Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0988e63aa6c82ac…

MALICIOUS

PDF

58.4 KB Created: 2020-08-10 21:15:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe86ac5f1c84f7988b5cf9211a3520cb SHA-1: 2fe49ac1e0d88ee80564e020e35156f61b4876bc SHA-256: e0988e63aa6c82ace463dce30a8d13f27fc6486a662d67bf981bfc7b39752665
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=adventures+of+tom+sawyer+bangla+pdf'. This URL is embedded within the document body, suggesting a social engineering lure to trick users into clicking it. The PDF also exhibits characteristics of a link farm, with numerous external links, further supporting the malicious intent of redirecting users to potentially harmful sites.

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=adventures+of+tom+sawyer+bangla+pdf
    • http://files.mawubedzro.org/uploads/1/3/1/6/131606758/nuwujaluxu.pdf
    • http://mogaz.jackdogproductions.com/uploads/1/3/1/4/131482976/doduwexegare.pdf
    • http://files.lakewoodinstituteoftheatre.org/uploads/1/3/0/7/130775762/754d3d71f8f94da.pdf
    • https://cdn.shopify.com/s/files/1/0431/0715/6128/files/76189153986.pdf
    • https://cdn.shopify.com/s/files/1/0436/8377/4614/files/30246111905.pdf
    • https://cdn.shopify.com/s/files/1/0432/1568/3743/files/chris_hansen_soundboard.pdf
    • https://cdn.shopify.com/s/files/1/0428/1414/4675/files/34924895523.pdf
    • https://cdn.shopify.com/s/files/1/0432/0811/4340/files/ankle_brachial_pressure_index.pdf
    • https://cdn.shopify.com/s/files/1/0430/6052/7265/files/vuvasoxigubejirez.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sosivizugepu.pdf
    • https://cdn.shopify.com/s/files/1/0450/2175/7590/files/best_reader_for_android_smartphone.pdf
    • https://cdn.shopify.com/s/files/1/0432/6113/2968/files/wunepibatawigaxasivopedos.pdf
    • https://cdn.shopify.com/s/files/1/0431/0014/3777/files/makuguripixikelotiv.pdf
    • https://cdn.shopify.com/s/files/1/0440/8098/8310/files/blackmagic_micro_studio_camera_4k_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/3687/6695/files/como_converter_de_para_autocad.pdf
    • https://cdn.shopify.com/s/files/1/0435/5814/2120/files/91947700360.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/60968929978.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_off0000a4e4.bin
6c6eb0425dab7d82e03ac650ed26e7c56f70f8700a575e034c3e41048f263206
pdf-font-stream PDF embedded font (sfnt) at offset 0xA4E4 5744 bytes
font_01_sfnt_off0000b874.bin
0cf837838b2709bfc720f05f970b195e7df909d4f81bfea74ad55d7b3bc3bc77
pdf-font-stream PDF embedded font (sfnt) at offset 0xB874 10428 bytes