bat.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f79e2e34347c7044618a/t/5fc1a463bc819f1cf416797f/1606526053005/vizirit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f27d0e8e-e3ed-40f8-9caa-2423d1265b92/read_and_react_drills.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1939ac6d964583626ee44/t/5fc72cb43d56556d14387d33/1606888632944/download_magic_piano_tiles_3_mod_apk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf4edb474932ca266d080/1606218990071/time_master_pro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4c3d770-355e-49b1-a4f0-399f44efb7bb/sonoma_cigarettes_cost.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f08ebbe1-74b8-4b3e-84eb-1fffd8a7f362/how_to_get_bigger_calves_and_thighs.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6f01bd8c365012834ab76/t/5fd64fbd7fc52c2069217f8d/1607880638257/kiwovobokurorojizeribud.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd4b79189c5e4b69235aae/1606241146252/static_discharge_straps.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_off0000bfae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFAE 4912 bytes
SHA-256: 0af7e2abfb5facf3edd12899f85ac2f8a571f0e1a46a56358f110c84d96d6dbb
font_01_sfnt_off0000d064.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD064 10560 bytes
SHA-256: 7b34d8d67c36f40b2bc12d0a606762e4f9fe598cc0b3bef6f4af0d125c5a32c8

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