Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fd98fc025012267…

MALICIOUS

PDF

41.8 KB Created: 2020-08-07 20:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dd0f06b7348448a94d3b5dbca501906e SHA-1: 6513f09d01879179ae961cddf0c1f15557210ba8 SHA-256: 3fd98fc025012267172c1cfbff5227b792ac93bcf6c7d97f64cd697fe52d3ce4
140 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of these links, 'https://ttraff.ru/pify?keyword=burial+rites+online+pdf', is identified as a malicious redirector. The document body also contains text related to 'Burial rites online pdf', suggesting a lure to trick users into accessing potentially malicious content. The presence of numerous external links and a malicious redirector indicates an attempt to lead the user to a harmful destination.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=burial+rites+online+pdf
    • http://files.neetgardner.com/uploads/1/3/1/6/131607712/b7fad659.pdf
    • http://files.architectureindetail.com/uploads/1/3/1/0/131070581/pabeza.pdf
    • http://files.massagerevelstokeayla.com/uploads/1/3/1/4/131483097/tipepemusifip_kotodogenagapon.pdf
    • https://cdn.shopify.com/s/files/1/0434/9421/1750/files/lupe_fiasco_daydreamin.pdf
    • https://cdn.shopify.com/s/files/1/0436/6453/9798/files/53279490149.pdf
    • https://cdn.shopify.com/s/files/1/0432/7990/9028/files/40581923694.pdf
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/93785439772.pdf
    • https://cdn.shopify.com/s/files/1/0432/6090/3582/files/15313995263.pdf
    • https://cdn.shopify.com/s/files/1/0429/6241/9863/files/jumijo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6404/9318/files/30734811358.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemulubu.pdf
    • https://cdn.shopify.com/s/files/1/0436/0041/2835/files/autonomous_maintenance_steps.pdf
    • https://cdn.shopify.com/s/files/1/0430/9732/5732/files/rodumupifopuxutatukib.pdf
    • https://cdn.shopify.com/s/files/1/0434/9735/7472/files/xodavomotexafolisepud.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_off00006574.bin
1d2fe0655ab89fdefb60fec46fc1b1cfdd6737dcdb1b02b30c0ab3abeaee28d7
pdf-font-stream PDF embedded font (sfnt) at offset 0x6574 5084 bytes
font_01_sfnt_off000076ce.bin
a1abdd61e986f049ef863f9856a081233e39dbea7596b707b3238f5cfe66e044
pdf-font-stream PDF embedded font (sfnt) at offset 0x76CE 10536 bytes