Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd3af07257f22ecd…

MALICIOUS

PDF

39.8 KB Created: 2020-08-05 01:44:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b296907e55ac71f03b937eecd64e427e SHA-1: 69fb6fb4fb08ba88974d6a30cf47584da5b7c079 SHA-256: dd3af07257f22ecd8da0f0bdba6ba991479b49889d89b5cc574062d258791347
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL, suggesting a lure for users to click through. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to potentially improve search engine ranking or distribute malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=gk+capsule+pdf+bankers+adda
    • http://lokan.manhattanhope.com/uploads/1/3/2/3/132303410/8995853.pdf
    • http://files.windowcleanersvictoria.com/uploads/1/3/1/3/131379059/04fcff.pdf
    • http://files.septictankpumpinggwinett.com/uploads/1/3/0/7/130738622/e6631b4bc964d8.pdf
    • http://files.thetraveleducator.com/uploads/1/3/0/9/130969057/lawobosi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0236/3045/files/jisuberakuk.pdf
    • https://cdn.shopify.com/s/files/1/0433/3161/6918/files/sakagawezolejakuku.pdf
    • https://cdn.shopify.com/s/files/1/0429/2630/9535/files/39573942194.pdf
    • https://cdn.shopify.com/s/files/1/0433/9331/9079/files/64853812087.pdf
    • https://cdn.shopify.com/s/files/1/0440/4409/1557/files/jogoto.pdf
    • https://cdn.shopify.com/s/files/1/0433/1618/3205/files/marching_band_music.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69892687871.pdf
    • https://cdn.shopify.com/s/files/1/0435/7259/2801/files/fake_utility_bill_template_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/7437/9173/files/murukoram.pdf
    • https://cdn.shopify.com/s/files/1/0432/5693/8646/files/zefunugejabumofe.pdf
    • https://cdn.shopify.com/s/files/1/0430/1737/1797/files/menewopituvuro.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e09.bin
2f0b41e68e5853541ef611a66d2e5a109d7f1cb30434164efa7f0da1c9d0e908		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E09 5384 bytes
font_01_sfnt_off0000706c.bin
c6187214571280619f110c7bd984a4dfcfa1c1aafd4aaff6d88fb7b07f371121		 pdf-font-stream PDF embedded font (sfnt) at offset 0x706C 10008 bytes

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