Malicious PDF — malware analysis report

Static analysis result for SHA-256 eddc718b2be0a459…

MALICIOUS

PDF

49.5 KB Created: 2020-08-09 11:08:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7632b8b5dbd55e77bb2c4241e6033a9c SHA-1: ba93bd9c4a94024d949ce384b13285f73e99fc3d SHA-256: eddc718b2be0a45971441eed7bcff23e18d3f4f553a23222d0914b864651eab1
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to benign content on Shopify. However, one critical heuristic firing indicates a link to a known malicious redirector, ttraff.cc. The document body, though heavily obfuscated, contains the same URL, suggesting the primary intent is to redirect the user to malicious infrastructure. No scripts were extracted, limiting the analysis of further stages.

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.cc/pify?keyword=endomyocardial+fibrosis+pdf
    • http://vokikero.oregontrailirissociety.com/uploads/1/3/0/9/130969204/vegevorupabep.pdf
    • http://files.purrfectlyhandmade.co.uk/uploads/1/3/2/8/132814996/xibepoxi-tiwizevapudex-dalate-gotarikutul.pdf
    • http://files.committedtolove.net/uploads/1/3/1/3/131381376/cc0f735b014.pdf
    • https://cdn.shopify.com/s/files/1/0435/0980/9318/files/2011_harley_touring_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0439/2045/7883/files/nyc_traffic_cameras.pdf
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/ruxukenenigobezen.pdf
    • https://cdn.shopify.com/s/files/1/0428/7194/7423/files/61966383547.pdf
    • https://cdn.shopify.com/s/files/1/0428/6650/7942/files/dexazivivixu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7319/1588/files/telugu_calendar_2020_andhra_pradesh.pdf
    • https://cdn.shopify.com/s/files/1/0430/4420/8797/files/motefufuzuzi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9599/0175/files/instagram_top_9.pdf
    • https://cdn.shopify.com/s/files/1/0441/0392/5912/files/basic_mechanical_drawing.pdf
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/accounting_rules.pdf
    • https://cdn.shopify.com/s/files/1/0429/6710/5687/files/controle_da_administrao_pblica_estratgia_concursos.pdf
    • https://cdn.shopify.com/s/files/1/0430/8166/2628/files/nalomagi.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_off000084e1.bin
7e9818a362f515772702a511fbf6f9d9ae5ed0de199a00a74b9c27ac241792dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84E1 5500 bytes
font_01_sfnt_off00009786.bin
c29be6e9e32500790c28aa11ded3a5260fc42bb6bce5801d4db62470d5cf896d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9786 9920 bytes

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