Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e065a7d37288f61…

MALICIOUS

PDF

60.9 KB Created: 2020-11-13 13:18:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 970e69db17fe448341bf6c4b0794f355 SHA-1: 6212d8fa73255ccf71c880a4545c175efed62dde SHA-256: 7e065a7d37288f61cc72dddbb272766592fcfab7921dbce2f59aedd3d6864152
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file is identified as malicious by ClamAV and ML classifiers, exhibiting characteristics of a phishing lure. It contains a single image and minimal text, typical of a screenshot designed to hide a clickable malicious link. The primary malicious URL, 'https://traffine.ru/123?utm_term=simon+2+alarm+system+manual', is flagged as a known malicious redirector, indicating its role in directing users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 1 text block(s), carries a click-outward action, and is only 60 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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=simon+2+alarm+system+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374371/normal_5f8b354f15ba6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500911/normal_5fad65634aaf6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465147/normal_5fadc7fddf25b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366398/normal_5f9614cb403f7.pdfIn PDF document text
    • https://pidadilux.weebly.com/uploads/1/3/4/6/134666204/lafomu-fowesutom-dabikituduxun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380871/normal_5fab22df2acec.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/0c39500f-818a-47be-93de-cde53750e251/pugididilivojibaxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b31b58b2-1ec5-47b2-8de1-e6b42f77cea3/race_car_games_2_players_y8.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0e6289a-dc2c-492e-8d6d-672b425c7716/lematefiwuxibera.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52394b02-0368-4f4c-b168-11c1ae5f66f7/45665270798.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/077c3327-1710-48f0-8901-a67fc7165cd4/4615563506.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19f58197-71d6-413a-9bbf-e91dd188e874/fajusepaxitivigok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65dbbf3f-7953-4964-9de7-18872be18328/vubisuzatolej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d89d655d-4e71-4088-9ff6-7d54366b9c5b/80341056915.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4221ccfd-8dcf-4432-816b-b4ed65b28def/student_teacher_introduction_letter_to_parent.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d087f3a-bfd2-4750-aeda-e1f7d5fca342/cricut_manual_setup.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_off0000ab22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB22 5052 bytes
SHA-256: 7794a602774dfb791fd34339b560ef69c2cf7e12814cfd49ac9450ab6dfa4693
font_01_sfnt_off0000bc22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC22 8348 bytes
SHA-256: b4f896d0b904302a79b382aa79875bacf60f2c82249988117ca2b664d9904d50
font_02_sfnt_off0000d888.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD888 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3