Malicious PDF — malware analysis report

Static analysis result for SHA-256 a333b61f37cd679b…

MALICIOUS

PDF

40.4 KB Created: 2020-08-12 17:43:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b2ab15f6dc698028c17efb18c46d160 SHA-1: d4a6fa6d05435c270bc37c6f7953d81e79f1a4e1 SHA-256: a333b61f37cd679bae02e1dfb664c65fe466ea1e2e7ed83a4879e349f7e2d9de
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.com/pify?keyword=atmega+datasheet+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the intent is to trick the user into clicking the malicious link under the guise of accessing a datasheet.

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=atmega+datasheet+pdf
    • http://files.joanobeirne.com/uploads/1/3/0/9/130969889/furenibupa.pdf
    • http://wobiku.gratefulhomestead.net/uploads/1/3/0/7/130776644/1736142.pdf
    • http://files.ashleyhainesphotography.com/uploads/1/3/1/8/131871625/d63a4.pdf
    • http://xananod.mvireland.org/uploads/1/3/0/7/130776760/4846791.pdf
    • https://cdn.shopify.com/s/files/1/0439/7511/4910/files/fagilekukalurufuvufuno.pdf
    • https://cdn.shopify.com/s/files/1/0433/8758/4675/files/73265849822.pdf
    • https://cdn.shopify.com/s/files/1/0431/1161/2572/files/academic_english_reading_and_writing_across_the_disciplines_pearson.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0401/files/mco_1020._34_g.pdf
    • https://cdn.shopify.com/s/files/1/0434/0416/5285/files/joint_venture_accounting_entries.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jedufejaselikaruratemop.pdf
    • https://cdn.shopify.com/s/files/1/0429/6926/8383/files/sotigogopofezusirafug.pdf
    • https://cdn.shopify.com/s/files/1/0438/9198/2491/files/tata_naskah_akreditasi_puskesmas_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/3142/8248/files/el_bulli_libro_italiano.pdf
    • https://cdn.shopify.com/s/files/1/0438/0481/9613/files/oracle_12c_sql_fundamentals.pdf
    • https://cdn.shopify.com/s/files/1/0430/7265/1413/files/kofalevisomapovasudir.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_off000060ff.bin
f579a847033e687ed9e108eb68b7ee65ea267165c3feabf41fd4689ff23b8db3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60FF 5316 bytes
font_01_sfnt_off000072fd.bin
132bd8c1385abdcd5855b06cbffddeb22fefb7b4554d24ed619f16f49d7afa77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72FD 9920 bytes

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