Malicious PDF — malware analysis report

Static analysis result for SHA-256 383e0bedd3723f00…

MALICIOUS

PDF

46.1 KB Created: 2020-08-12 10:39:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c9373d1be904456dc2054c51049b102 SHA-1: 32918a1557c323043b69a7dff2a1201e890628d6 SHA-256: 383e0bedd3723f00e4a83d90d71e7dd8ec9cdeeb46222c8e55829e877fd60e8e
120 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, with one heuristic specifically identifying it as a PDF SEO link farm. The primary malicious link, https://ttraff.cc/wb?keyword=olympians%20george%20o'connor%20pdf, is flagged as a redirector to known malicious infrastructure. This suggests the document is designed to drive traffic to malicious sites, potentially for phishing or malware distribution.

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.cc/wb?keyword=olympians%20george%20o
    • http://files.voetlichtpedicure.nl/uploads/1/3/2/6/132681694/vumapob-nakelazuwepolaj.pdf
    • http://duluvowef.michelleswafford.com/uploads/1/3/0/8/130814328/zabowuso.pdf
    • http://files.motivatedqueen.com/uploads/1/3/0/9/130969634/2377994.pdf
    • http://files.marriedbythebeard.com/uploads/1/3/0/8/130813417/63a0f9d39.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/9970957232.pdf
    • https://cdn.shopify.com/s/files/1/0430/4027/6642/files/lumebiwevodoj.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/xodikiboditidasufulelikux.pdf
    • https://cdn.shopify.com/s/files/1/0437/7791/7090/files/kufofa.pdf
    • https://cdn.shopify.com/s/files/1/0428/5631/7091/files/call_me_ishmael_tonight.pdf
    • https://cdn.shopify.com/s/files/1/0434/4666/5382/files/luxudiwaxikatonezelik.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/serananovuja.pdf
    • https://cdn.shopify.com/s/files/1/0449/4403/1899/files/affairs_cloud_current_affairs_june_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/details_about_periodic_table.pdf
    • https://cdn.shopify.com/s/files/1/0431/8950/2110/files/21288778169.pdf
    • https://cdn.shopify.com/s/files/1/0431/2157/4044/files/dogabenunofikurusex.pdf
    • https://cdn.shopify.com/s/files/1/0433/2496/5019/files/jawokokara.pdf
    • https://cdn.shopify.com/s/files/1/0431/6980/8548/files/the_last_star_5th_wave.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_off00007486.bin
13c28f901818c902590617440ef890a7c188dc40116243d7909cebeb9e1b3f2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7486 5640 bytes
font_01_sfnt_off0000879c.bin
b34b5b6b98f8e1fa2e66953cf0bac0caf8dfeca4f283241bcddd8565986f71c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x879C 10504 bytes

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