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)
MD5: a77f585d1fa0f28d08d26b68533fd4c3 SHA-1: 62386395c296574fdd7a518e6eac7503d1bfc0ce SHA-256: 7edfcea48bcc852d07bbdae27d9da3e627a5179990c38194c881cad3ff9af0b5
162 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 at 'ttraff.com'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and the presence of a 'SE_DOWNLOAD_BUTTON' heuristic suggest a phishing or scam attempt. The document body, though heavily obfuscated, contains the malicious URL, indicating an attempt to trick the user into downloading potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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.
  • 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
    • http://fontawesome.iohttp://fontawesome.io/license/
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/miliwimefa.pdf
    • https://cdn.shopify.com/s/files/1/0439/2599/5688/files/sublime_text_python.pdf
    • https://cdn.shopify.com/s/files/1/0434/6337/7048/files/26130079016.pdf
    • https://cdn.shopify.com/s/files/1/0428/7083/3319/files/vobewibitubiropivomi.pdf
    • https://static.usrfiles.com/ugd/b8c837_237d3ab74ea845c88c79e92779e2444f.pdf
    • https://static.usrfiles.com/ugd/b8c837_de1982beb60f4633a0fc9de9b3d86fd8.pdf
    • https://static.usrfiles.com/ugd/b8c837_b0869b92a508407a95528e431fe236b3.pdf
    • https://static.usrfiles.com/ugd/1be480_7380145ea6a241a7bf2c59460a7bbbae.pdf
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/caminito_tango_partitura.pdf
    • https://cdn.shopify.com/s/files/1/0435/6741/5457/files/plasmodium_parasite.pdf
    • https://cdn.shopify.com/s/files/1/0430/0714/8185/files/microeconomics_krugman_3rd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0436/0496/7581/files/appraisal_waiver_form.pdf
    • https://cdn.shopify.com/s/files/1/0430/9434/3841/files/78984134544.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/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

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

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