Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd06f58011e20e2c…

MALICIOUS

PDF

67.9 KB Created: 2020-08-17 11:45:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0839bff5014c4c27ceb8e3a0bcfee089 SHA-1: d1ff3b47a9e2025c7c71ed1c91999cdf1bc7b338 SHA-256: cd06f58011e20e2c362bec5e2bd93da5056301f50212670d344727f63a1d0111
128 Risk Score

Malware Insights

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

The PDF contains a lure related to a movie download, which is a common social engineering tactic. It includes a link to a redirector service, ttraff.cc, which is flagged as malicious. The document also contains a large number of links to other PDFs hosted on Shopify, likely part of a link farm to improve SEO for malicious content. No scripts were extracted, but the presence of the malicious redirector and the social engineering lure strongly suggests a phishing or malware distribution attempt.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=big+fish+movie++in+tamilrockers
    • http://buzon.colinguthrieking.org/uploads/1/3/1/6/131637881/135865.pdf
    • http://ribije.boyssummerschool.com.au/uploads/1/3/1/4/131483254/75c6b2.pdf
    • http://pobokik.thierrymontoya.net/uploads/1/3/2/8/132814930/054892906.pdf
    • http://files.haroutioun-derderian.com/uploads/1/3/1/3/131398424/c08560.pdf
    • http://nasijod.phaselinedefense.com/uploads/1/3/0/7/130739006/4807142.pdf
    • https://cdn.shopify.com/s/files/1/0428/5969/2198/files/developing_management_skills_8th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0447/9506/8565/files/microsoft_excel_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/1947/6896/files/89345800207.pdf
    • https://cdn.shopify.com/s/files/1/0428/5136/9127/files/57923951551.pdf
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/99147799901.pdf
    • https://cdn.shopify.com/s/files/1/0431/2439/2093/files/best_editor_app_for_ipad_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/4431/5041/files/dadafo.pdf
    • https://cdn.shopify.com/s/files/1/0436/4192/9886/files/the_kinks_picture_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/4044/8410/files/edit_file_free.pdf
    • https://cdn.shopify.com/s/files/1/0440/9117/9160/files/16910973684.pdf
    • https://cdn.shopify.com/s/files/1/0434/0393/5900/files/biocontrol_of_plant_pathogens.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a602.bin
c1acbd2844d3b5b4daa8c580ec41c1f1e68e7f58bfab7eca064fb7fddbca5558		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA602 5256 bytes
font_01_sfnt_off0000b7b7.bin
c300ece532c330080565a80bdb39197fe910222c0d0099f75696dfef0ddfb010		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB7B7 11268 bytes
font_02_sfnt_off0000de81.bin
80a1bc8478cc1fd3139b8c4b90a14a1edd7a59aa4392b1519244fb6f6624862e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE81 16232 bytes
font_03_sfnt_off0000f3f3.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F3 4324 bytes

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