Malicious PDF — malware analysis report

Static analysis result for SHA-256 7edfcea48bcc852d…

MALICIOUS

PDF

48.5 KB Created: 2020-08-30 00:38:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a77f585d1fa0f28d08d26b68533fd4c3 SHA-1: 62386395c296574fdd7a518e6eac7503d1bfc0ce SHA-256: 7edfcea48bcc852d07bbdae27d9da3e627a5179990c38194c881cad3ff9af0b5
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation, likely to trick users into downloading software. The embedded document body text and extracted URLs point to a lure for 'atom launcher pro apk free', which is then redirected through 'ttraff.com'. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to deliver a second-stage payload, potentially via a JavaScript exploit.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=atom+launcher+pro+apk+free In PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/miliwimefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2599/5688/files/sublime_text_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6337/7048/files/26130079016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7083/3319/files/vobewibitubiropivomi.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_237d3ab74ea845c88c79e92779e2444f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_de1982beb60f4633a0fc9de9b3d86fd8.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_b0869b92a508407a95528e431fe236b3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1be480_7380145ea6a241a7bf2c59460a7bbbae.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/caminito_tango_partitura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6741/5457/files/plasmodium_parasite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0714/8185/files/microeconomics_krugman_3rd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0496/7581/files/appraisal_waiver_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9434/3841/files/78984134544.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54A7 1560 bytes
SHA-256: 71337577fef36e46ce718a09ca2836f03782d5f6ddaf742f46b904026ecd8998
font_01_sfnt_off00005c98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C98 4964 bytes
SHA-256: 7cdd1978cfe052ad61852fdbfdd41cfb97e476eabb924a9fe8c488e71f1577fc
font_02_sfnt_off00006d41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D41 10732 bytes
SHA-256: bbc9fb228e40653fcf1ddb5e8149f4031dc8ee47fad20cd8b784c58acc1e9a0b
font_03_sfnt_off000091ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91AE 16060 bytes
SHA-256: bb4620ae2308066493f479cb0495314a41e91f5b0bfb2a754d9bad2ef34af03d
font_04_sfnt_off0000a644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA644 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f