Malicious PDF — malware analysis report

Static analysis result for SHA-256 e665851ceae3f4bb…

MALICIOUS

PDF

58.4 KB Created: 2020-08-06 08:02:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f013c70631e29e18637f3f9cc472156 SHA-1: 9cf7e2417073d23da4bbcb524e97d506c74d3a98 SHA-256: e665851ceae3f4bbfab321524c707926e0cd3bc6efb230328b6131f8e93e07cd
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 'ttraff.com'. This URL is embedded within the document body, suggesting a social engineering lure to trick the user into visiting a malicious site. The PDF also contains a large number of external PDF links, indicating a link farm strategy. No scripts were extracted from this sample.

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/pify?keyword=que+es+el+neoliberalismo+pdf
    • http://files.allendaleinsurance.com/uploads/1/3/0/8/130873851/ximupabaped.pdf
    • http://files.onebookonelife.com/uploads/1/3/0/7/130775992/ff50756ea81784.pdf
    • http://files.newhorizonperuvians.com/uploads/1/3/0/8/130813796/7820920.pdf
    • https://cdn.shopify.com/s/files/1/0433/9479/3635/files/grizzles_vs_spurs.pdf
    • https://cdn.shopify.com/s/files/1/0435/6653/0721/files/nabenovejezute.pdf
    • https://cdn.shopify.com/s/files/1/0431/3464/8482/files/65603889642.pdf
    • https://cdn.shopify.com/s/files/1/0428/3462/4679/files/java_programming_lab_viva_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/2589/0469/files/florida_rt-_6.pdf
    • https://cdn.shopify.com/s/files/1/0434/2644/7525/files/nifisako.pdf
    • https://cdn.shopify.com/s/files/1/0431/1321/8199/files/aspects_of_human_development.pdf
    • https://cdn.shopify.com/s/files/1/0430/5240/0793/files/11995392967.pdf
    • https://cdn.shopify.com/s/files/1/0429/4072/7463/files/64034022451.pdf
    • https://cdn.shopify.com/s/files/1/0437/9115/5361/files/92927197065.pdf
    • https://cdn.shopify.com/s/files/1/0439/4316/6107/files/sejoxebaj.pdf
    • https://cdn.shopify.com/s/files/1/0438/5511/8501/files/lupaniwu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0736/0667/files/wirenisefagumigibixod.pdf
    • https://cdn.shopify.com/s/files/1/0434/6563/8050/files/simplesmente_acontece_download.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/
    • https://cdn.shopify.com/s/files/1/0431

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a38c.bin
7c30f5e718482d0feb04ea9af9eb4be0a57dffb59ff80073eb438deaa7fd9d83		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA38C 5388 bytes
font_01_sfnt_off0000b5ba.bin
64ba43187b5df05b95168152c84b8dec5fd1495297b4be854a61cad0915a5e69		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB5BA 11416 bytes

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