Malicious PDF — malware analysis report

Static analysis result for SHA-256 3213d6749c95746f…

MALICIOUS

PDF

98.1 KB Created: 2021-01-11 00:09:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 4101dd42af659df6a3b59ff954759a3a SHA-1: 383e5082e9292bbf2025d0586a67b0c9c575910d SHA-256: 3213d6749c95746fae703ed50bf9846509a92af51e4afd3caadad1e74675f46a
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://gettraff.ru/123?utm_term=a2+rsvp+card+size'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of a malicious URL strongly suggests an attempt to lure the user to a harmful site, consistent with phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://gettraff.ru/123?utm_term=a2+rsvp+card+size In PDF document text
    • https://cdn-cms.f-static.net/uploads/4500200/normal_5fe91da56825d.pdfIn PDF document text
    • https://site-1180242.mozfiles.com/files/1180242/dragon_ball_legends_twitter_friendship.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421768/normal_5fe809de31205.pdfIn PDF document text
    • https://site-1241800.mozfiles.com/files/1241800/monument_valley_game_walkthrough_the_box.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466175/normal_5fd7c2ae2cb68.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491451/normal_5fc9fa6c002c3.pdfIn PDF document text
    • https://site-1176106.mozfiles.com/files/1176106/34.pdfIn PDF document text
    • https://site-1166680.mozfiles.com/files/1166680/24769805962.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476142/normal_5fdc606edaf9e.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/tutapaxi/kovapew.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000137e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137E9 5264 bytes
SHA-256: cc0947a0c48cbf077ec92ea495c4a3b174c1e392f790075ab38bb7588de58ca2
font_01_sfnt_off000149e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x149E9 3720 bytes
SHA-256: 6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
font_02_sfnt_off0001554c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1554C 11476 bytes
SHA-256: 73fda4bea6395cc9882f77a7a257e58ff8824a1c57307f4f4c1ac183b35e54e8

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