Malicious PDF — malware analysis report

Static analysis result for SHA-256 973ddd02cc8c6c4f…

MALICIOUS

PDF

44.8 KB Created: 2020-08-09 11:02:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c8312435acdd8951a4a632c6eb06f40 SHA-1: 0229466c43511fc4865367a7eccbdfeb735a1536 SHA-256: 973ddd02cc8c6c4f6cee93c5da408c01572c2cfbf00da21f7cf493442af74b37
120 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to mimic legitimate PDF downloads, specifically for a religious text. The primary embedded URL, 'https://ttraff.cc/pify?keyword=catecismo+da+total+consagra%25C3%25A7%25C3%25A3o+pdf+download', is identified as a malicious redirector. This suggests the document's purpose is to lead users to malicious content through a deceptive lure.

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.cc/pify?keyword=catecismo+da+total+consagra%25C3%25A7%25C3%25A3o+pdf+download
    • http://files.baughmanbuzz.org/uploads/1/3/1/4/131406412/titozotuxakaruta.pdf
    • http://files.brucekatlincreates.com/uploads/1/3/1/4/131453595/35c14b.pdf
    • http://files.nataliepriester.com/uploads/1/3/1/6/131607029/e270a078d0afe8.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87913440599.pdf
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/mopuviraletozatilif.pdf
    • https://cdn.shopify.com/s/files/1/0432/3662/2498/files/18593313173.pdf
    • https://cdn.shopify.com/s/files/1/0431/4536/3610/files/60407660928.pdf
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/20416539025.pdf
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/atomic_structure_of_carbon.pdf
    • https://cdn.shopify.com/s/files/1/0434/5148/2278/files/tipabavatibino.pdf
    • https://cdn.shopify.com/s/files/1/0435/7731/1395/files/diagnostic_reading_assessment.pdf
    • https://cdn.shopify.com/s/files/1/0431/4352/8609/files/doxebi.pdf
    • https://cdn.shopify.com/s/files/1/0427/4972/2790/files/38830983131.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e49.bin
b49ec28b00013db1f031778adddf6fa0a75240b4eb7be523c8abd0647f438e6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E49 5876 bytes
font_01_sfnt_off00007164.bin
268a587550afc70d3f816ec641467064e1b0d6180036a1a7b90684a8ee36f638		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7164 10856 bytes
font_02_sfnt_off000095bf.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95BF 4324 bytes

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