Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0c178abdc4e4841…

MALICIOUS

PDF

44.2 KB Created: 2020-08-23 20:56:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e09376be2d2ec2900a4ff60b6ba5114 SHA-1: 45c91cc844903eabcb5ae9ee97719fcbfd4884ff SHA-256: b0c178abdc4e4841bfda85ac63e99045d5001e5777282b5ce733d214182df1e7
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector pointing to 'ttraff.com'. This heuristic, combined with the presence of numerous other links to external PDFs, suggests a link farm or redirection attack. The document body, though heavily obfuscated, contains the target URL, reinforcing the malicious intent. No scripts were extracted, but the PDF structure itself is used to deliver the malicious link.

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=fao+aquaculture+manual
    • http://files.scarletprofessor.com/uploads/1/3/0/7/130739747/c249cc818177.pdf
    • http://files.myhomesecurity.net/uploads/1/3/1/4/131453350/711f79675ebb9.pdf
    • http://files.worldswarmestsocks.com/uploads/1/3/1/8/131856398/2727814.pdf
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/the_anti_inflammation_diet_and_recipe_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/0334/7097/files/pugumotexewevovixa.pdf
    • https://cdn.shopify.com/s/files/1/0431/0440/3613/files/36394217267.pdf
    • https://cdn.shopify.com/s/files/1/0433/6254/9910/files/2952440102.pdf
    • https://cdn.shopify.com/s/files/1/0438/2962/4992/files/algebra_2_textbook_mcgraw_hill.pdf
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/20606060450.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/74171828521.pdf
    • https://cdn.shopify.com/s/files/1/0430/9807/9399/files/gakutilebexikojarevotoz.pdf
    • https://cdn.shopify.com/s/files/1/0435/3648/2458/files/28148288718.pdf
    • https://cdn.shopify.com/s/files/1/0433/1261/1481/files/convert_to_editable_word_file_online_free.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_off00007092.bin
4700db2d3cf636932e6fc936fec4958158c0f6952c15a1208665e2c723ca0509		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7092 4848 bytes
font_01_sfnt_off000080fe.bin
6149b393d89f0619f9a5e80c3d3d95d9a1fdb86fcdd8ce2a4fe1750373e1a8d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80FE 10444 bytes

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