Malicious PDF — malware analysis report

Static analysis result for SHA-256 d19d2d4ac06ee1c4…

MALICIOUS

PDF

46.9 KB Created: 2020-07-25 12:38:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89ac6c4852c4a18a42edb001ce098f26 SHA-1: fa7b99b4c58a322f44c7341f00aefd2d85061a2c SHA-256: d19d2d4ac06ee1c4e0ec8ab2b74c3856ff2283d603e92d513e0015aea9b017f1
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a link farm. One critical heuristic indicates a malicious redirector link to 'ttraff.ru'. This suggests the document's primary purpose is to lure users to malicious sites, likely for phishing or to download further malware. No scripts were extracted, and the document body was heavily obfuscated.

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=traduction+cahier+de+recette+informatique
    • http://files.deleswaproductions.com/uploads/1/3/2/8/132815123/jesusip.pdf
    • http://files.cape912.com/uploads/1/3/1/1/131164159/3fc33afd2e8.pdf
    • http://files.australianupholstery.com/uploads/1/3/0/7/130776819/5133090.pdf
    • http://files.drrichardsonsnfp.org/uploads/1/3/1/3/131380469/8283429.pdf
    • http://files.bxsci83yearbook.org/uploads/1/3/1/4/131454586/mavelutevexusoma.pdf
    • http://files.australianupholstery.com/uploads/1/3/0/7/1307768
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/jevefawezopotogubaka.pdf
    • https://cdn.shopify.com/s/files/1/0433/2978/1918/files/16999038789.pdf
    • https://cdn.shopify.com/s/files/1/0431/2226/2178/files/mabujosobeki.pdf
    • https://cdn.shopify.com/s/files/1/0428/5313/8591/files/pokedonig.pdf
    • https://cdn.shopify.com/s/files/1/0431/3301/0082/files/jesixomuwujivapupin.pdf
    • https://cdn.shopify.com/s/files/1/0432/5752/8480/files/41179168636.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pegofegomena.pdf
    • https://cdn.shopify.com/s/files/1/0437/1814/8261/files/palanukoxetij.pdf
    • https://cdn.shopify.com/s/files/1/0438/1193/0274/files/62499950113.pdf
    • https://cdn.shopify.com/s/files/1/0437/8951/6962/files/wuluwazidevodolififex.pdf
    • https://cdn.shopify.com/s/files/1/0430/4027/6642/files/196241284.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/6819160869.pdf
    • https://cdn.shopify.com/s/files/1/0437/5199/7592/files/7927636876.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_off0000763a.bin
7c181417c2b67c96257accc63d2688dc5b03e108216c826d36e18f9f2ca85a0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x763A 5008 bytes
font_01_sfnt_off00008702.bin
a56b3c945200e4823e827e2e3ab7cacb218a81244c8987ee4b7e79f008534435		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8702 11780 bytes

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