Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdd7af0ffc66be32…

MALICIOUS

PDF

49.8 KB Created: 2020-08-09 03:44:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f54b4a97adb55e0140b759f9255ec71 SHA-1: 3a8f0173ca75cdbaf446075040a9e3d2501f3ede SHA-256: fdd7af0ffc66be32d3b27effe275c21530266cc3be9353381af08ff617857256
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a known malicious redirector. The heuristic firings indicate a PDF link farm, suggesting the document's primary purpose is to distribute malicious links. No scripts were extracted from this sample, but the extensive link farm points towards a phishing or malware distribution campaign.

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.ru/pify?keyword=eloge+de+l+amour+alain+badiou+pdf
    • http://roteja.undeniabull.net/uploads/1/3/0/9/130968984/7775245.pdf
    • http://files.robinhoopes.com/uploads/1/3/0/7/130739260/jubijom.pdf
    • http://files.guillermoguareschi.com/uploads/1/3/1/3/131380847/7061705.pdf
    • http://files.annapicklesharvey.com/uploads/1/3/0/7/130775590/6139294.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84113106953.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30812088679.pdf
    • https://cdn.shopify.com/s/files/1/0431/0089/7440/files/vifigimakiwezoxusixegez.pdf
    • https://cdn.shopify.com/s/files/1/0433/7437/9157/files/77261936266.pdf
    • https://cdn.shopify.com/s/files/1/0429/7529/7689/files/20619014718.pdf
    • https://cdn.shopify.com/s/files/1/0430/3906/4225/files/96651334596.pdf
    • https://cdn.shopify.com/s/files/1/0434/5636/4709/files/print_borderless_pdf_mac.pdf
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/futapinaxela.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/parisibudipaxetiwori.pdf
    • https://cdn.shopify.com/s/files/1/0433/9974/1596/files/xorisowakugani.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_off0000697d.bin
83496210559c9f4dc0005051e0f086deb84a42887a2313087a5d9eef3cf587f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x697D 5280 bytes
font_01_sfnt_off00007b5c.bin
62d44f8490999190b5562148d1147e68b7f2ae61752b261fb02386316ea975e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B5C 10508 bytes
font_02_sfnt_off00009f50.bin
814273727ba4de2bbc83f93a69aab6ade5307df3f7d8f7c60d0924aea25f1c2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F50 17828 bytes

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