Malicious PDF — malware analysis report

Static analysis result for SHA-256 c31bb1f222b7a299…

MALICIOUS

PDF

42.6 KB Created: 2020-07-10 11:16:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 613c4397ef5098c376734190cc2b39d7 SHA-1: d086d4ee35997f942ce918c18fe0ac51dcf9df87 SHA-256: c31bb1f222b7a2996baf7e62b5ff20233996b1f658e1445230875768db704f5c
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to a redirector infrastructure. The document body text and embedded links suggest a lure related to 'Powerpoint presentation templates pdf'. The primary malicious link identified is https://ttraff.ru/wb?keyword=powerpoint%20presentation%20templates%20pdf, which likely leads to further malicious content or phishing pages. The presence of numerous SEO-optimized PDF links indicates a link farm strategy to distribute malicious content.

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/wb?keyword=powerpoint%20presentation%20templates%20pdf
    • http://files.isabellegiroux.net/uploads/1/3/2/6/132681566/wopote-kusenawir-zogasofomira.pdf
    • http://files.rayewood.net/uploads/1/3/2/6/132695839/3001621.pdf
    • http://files.emeraldtraceonline.org/uploads/1/3/1/3/131383982/1cefc07.pdf
    • http://files.christiestimber.com/uploads/1/3/2/3/132302815/a80bec9c772bc.pdf
    • http://files.moonglowhardtop.com/uploads/1/3/0/7/130775372/xarulazar.pdf
    • http://files.topgunathletics.com/uploads/1/3/2/6/132681213/fozubazazadigot.pdf
    • http://files.thetravellingsingh.com/uploads/1/3/2/3/132303374/315584.pdf
    • https://najewexel127601612.files.wordpress.com/2020/06/jatosiv.pdf
    • https://varotedip.files.wordpress.com/2020/06/69966884056.pdf
    • https://kamaveboziw.files.wordpress.com/2020/07/dofimafegegataj.pdf
    • https://nufovax.files.wordpress.com/2020/06/94174054883.pdf
    • https://zarowizodava.files.wordpress.com/2020/07/wagajebekopebamugegiba.pdf
    • https://namofor.files.wordpress.com/2020/06/81688229329.pdf
    • https://sarizedid486506968.files.wordpress.com/2020/07/galod.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/todexarim.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/woziki.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sivuduveserekolagaxabulux.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/magej.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16949815227.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_off00006b00.bin
33061f3d615743254fded2b464ca7a05191322650dbfc3cc03336fd6ca37b235
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B00 5068 bytes
font_01_sfnt_off00007c23.bin
308bb2d455a6bf6801b925116e4c847a86f2c2667ce5744fd85f628048692cc0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C23 9848 bytes