Malicious PDF — malware analysis report

Static analysis result for SHA-256 457b7a9fc17df157…

MALICIOUS

PDF

39.8 KB Created: 2020-08-24 17:22:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 809576416467242bac049577c7ccddf5 SHA-1: d26cc532f0d14e6cc36a9be09c789533ac6d3ab5 SHA-256: 457b7a9fc17df1576cbe75972f5e4e81bc7c8bd4acf65782bcb308b99eebc987
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with 26 identified as part of a link farm. One of these links, 'https://ttraff.com/pify?keyword=video+twitter+tanpa+app', is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other Shopify links, suggesting a lure to external content. The primary attack vector appears to be enticing the user to click on malicious links within the document.

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=video+twitter+tanpa+app
    • http://zuraduxi.photographybycarrie.co.uk/uploads/1/3/1/0/131070786/jomazoxurune.pdf
    • http://files.civlirightsreenactor.com/uploads/1/3/0/7/130740536/sazur.pdf
    • https://cdn.shopify.com/s/files/1/0434/0331/3308/files/answered_prayers_truman_capote.pdf
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/brandi_love_porn_pics.pdf
    • https://cdn.shopify.com/s/files/1/0438/5089/1424/files/68165650618.pdf
    • https://cdn.shopify.com/s/files/1/0431/6305/8333/files/courtroom_sciences_court_reporting.pdf
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/29364281633.pdf
    • https://cdn.shopify.com/s/files/1/0464/6046/9400/files/63631671586.pdf
    • https://cdn.shopify.com/s/files/1/0434/7042/2180/files/nelep.pdf
    • https://cdn.shopify.com/s/files/1/0434/4925/4050/files/masih_ft_arash_ap_goli.pdf
    • https://cdn.shopify.com/s/files/1/0433/3086/3259/files/bunogiluzivevenesedek.pdf
    • https://cdn.shopify.com/s/files/1/0434/5298/9605/files/mipegutil.pdf
    • https://cdn.shopify.com/s/files/1/0433/1061/2644/files/kobakaguwibon.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_off00005eb2.bin
e43f1ea5a3a9ae43718b67a9564ea99b12c785abc077d4ba98c27daaa22b5673		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB2 4800 bytes
font_01_sfnt_off00006f22.bin
6b837f9d3118e4daf1b506c52a62e12db5f2fae88d40634a4287efd6e1571c65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F22 10384 bytes

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