Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ac6b0bf090656c3…

MALICIOUS

PDF

43.6 KB Created: 2020-08-01 18:09:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c8e50fd0a44c0fb79663db3a22359d5 SHA-1: 710d0a03e5cfda55b6e96ab783672895ffbdf76a SHA-256: 4ac6b0bf090656c3164b7ac985fb0b7f196c77c9e1e1174c86ed3dc12fc79ef9
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, many hosted on Shopify, designed to appear as legitimate product listings. One of these links, https://ttraff.com/pify?keyword=canon+poweshot+s2+is, is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious infrastructure through a deceptive link farm. No scripts were extracted from this sample.

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=canon+poweshot+s2+is
    • http://files.discoverygame.org/uploads/1/3/2/6/132695460/gudufalu_megonebo_zakupovijux.pdf
    • http://files.moviemusicmania.com/uploads/1/3/1/3/131382607/7653975.pdf
    • http://files.olghparish.org/uploads/1/3/0/8/130874676/ae458ef5fb71e79.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wopesutokuvikoku.pdf
    • https://cdn.shopify.com/s/files/1/0430/3526/3130/files/movivurikuwobusokaxirijuw.pdf
    • https://cdn.shopify.com/s/files/1/0437/5520/8858/files/63490661001.pdf
    • https://cdn.shopify.com/s/files/1/0430/7845/1351/files/vimizexowumi.pdf
    • https://cdn.shopify.com/s/files/1/0434/1848/4888/files/zadevaja.pdf
    • https://cdn.shopify.com/s/files/1/0431/8278/4676/files/rijazaja.pdf
    • https://cdn.shopify.com/s/files/1/0433/7175/7718/files/pixibafovebupubi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7155/3189/files/13799581496.pdf
    • https://cdn.shopify.com/s/files/1/0430/3159/3113/files/12581761213.pdf
    • https://cdn.shopify.com/s/files/1/0430/3755/6889/files/bidupemosazofetisabifokig.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12729031526.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_off00006f68.bin
481da40af2fa83e4424a6d02b5b26d82d04f6b7d445452e6cfa372bf9760beb1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F68 4908 bytes
font_01_sfnt_off00008027.bin
d62d1e65f2862f4859e1d93449c2ebd8d8773ebb6b1fa8710c99347c189507ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8027 9948 bytes

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