Malicious PDF — malware analysis report

Static analysis result for SHA-256 bebd7f1726614f8a…

MALICIOUS

PDF

43.2 KB Created: 2020-07-30 17:19:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79e65d844f4cb81d28bb4dbacd94e296 SHA-1: 204b9cf9bc42a97b65844707acae9dab84f96752 SHA-256: bebd7f1726614f8afd20412be517ae1516decbad94014613d226bd7c9967c24c
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for redirecting users to malicious websites. One critical heuristic firing indicates a direct link to known malicious redirector infrastructure, specifically `https://ttraff.com/pify?keyword=causes+of+brain+cancer+pdf`. This suggests the document is designed to exploit user curiosity or trust by presenting a seemingly relevant topic to encourage clicks on malicious URLs.

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=causes+of+brain+cancer+pdf
    • http://files.chrisbirdsnthings.com/uploads/1/3/0/7/130775304/7214409.pdf
    • http://files.karmicguidance.com/uploads/1/3/1/0/131069879/9549fc499d55a4b.pdf
    • http://files.justaboutpetswc.ca/uploads/1/3/0/7/130775690/jobaxarivurerigusan.pdf
    • http://files.theshiatsuroom.co.uk/uploads/1/3/1/1/131164114/c3452f73.pdf
    • https://cdn.shopify.com/s/files/1/0430/7409/3217/files/megova.pdf
    • https://cdn.shopify.com/s/files/1/0433/3446/7752/files/23647673453.pdf
    • https://cdn.shopify.com/s/files/1/0429/0409/2828/files/junapuziwozis.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mojarugalemidim.pdf
    • https://cdn.shopify.com/s/files/1/0430/3850/7169/files/95227401388.pdf
    • https://cdn.shopify.com/s/files/1/0430/6580/2905/files/rekoxinikafezewit.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/nowaxugilemusapanokag.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16494210232.pdf
    • https://cdn.shopify.com/s/files/1/0429/6821/9799/files/liwatidub.pdf
    • https://cdn.shopify.com/s/files/1/0431/8907/6117/files/ponanogupixuda.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/
    • https://cdn.shopify.com/s/files/1/0429/0409/2828/files/junapuziwo

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c4a.bin
c283a6840cf5592adae310c5149987f377e3b64fa57b664896ecbabb3760fab2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4A 5084 bytes
font_01_sfnt_off00007d93.bin
5784c5b5285a1b6c252a7918344841fbf22bf1652d8e3682677cc659e388ad2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D93 10076 bytes

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