Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc1fefab95301d01…

MALICIOUS

PDF

42.1 KB Created: 2020-08-24 18:48:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dccb08d09c5a82b78789df12a56de6da SHA-1: e3db7b56d5956a3b903d10f12e048f5054f61ab6 SHA-256: bc1fefab95301d012e82587a7a46b520660b759c65437b0a7ab9ca24d72d6fab
128 Risk Score

Malware Insights

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

The PDF contains a lure related to an eviction notice, paired with a critical heuristic firing for a malicious redirector link. This link, 'https://ttraff.com/pify?keyword=30+day+eviction+notice+template+illinois', is likely intended to lead the user to a malicious site. The document also exhibits a PDF link farm heuristic, embedding numerous external links, many hosted on cdn.shopify.com, which are likely part of a SEO poisoning or traffic generation scheme.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=30+day+eviction+notice+template+illinois
    • http://files.quickfitkit.com/uploads/1/3/0/8/130874683/mabiwugijixejeze.pdf
    • http://files.normawalton.ca/uploads/1/3/0/9/130969987/3292307.pdf
    • https://cdn.shopify.com/s/files/1/0431/2553/8980/files/hereditary_angioedema_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0433/3466/4346/files/broadcasting_act_1996.pdf
    • https://cdn.shopify.com/s/files/1/0432/1856/7335/files/45082456592.pdf
    • https://cdn.shopify.com/s/files/1/0430/8933/0330/files/pitisuv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23631451812.pdf
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/31725161154.pdf
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/marizedemozevuvamotenom.pdf
    • https://cdn.shopify.com/s/files/1/0440/3652/2149/files/ninedab.pdf
    • https://cdn.shopify.com/s/files/1/0440/1473/1429/files/naruto_online_hack_ingots.pdf
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/download_foxit_reader_for_windows_xp.pdf
    • https://cdn.shopify.com/s/files/1/0429/4567/5420/files/64114075221.pdf
    • https://cdn.shopify.com/s/files/1/0435/1698/5503/files/96089848582.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_off00006623.bin
63e60f7105630922c80e96ec37f73dd1aa8291e686794e20302f1fa1f0d2919a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6623 5496 bytes
font_01_sfnt_off000078c4.bin
7477816c1b1e975be3a71f8e4673f11566c12f3caf9ca804930bb203be2bc651		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78C4 10168 bytes

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