Malicious PDF — malware analysis report

Static analysis result for SHA-256 4201f7d9522a8eb3…

MALICIOUS

PDF

53.1 KB Created: 2020-08-17 13:22:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68a2537004fb0e3ad68aef6d9a70e22e SHA-1: 670f638b6f20a435f96a3ac2af03827e68460a5f SHA-256: 4201f7d9522a8eb31f1b4d26a7ac674174445304503ea545d943fe81f648baba
120 Risk Score

Malware Insights

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

The PDF contains a mass external PDF link farm, with many links pointing to Shopify domains, but the primary heuristic indicates a malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=chiranjeevi+movie+songs', suggesting a lure related to movie songs to mask the malicious redirector. 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=chiranjeevi+movie+songs
    • http://xigimul.tigertogre.com/uploads/1/3/0/7/130775934/4c0a303.pdf
    • http://files.rockyemidiopaterra.com/uploads/1/3/2/7/132712315/zejukag.pdf
    • https://cdn.shopify.com/s/files/1/0438/6645/6224/files/zupom.pdf
    • https://cdn.shopify.com/s/files/1/0430/2068/1369/files/16903514876.pdf
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/minecraft_pe_nether_reactor_core.pdf
    • https://cdn.shopify.com/s/files/1/0427/9504/0924/files/61229490558.pdf
    • https://cdn.shopify.com/s/files/1/0433/4842/6902/files/88661957079.pdf
    • https://cdn.shopify.com/s/files/1/0432/8616/7702/files/jibudilagigopuru.pdf
    • https://cdn.shopify.com/s/files/1/0432/6667/0745/files/arithmetic_series_problems_and_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0443/8438/7238/files/new_headway_beginner_test_booklet.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_off00008a81.bin
d11007465899fd3ba266fb9224ed27d333790e967053f48cfdf10bccb093587b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A81 5108 bytes
font_01_sfnt_off00009bbe.bin
b9c58e778fb098813adc20e44c92a72dddcd272b59f21fdcbd2b44f0eec89614
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BBE 14152 bytes