Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0c33c7c51bff2f6…

MALICIOUS

PDF

44.6 KB Created: 2020-10-13 13:53:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 2d3800680036121d2d091d365ded9201 SHA-1: f027b7de698916e531c63b42d9647a77b8bdb973 SHA-256: d0c33c7c51bff2f65697f63662fc50f89abe6bed5c230786a39ef7ea853f8542
154 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'facetune apk cracked 2020' and the malicious URL, suggesting a lure for cracked software. The PDF also functions as a link farm, directing users to a large number of other PDF files, likely for SEO manipulation or to host further malicious content.

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 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://cctraff.ru/strik?keyword=facetune+apk+cracked+2020 In PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/40ddfa4d7f4e3e.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/7971455.pdfIn PDF document text
    • https://site-1036640.mozfiles.com/files/1036640/20567151087.pdfIn PDF document text
    • https://site-1044191.mozfiles.com/files/1044191/59440882944.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8009/7702/files/gamazurodogesizetanom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/6893/5330/files/38321491418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5649/1417/files/piwozijabadelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7162/6659/files/64460352888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8391/8229/files/14749614800.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a30b20d-df8d-4695-8a65-8648f6050ea5/4247369920.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07791d63-2393-4cc8-b0c9-ca00e3e7568e/purob.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_off000070fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70FA 5152 bytes
SHA-256: 2d3816a0339f4390409a062d8928215b8307af5a281db8196c93ecc7824ba6dc
font_01_sfnt_off00008290.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8290 10392 bytes
SHA-256: 2db6f8aceeedff203ac13902d44350cd5e943bfd940945e894e7e11459cffd43

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