Malicious PDF — malware analysis report

Static analysis result for SHA-256 89d7b71f63bd54cb…

MALICIOUS

PDF

45.4 KB Created: 2020-08-10 17:09:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8833450e1307c3fa500b020995a868f9 SHA-1: 4c6974d256686348f8ae0fa6301c756bd60438fb SHA-256: 89d7b71f63bd54cb0a7496d7bf8881783c82c3bfb6ccc488bcb63da5a2b8a5d4
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to manipulate search engine results, ultimately redirecting to malicious infrastructure at ttraff.com. The document body, though heavily obfuscated, contains the search query 'dreams from my father pdf free download' and the malicious redirector URL, indicating a lure to download potentially harmful content. The presence of numerous links to Shopify-hosted PDFs suggests a large-scale SEO poisoning campaign.

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=dreams+from+my+father+pdf+free+download
    • http://files.rsvpvolunteercaregivers.org/uploads/1/3/2/6/132681824/navate.pdf
    • http://files.dancinglegacy.us/uploads/1/3/2/3/132302939/efd8e3de202.pdf
    • http://tipexare.kleinsentertainment.com/uploads/1/3/0/8/130874493/muvodigoxabebot.pdf
    • http://files.oakfurnitureyorkshire.com/uploads/1/3/0/8/130814353/8728723.pdf
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/xusikufowogozojuzaxupala.pdf
    • https://cdn.shopify.com/s/files/1/0431/8344/0036/files/midrash_aggadah.pdf
    • https://cdn.shopify.com/s/files/1/0437/1821/3797/files/24694180536.pdf
    • https://cdn.shopify.com/s/files/1/0428/8305/5782/files/52364884845.pdf
    • https://cdn.shopify.com/s/files/1/0434/0544/3233/files/31512953454.pdf
    • https://cdn.shopify.com/s/files/1/0434/7723/7913/files/7143676299.pdf
    • https://cdn.shopify.com/s/files/1/0440/1935/1710/files/nakafozemik.pdf
    • https://cdn.shopify.com/s/files/1/0440/5015/3622/files/avadh_news_amreli.pdf
    • https://cdn.shopify.com/s/files/1/0431/1914/9216/files/48245851852.pdf
    • https://cdn.shopify.com/s/files/1/0434/5076/1377/files/napukewutenexalege.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_off000073c3.bin
f04fc957c82440139c28b49902ccfa70cd1db80aecb1f2b48aceb8d0ec7c9bc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73C3 5472 bytes
font_01_sfnt_off00008650.bin
3896038ceadc0d666d1f74ab6954fc8882aec330efe28da10866b627a7caab88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8650 10004 bytes

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