Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2bedb662234f175…

MALICIOUS

PDF

31.7 KB Created: 2020-08-11 13:44:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6425a603a8c248daf08cedcf0ca84a24 SHA-1: 63858cc558818f1000ced54dfff19826d51358b4 SHA-256: f2bedb662234f175cf2613a6382de3957d5083c4ce6617c7132a4a08376d6d40
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for redirecting users to malicious sites. One of the primary links, 'https://ttraff.ru/pify?keyword=ballade+pour+adeline+sheet+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to contain references to sheet music and the tool used to generate the PDF, likely as a lure. The presence of a link farm further supports the malicious intent.

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=ballade+pour+adeline+sheet+pdf
    • http://files.airprogerogia.com/uploads/1/3/1/4/131437513/gegeg-muvitiwezozub-veguba-zalifadum.pdf
    • http://files.latoyaharrisministries.com/uploads/1/3/0/7/130739731/c07c6e8a41.pdf
    • http://files.hedgieloving.com/uploads/1/3/1/4/131407823/kikejewavudogekuvopi.pdf
    • http://jidege.freehomehealthaidetraining.com/uploads/1/3/1/3/131383791/gawaxarenaj-muxobixot-ferek-zuremikenusuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/8271/9136/files/meduduwemadige.pdf
    • https://cdn.shopify.com/s/files/1/0434/8418/4728/files/gorizux.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nawujumukupuzuwoxelojoses.pdf
    • https://cdn.shopify.com/s/files/1/0437/0006/0310/files/fanemejilog.pdf
    • https://cdn.shopify.com/s/files/1/0430/6563/9073/files/debosuseworijopoxu.pdf
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/gigisike.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tiwimuz.pdf
    • https://cdn.shopify.com/s/files/1/0448/4556/4065/files/2d_array_programs_in_c.pdf
    • https://cdn.shopify.com/s/files/1/0431/2973/3282/files/bujuwovu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5641/4363/files/79007090914.pdf
    • https://cdn.shopify.com/s/files/1/0432/3924/3943/files/fovepufasokukinujumiz.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_off00004351.bin
060f922eff03119f9656e607008048ebeb0f2bc652f585d8ed7e4cc67d925a8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4351 5180 bytes
font_01_sfnt_off000054de.bin
c12078de918ec392b941b3464aa40b71aa83962fed9fa939685a31c66afe9250		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54DE 8604 bytes

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