Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4296bbcc51a5c0b…

MALICIOUS

PDF

44.9 KB Created: 2020-09-01 14:29:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51d901e61dcc6f78a37f173e3c78f41d SHA-1: 3570dfeeb4706a777a63cf05689845de33291c41 SHA-256: d4296bbcc51a5c0bc86a78b9221f4c3609a6da5000f1ac6fa69062938ce13d96
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, a common technique for SEO poisoning or redirecting users to malicious sites. One critical heuristic firing identified a link to a known malicious redirector at 'https://ttraff.me/wix?keyword=jason+x+imdb+parents+guide'. The document body, though heavily obfuscated, contains this URL and other links to Shopify-hosted PDFs, suggesting a link farm or redirection strategy. The primary intent appears to be directing users to malicious infrastructure via the identified 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.me/wix?keyword=jason+x+imdb+parents+guide
    • https://cdn.shopify.com/s/files/1/0435/9811/9075/files/89467946579.pdf
    • https://cdn.shopify.com/s/files/1/0435/4962/2431/files/77624025916.pdf
    • https://cdn.shopify.com/s/files/1/0433/5442/3464/files/way_of_the_open_hand_5e.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/7730738641.pdf
    • https://cdn.shopify.com/s/files/1/0431/5332/6241/files/45860156717.pdf
    • https://static.usrfiles.com/ugd/d7ba0f_973ef06e2d8e43fbbc43e3903bf612b0.pdf
    • https://static.usrfiles.com/ugd/b7ab08_d0ca427c7c3d45cbb12dc8facf406fa7.pdf
    • https://static.usrfiles.com/ugd/b8c837_6ec1a1d830b44764a98a65e00688bf9c.pdf
    • https://static.usrfiles.com/ugd/7198c1_270ff7c4eea84fadb69e41f04dbea037.pdf
    • https://cdn.shopify.com/s/files/1/0438/7287/8747/files/jimajikipalufo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9242/7430/files/newoj.pdf
    • https://cdn.shopify.com/s/files/1/0428/4334/0956/files/pudobepovobulodu.pdf
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/kavukuliwurolatika.pdf
    • https://cdn.shopify.com/s/files/1/0429/5327/7589/files/above_the_line_advertising_examples.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_off00006341.bin
8a9d70621c61e56c2c8b654b7452ca7d07cf7df891f701a970227be965a21961		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6341 5328 bytes
font_01_sfnt_off0000753a.bin
f9dad6aad33fec1de6467e556d559e718ff13fb9a1c2f03ba54429f27f8615b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x753A 10524 bytes
font_02_sfnt_off0000991b.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x991B 4324 bytes

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