Malicious PDF — malware analysis report

Static analysis result for SHA-256 494b15adcb92531d…

MALICIOUS

PDF

44.8 KB Created: 2020-08-26 01:30:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b011cf14e1aa4e92b727c9cd7a1d2e2 SHA-1: 046c9caecd97bbd3d41ed6c752eba7c8307e613a SHA-256: 494b15adcb92531d968b219e0171998fe4116f775461724aaad13a7fd490ff25
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 SEO spam and phishing. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=dental+articulators+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or credential harvesting. The presence of many Shopify links suggests an attempt to blend in with legitimate content.

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=dental+articulators+pdf
    • http://jelob.effinghamelementary.org/uploads/1/3/2/6/132695839/mewuwokutiza.pdf
    • http://files.sammyreid.com/uploads/1/3/1/3/131384424/bf925aa8.pdf
    • http://dorexepax.barrons-impact.com/uploads/1/3/2/6/132681393/990d28.pdf
    • https://cdn.shopify.com/s/files/1/0438/3208/2594/files/tavimutajurajuwarifawe.pdf
    • https://cdn.shopify.com/s/files/1/0437/1188/9562/files/lactinex_chewable_tablets_drug_information.pdf
    • https://cdn.shopify.com/s/files/1/0438/7084/7131/files/how_to_speak_english_fluently_in_30_days.pdf
    • https://cdn.shopify.com/s/files/1/0440/3625/9990/files/mario_kart_64._wad.pdf
    • https://cdn.shopify.com/s/files/1/0433/2797/9678/files/ccnp_switch.pdf
    • https://cdn.shopify.com/s/files/1/0430/5027/0869/files/31633708517.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94393320092.pdf
    • https://cdn.shopify.com/s/files/1/0435/5863/3631/files/69613905565.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_off00007393.bin
f50eea8724b62fa057b2985e905f216aa5dc63db2cceead6d63d06edfc0fb6ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7393 5148 bytes
font_01_sfnt_off00008522.bin
338ae033b4533b1e9bd192c44c045b01f8677ae6d0d60bb6bab0ab1328c5977b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8522 9876 bytes

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