Malicious PDF — malware analysis report

Static analysis result for SHA-256 b208b7a35519ee10…

MALICIOUS

PDF

51.3 KB Created: 2020-08-25 12:23:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe288e97d65147b23439e812c1b81f01 SHA-1: ff185593a014a7e14d7261d1f7ba5783361704f3 SHA-256: b208b7a35519ee10aa8efa6d2ee343a2d649e44dc46aa1a0737fbf7897fe4da7
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many of which point to Shopify domains. The document body, though heavily obfuscated, contains the same redirector URL. This suggests the primary purpose is to lure users through a seemingly benign document to a malicious redirector.

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.ru/pify?keyword=real+madrid+fifa+20+career+mode+guide
    • http://files.warriortribes.com/uploads/1/3/2/8/132815767/0b04f.pdf
    • http://laligo.ceremoniesbychristine.com/uploads/1/3/1/3/131383434/4763176.pdf
    • http://files.prettybauble.com/uploads/1/3/0/7/130738993/lusup_dawez_sowubobodo_zonulaxoduniti.pdf
    • http://lelat.thehonestytree.com/uploads/1/3/1/6/131637308/476257.pdf
    • https://cdn.shopify.com/s/files/1/0430/5967/5290/files/83204399193.pdf
    • https://cdn.shopify.com/s/files/1/0428/7735/4143/files/68379771707.pdf
    • https://cdn.shopify.com/s/files/1/0433/9243/4326/files/16288221902.pdf
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/97601246886.pdf
    • https://cdn.shopify.com/s/files/1/0429/2562/1404/files/open_the_tasmac_video_song.pdf
    • https://cdn.shopify.com/s/files/1/0432/0644/3176/files/23576166862.pdf
    • https://cdn.shopify.com/s/files/1/0430/6750/6849/files/xujeg.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_off00008b2e.bin
50a09d769bf5a845b418227fc0319be3baec9f360c91e206c5e63b7e93f8e175		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B2E 5444 bytes
font_01_sfnt_off00009da0.bin
e1537a17dc6f61e2ed59ff817478c506d05d63da8dce4f1ba5524e4d022d3361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DA0 10232 bytes

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