Malicious PDF — malware analysis report

Static analysis result for SHA-256 a49e9e7f4fa875ed…

MALICIOUS

PDF

70.4 KB Created: 2020-12-25 09:42:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: ae617409df87e5f47919eec1f5f3aaae SHA-1: ec5b8a4a15ab1c54b371417383da1156e0599c39 SHA-256: a49e9e7f4fa875ede6ef1ba94f9e61a60cfc44061e99eccce3dd94c1045ceae1
154 Risk Score
Tags
free-cdn-ebook-manual-lure

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://traffmen.ru/aws?utm_term=cv+template+free++south+africa'. This URL is likely used to deliver a malicious payload or phish for credentials. The ML classifier and ClamAV also flagged this PDF as malicious, indicating a high likelihood of malicious intent. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffmen.ru/aws?utm_term=cv+template+free++south+africa In PDF document text
    • https://cdn-cms.f-static.net/uploads/4443809/normal_5fa19b881a015.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476750/normal_5fa875f9dc0bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368759/normal_5f9392ed5b8bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457305/normal_5fae7c439fcab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380223/normal_5f8ae6c66ca1d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376126/normal_5fb3f861130f0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481663/normal_5fe2ce58d28ae.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/ruzumeb/autodesk_sketchbook_app_full_version.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/176abe08-8be3-4504-81da-f9294408d8bf/american_football_prediction_for_today.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f0e230f-fdbb-4a68-886d-8c927feba9b3/21547128796.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a834172d-3df9-4139-9dc8-343048e7aeaa/snes_mini_ebay_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/angkor_wat_tour_guide_tip.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/anna_karenina_book_in_russian.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6382ca79-e563-4f9b-9037-d6499556554b/shaggy_it_wasnt_me_download.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_off0000d68b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD68B 5220 bytes
SHA-256: 8008367000c9ff105c4ad4318fdebb5870db09a515f68cb60832ba7e50f74c47
font_01_sfnt_off0000e828.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE828 10496 bytes
SHA-256: 45f37e53b78930b752bb8158f5ee5a4ff1629201d1e7347191d2c63d9f52b2e6

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