Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd6b6d0db2ecdd2a…

MALICIOUS

PDF

44.6 KB Created: 2020-10-12 03:48:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 388ed0f5d3f55ed2c6e4847c51c65bb2 SHA-1: 6c63ad082c09b0386f7406fe09d977443797ff96 SHA-256: bd6b6d0db2ecdd2a830dd00f1bd2549d62592d5392fdfca8e35da2c3eff37a02
124 Risk Score

Malware Insights

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

This PDF file contains embedded links that point to known malicious redirector infrastructure, specifically 'https://cctraff.ru/pify?keyword=super+mario+advance+2+rom+emuparadise'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The presence of numerous links to disposable hosting further indicates a link farm designed to distribute malicious content or facilitate phishing. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://cctraff.ru/pify?keyword=super+mario+advance+2+rom+emuparadise In PDF document text
    • https://site-1043519.mozfiles.com/files/1043519/86788641327.pdfIn PDF document text
    • https://site-1044113.mozfiles.com/files/1044113/27695116728.pdfIn PDF document text
    • https://site-1043337.mozfiles.com/files/1043337/43717040455.pdfIn PDF document text
    • https://site-1039807.mozfiles.com/files/1039807/jalisebewatagawok.pdfIn PDF document text
    • https://site-1037010.mozfiles.com/files/1037010/ruvotebapuvosawaxabi.pdfIn PDF document text
    • https://site-1039182.mozfiles.com/files/1039182/nepaxolotosogofig.pdfIn PDF document text
    • https://site-1041865.mozfiles.com/files/1041865/25801949157.pdfIn PDF document text
    • https://site-1043599.mozfiles.com/files/1043599/77633083219.pdfIn PDF document text
    • https://site-1037101.mozfiles.com/files/1037101/40927798313.pdfIn PDF document text
    • https://site-1037204.mozfiles.com/files/1037204/33679798704.pdfIn PDF document text
    • https://site-1037875.mozfiles.com/files/1037875/gojizeleferale.pdfIn PDF document text
    • https://site-1037114.mozfiles.com/files/1037114/29924411549.pdfIn PDF document text
    • https://site-1036884.mozfiles.com/files/1036884/pebazegelisametozu.pdfIn PDF document text
    • http://zomefe.basilelimeade.com/uploads/1/3/1/4/131411896/98a6ca7901ae.pdfIn PDF document text
    • http://gugeruni.wilsonboosterclub.com/uploads/1/3/0/8/130814235/6988445.pdfIn PDF document text
    • http://files.armytrailrunner.com/uploads/1/3/1/4/131412558/dopor.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
    • 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_off00006075.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6075 5284 bytes
SHA-256: 95377e050a228eb063588fa74d18e0948b84bc3b05a47a48f980c4d608a6dd46
font_01_sfnt_off00007245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7245 10760 bytes
SHA-256: 3e4e9b0b83139d22ef4c3bcc3404cdc260b4965cb762d829aac7512efa577c91
font_02_sfnt_off0000969c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x969C 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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