Malicious PDF — malware analysis report

Static analysis result for SHA-256 174677fbfc3598b6…

MALICIOUS

PDF

47.5 KB Created: 2020-10-29 17:45:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 2e64d0e4dd4f9a9304bc7adf6e540400 SHA-1: e337cd4d7640922f04e4c1418a384a129fff023c SHA-256: 174677fbfc3598b6b04be902d01875e272cc65e3e051e1aaccf73bba3040e4f6
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 linking to known malicious redirector infrastructure, specifically pointing to 'cctraff.ru'. The document body, though heavily obfuscated, contains a URL that appears to be a lure for free movie downloads, which aligns with the malicious redirector. The PDF also contains a mass external PDF link farm, indicating a potential SEO poisoning or link farm strategy to distribute 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=forgetting+sarah+marshall+watch+online+free In PDF document text
    • https://damijuvik.weebly.com/uploads/1/3/1/3/131381376/zudamivajet-xemezusokufobin.pdfIn PDF document text
    • https://mijisurux.weebly.com/uploads/1/3/1/0/131070147/loziwowew_jijonepoxa_molojokasaj_sonedewelon.pdfIn PDF document text
    • https://tenasusuboziwid.weebly.com/uploads/1/3/4/3/134349012/5e543252be.pdfIn PDF document text
    • https://ziperivowupidu.weebly.com/uploads/1/3/1/3/131381589/kopibu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7d9a80a-f37e-4219-a002-c6569184ae55/18432973288.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/daeb7b01-160e-4804-add1-17031a72f2fd/57637494055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7959/0597/files/pokemon_soul_silver_randomizer_rom_download_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7858659-5551-453b-ab51-6444815da343/sawub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8771c75-233e-44f5-92f0-2f9304b0f171/mesategowatuwapibezakaza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/091961aa-726e-4cdf-bcb5-7b9f02635fbc/pusewokenilanagovuluput.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3db905ab-000c-4af3-90b5-c1b8c23e00a6/winogolubapirasa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d06029c-6eb0-4a7b-ac48-fca41f439575/10815611628.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f7ab2f3-fc96-41dd-8580-07984904dea4/breve_historia_de_cuba_jaime_suchlicki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2162/2184/files/1485319035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8021/3170/files/58906862149.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A04 5344 bytes
SHA-256: 6e25e85bc01f5b36c275e080c677c36b6ba5227afe05fe9176b380812aca41a3
font_01_sfnt_off00008c21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C21 10740 bytes
SHA-256: 77d00938a18c0714a047671782d62c5c920cbf83a785ddce050b7816127f9e24

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