Malicious PDF — malware analysis report

Static analysis result for SHA-256 d08e9d80cd5f318d…

MALICIOUS

PDF

70.9 KB Created: 2020-12-17 04:40:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 7b177d1a182b9b48a20f144239524642 SHA-1: d536cff15ce2b94de1297292ad257c875e2b0d18 SHA-256: d08e9d80cd5f318d5cf6980ba29110118b7d9d7cbcd869afbf67081f2a218b1d
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, which is designed to lure users to phishing or malware sites. The embedded URL, 'https://traffine.ru/strik?utm_term=watch+avengers+endgame+for+free+no+sign+up', is presented as an offer for free media content, a common social engineering tactic. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

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/strik?utm_term=watch+avengers+endgame+for+free+no+sign+up In 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/b750b8d3-7a5c-4b83-a6b3-ece7dd40e238/maxakofogafa.pdfIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/gore_cardioform_device.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2834392c50b1a1e81b518/t/5fc5c8992dd96f5918b6178d/1606797465412/otc_scan_tool_bundle.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ebbe5687f52b6b814126/t/5fc4d3c018e72e5fdb701b32/1606734786053/29344752089.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32040a46-5652-4cb3-98b7-8f6cde0a6fc8/xigofodowebisexunijapav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7cd65286-9d5e-4785-bc33-977743ffec4b/morovolumemolilorexiwo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e914b85a-a560-4010-a199-9f348c65a81d/95905731435.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf0afef3361272aead641/1606217903418/68270426075.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0eac55bcb0228a2828fa5/t/5fc399d06457125654aa8a96/1606654416741/biblical_courtship_paul_washer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55d65763-5218-42f9-9655-24f9c08eda2d/old_testament_quotes_in_mark.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf662feaf37e3b6493f06a/1606379055771/83454514825.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc12f0cbe9b6939510c9a47/t/5fccbb6dd336b863f0bf1caf/1607252846646/41617349907.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ea21e2fce462bc8c0024/t/5fc3eee13485235c863fc34c/1606676194570/brown_county_municipal_court_ohio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6a84f74-f5e8-4437-85da-cbc65e1fb4d4/king_air_c90_flight_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1ca817d0c8f249d471d79/t/5fc8147b43b29e7a5ae64559/1606947966183/64848292496.pdfIn PDF document text
    • https://s3.amazonaws.com/nepawigexa/tufabepozate.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_off0000d656.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD656 5608 bytes
SHA-256: 74fd81fce3797864b567374a091a38dc7bab7db5eb148fdaa0af13b0db1fd014
font_01_sfnt_off0000e958.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE958 10860 bytes
SHA-256: 329c9ced81f288cb68c576df5640c3c8c60bc8cb07d120618f7786e63fa62515

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