Malicious PDF — malware analysis report

Static analysis result for SHA-256 d05123ea6f4ed890…

MALICIOUS

PDF

54.6 KB Created: 2020-08-22 02:47:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e28d7af0664286f217722ad3ffc3ade SHA-1: ff67438bd43701028334809d3575bcf25a9ce10d SHA-256: d05123ea6f4ed8906e90a04b92288353aec4a82968d9ec398481eb7ea6a5dde4
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=barreras+arancelarias+y+no+arancelarias+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to obscure the malicious destination. 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.cc/pify?keyword=barreras+arancelarias+y+no+arancelarias+pdf
    • http://files.jamesjewelbox.net/uploads/1/3/1/4/131437119/juzebupibenoj-pejore-kugazeb-xojowusit.pdf
    • http://files.vkdistributors.co.za/uploads/1/3/1/6/131637606/vuxifedozagoso.pdf
    • http://files.faithmusicacademy.com/uploads/1/3/0/8/130814717/rusanugajifewol_zuvowexufarazo.pdf
    • http://files.mrwise.org/uploads/1/3/1/3/131383613/lolenasumixeg.pdf
    • https://cdn.shopify.com/s/files/1/0461/9907/9065/files/graphic_background_images.pdf
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/pace_4111n_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99914628395.pdf
    • https://cdn.shopify.com/s/files/1/0428/7853/3799/files/xoleponorovuvixofisejamuj.pdf
    • https://cdn.shopify.com/s/files/1/0439/0594/1672/files/sogezatom.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/27854306626.pdf
    • https://cdn.shopify.com/s/files/1/0439/2353/8088/files/bionomik_nyamuk_anopheles.pdf
    • https://cdn.shopify.com/s/files/1/0456/4464/4519/files/centered_log_ratio_transformation.pdf
    • https://cdn.shopify.com/s/files/1/0460/6001/1675/files/candy_camera_for_iphone.pdf
    • https://cdn.shopify.com/s/files/1/0447/0921/6409/files/katamukutowiparub.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_off00009471.bin
e48e24edb1eb0b56dc0e4f6935de41170d6027696706ff402b879e23cc838e6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9471 5300 bytes
font_01_sfnt_off0000a684.bin
128bf78e009fe0908911f86f4ea806418f6ab517047e6d3906e6969ca2570673		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA684 11604 bytes

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