Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6ebe753a083a0d9…

MALICIOUS

PDF

36.9 KB Created: 2020-08-19 14:00:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d5bd0648d8cf936e662f948f041dbc83 SHA-1: 9b8845fb073f08d2310b4e0eee65b5feb0d356fd SHA-256: a6ebe753a083a0d9bf58cc208275b5395c95e324d288d7fa0738b0475e8bd45b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, with one heuristic specifically identifying it as a 'PDF SEO Link Farm'. The primary malicious URL, 'https://ttraff.com/pify?keyword=youreporter+incendio+milano', suggests a redirection mechanism. The presence of numerous links to external PDF files, many hosted on Shopify, indicates a strategy to distribute content or potentially lure users to malicious sites through a link farm. 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 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://ttraff.com/pify?keyword=youreporter+incendio+milano
    • http://files.o2smallhouses.com/uploads/1/3/0/9/130969332/0cc91122aea478.pdf
    • http://files.earthtechcivils.com/uploads/1/3/1/6/131637631/vogejokutimavasele.pdf
    • http://files.angelaeastwoodphotography.com/uploads/1/3/1/8/131871919/1eabde0a5b9b0f.pdf
    • http://files.neefmusic.com/uploads/1/3/2/7/132710671/zutekesatitopadub.pdf
    • http://kavisas.joyfulnoisepreschoolsandy.com/uploads/1/3/1/0/131071231/kidakewugexivu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9222/0840/files/xiviji.pdf
    • https://cdn.shopify.com/s/files/1/0434/4948/3426/files/magifajevavunomed.pdf
    • https://cdn.shopify.com/s/files/1/0429/5540/7519/files/nowel.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/cessna_150_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0443/6964/1628/files/menixumofopaxilo.pdf
    • https://cdn.shopify.com/s/files/1/0448/0958/4802/files/bullmastiff_puppy_care_guide.pdf
    • https://cdn.shopify.com/s/files/1/0428/8118/8003/files/jetagubawiwisivojuxesi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/vojosobaleseduzow.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004784.bin
c72eda390a392373a9f064b449f1e694439f2d36d778732a7b2ded9c2119c6bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4784 4884 bytes
font_01_sfnt_off000057fb.bin
8609757cbae2ccb618b5370ccaaa031f7743c98e0593c5699aa5a7aa65a0dcf7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57FB 9600 bytes
font_02_sfnt_off000078cf.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78CF 4324 bytes

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