Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a2ea52e4d171542…

MALICIOUS

PDF

42.4 KB Created: 2020-08-19 19:26:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f946f1848c8ad4a5d01e23a1934d106 SHA-1: 935f40c4487c202d3fa2a66a63280f4937b5ba20 SHA-256: 8a2ea52e4d171542b7cc0c6a00d0a639c7b9ba64431167826a8ea873e3e59027
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com, which is used in a lure for 'Canon mf3010 printer software'. The document body also contains this URL. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded links to external PDFs, suggesting a broader distribution or SEO poisoning tactic. The primary malicious IOC is the redirector URL.

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+mf3010+printer+software
    • http://files.whartonsgarden.com/uploads/1/3/0/9/130969291/liroruzora_sofor.pdf
    • http://kutewixe.mimiartworks.com/uploads/1/3/1/4/131406749/6722968.pdf
    • http://files.drawingonmusic.com/uploads/1/3/1/0/131070044/mupesibudunug-womexezaluzo.pdf
    • http://files.drawingonmusic.com/uploads/1/3/1/0/13107004
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/sadojinixapuzexamurodobo.pdf
    • https://cdn.shopify.com/s/files/1/0437/9007/4005/files/resto_druid_best_in_slot.pdf
    • https://cdn.shopify.com/s/files/1/0434/4899/1910/files/byzantine_art.pdf
    • https://cdn.shopify.com/s/files/1/0434/5036/8152/files/30496560642.pdf
    • https://cdn.shopify.com/s/files/1/0435/3340/2266/files/funny_dirty_riddles_clean_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/6366/5055/files/37044966018.pdf
    • https://cdn.shopify.com/s/files/1/0435/3720/3364/files/spartan_mountain_master_chassis_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/1895/2612/files/3475599540.pdf
    • https://cdn.shopify.com/s/files/1/0428/2492/5347/files/savuf.pdf
    • https://cdn.shopify.com/s/files/1/0435/8812/4830/files/36070831738.pdf
    • https://cdn.shopify.com/s/files/1/0434/7419/0498/files/best_area_calculator_app_android.pdf
    • https://cdn.shopify.com/s/files/1/0430/9578/5629/files/makezikanusevuxafawife.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_off0000671b.bin
1b6411477337334fa2bae0d2efb3c7ee54fc6b002a20a1f615422204819e39ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x671B 5368 bytes
font_01_sfnt_off0000795d.bin
17ff22b743dabe19b5e7e839c39bceab54e2fd1c9cb6df2873da126f91aae743		 pdf-font-stream PDF embedded font (sfnt) at offset 0x795D 10304 bytes

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