Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b664a16e881b86a…

MALICIOUS

PDF

39.6 KB Created: 2020-08-05 19:41:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52a20ebd3f1218899b74a71619198614 SHA-1: b79af052b11228382583823532ef2ec53a369693 SHA-256: 3b664a16e881b86a72f959e6f8398515045a8890c55f5659a8ebd502aa3f768c
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of numerous embedded links, a technique often used for SEO manipulation or to redirect users to malicious sites. One critical heuristic firing indicates a direct link to a known malicious redirector at 'https://ttraff.com/wb?keyword=ir%20transmitter%20and%20receiver%20project%20pdf'. The document body contains garbled text and metadata indicating it was generated by wkhtmltopdf, suggesting it may not be a legitimate document.

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/wb?keyword=ir%20transmitter%20and%20receiver%20project%20pdf
    • http://zijutipal.chuckleddy.com/uploads/1/3/2/3/132302872/9904832.pdf
    • http://files.peoplehelperproject.com/uploads/1/3/2/7/132740925/japabuwoxukizu.pdf
    • http://files.bcwine.ca/uploads/1/3/1/4/131437987/7899841.pdf
    • https://cdn.shopify.com/s/files/1/0434/1825/5510/files/malayalam_calendar_2020_manorama.pdf
    • https://cdn.shopify.com/s/files/1/0433/7149/5574/files/8429265773.pdf
    • https://cdn.shopify.com/s/files/1/0430/5921/6533/files/12159285088.pdf
    • https://cdn.shopify.com/s/files/1/0429/3571/3958/files/rolebosaromogeruxarifud.pdf
    • https://cdn.shopify.com/s/files/1/0435/7623/0047/files/lafiwemotaxovekugesibeni.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/hebrew_bible_with_tamil_translation.pdf
    • https://cdn.shopify.com/s/files/1/0432/3278/8648/files/68857028875.pdf
    • https://cdn.shopify.com/s/files/1/0431/9097/6673/files/30708085441.pdf
    • https://cdn.shopify.com/s/files/1/0429/3017/6159/files/ansiedad_en_adolescentes_embarazadas.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vukabisozudetilo.pdf
    • https://cdn.shopify.com/s/files/1/0437/9040/1687/files/2010_volkswagen_golf_turbo_diesel.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_off00005d11.bin
5b7fb78910341fa6b14a15158277346c8c231095b20b7eabd9255beb64bb3fb4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D11 5344 bytes
font_01_sfnt_off00006f31.bin
398252603dfb835be672b0ad2ee604de184a94a381ef03d1c6ee0f531757602f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F31 10024 bytes

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