Malicious PDF — malware analysis report

Static analysis result for SHA-256 81746a974447315f…

MALICIOUS

PDF

47.2 KB Created: 2020-08-14 00:16:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90f3f52d4442de9856d33cf4dfa9b9a1 SHA-1: 644f1f009e6a97d0a4225c983a7a542e5cf3bc79 SHA-256: 81746a974447315f6d19e71bb5c80e06aada2a01101cdbc39addd3ca48cd8255
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. This URL is embedded within the document body, disguised as a search query for a 'mistral thermo cooker instruction manual'. The file also exhibits characteristics of a link farm, with numerous embedded links to external PDFs, many hosted on Shopify. The primary intent appears to be redirecting users to malicious infrastructure through a deceptive lure.

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/wb?keyword=mistral%20thermo%20cooker%20instruction%20manual
    • http://files.antoinetteducheinlagrone.com/uploads/1/3/1/3/131383255/3fc00292d.pdf
    • http://files.platonicadventures.com/uploads/1/3/0/8/130874655/laxolo_mobiridixeb_raroperas.pdf
    • http://ginexemu.aniasadourian.com/uploads/1/3/1/1/131164239/8338913.pdf
    • http://nigop.manhattangrace.org/uploads/1/3/0/8/130873804/91ebf93acd2.pdf
    • https://cdn.shopify.com/s/files/1/0431/2865/1938/files/16431048607.pdf
    • https://cdn.shopify.com/s/files/1/0438/1756/6368/files/nomelakopa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/22700630349.pdf
    • https://cdn.shopify.com/s/files/1/0434/7471/4790/files/ap_b._ed_psychology_book_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zumimulapowekulusevenire.pdf
    • https://cdn.shopify.com/s/files/1/0433/4456/0281/files/lezonofu.pdf
    • https://cdn.shopify.com/s/files/1/0436/4448/5790/files/bncc_ciencias_da_natureza.pdf
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/xafamorelozizesorumonu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3765/5191/files/napozizapi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7492/0347/files/wipawugawubesizet.pdf
    • https://cdn.shopify.com/s/files/1/0432/0146/2436/files/tuzobumetu.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_off00007b3d.bin
48ae039acdc122ad8e0701650d07c287832ad2b8405f1c413d52c5669c88fd92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3D 5108 bytes
font_01_sfnt_off00008c76.bin
0678b7a8336c9600aafa5410d8d189f36bde25f8c4d859748cf6ec7b5e1f8e5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C76 10260 bytes

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