Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d91f21083d32942…

MALICIOUS

PDF

67.5 KB Created: 2020-12-22 12:19:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 7bf34db668736c9d3ca02f7d861c5f90 SHA-1: 595ae6df7c202876bd047d4002059632a54f5359 SHA-256: 7d91f21083d3294222b532572cda2f4f35d3aaa4e2dde5691586d2a210b6f95d
214 Risk Score

Malware Insights

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

This PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, https://gettraff.ru/123?utm_term=dimensional+dervish+build+pathfinder, is likely intended to lead the user to a phishing or malware distribution site. The document also contains a large number of external PDF links, suggesting it may be part of a link farm or SEO manipulation scheme, further supporting its malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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.
  • 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=dimensional+dervish+build+pathfinder In PDF document text
    • https://buluzuzumaz.weebly.com/uploads/1/3/1/6/131636727/7593995.pdfIn PDF document text
    • https://rixajijinuroje.weebly.com/uploads/1/3/4/4/134473879/toretawe_jebujokoluw.pdfIn PDF document text
    • https://nuzilemuf.weebly.com/uploads/1/3/4/4/134479477/vifera.pdfIn PDF document text
    • https://pezopipowom.weebly.com/uploads/1/3/1/4/131406060/d4f70825.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426267/normal_5fce18daccf5e.pdfIn PDF document text
    • https://jinokafolamod.weebly.com/uploads/1/3/4/3/134310646/bf1f02112032.pdfIn 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/5fbce344be7cfc36344e8aaf/t/5fbf686a2dd96f5918e741e3/1606379628030/city_green_book_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/440ed864-6ad0-404e-9032-8e6e45208c90/anime_like_black_lagoon_and_cowboy_bebop.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce4d65bb7ea8683c97fa18/t/5fd605c2034a586a4f397b40/1607861707640/chromate_de_potassium_formule.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1677cc30a162e0c560a1b/t/5fca08e33ff94c207e0f4c59/1607076071089/tadamexoximamag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72f8a7f9-4ee3-474e-97b3-2603c37c6df4/raid_shadow_legends_best_champions_for_campaign.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c6a4a87939686407af5f/t/5fc139d82dd96f59181bf607/1606498777397/ruzoxizuxelep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b7663a0-bb76-4d16-9f9e-841b22e207db/72844136691.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_off0000cb50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB50 5480 bytes
SHA-256: 982f29952c39ba6840373e0fece3f12bc2fdbcbba751db5f83c5dcc446fbf3c5
font_01_sfnt_off0000ddc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC6 10496 bytes
SHA-256: f3fd552eabff8db91aeeae966d92f6849dde61f39bdb074270ea46ae70c5de7c

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