Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b7e9efed4167134…

MALICIOUS

PDF

41.2 KB Created: 2020-08-15 06:13:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 903b4655faf69447edfba86ab161f0ad SHA-1: dfa75d39286401cafe9edd9805ae8f3ef38b8d1f SHA-256: 3b7e9efed416713454b1ee2408187e2dcb860d7b8d67a36490d84270d8ebf330
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link pointing to `https://ttraff.ru/pify?keyword=husqvarna+450+x+torq+owners+manual`. This URL is known to lead to malicious infrastructure. The document body, though heavily obfuscated, contains the same lure text and the malicious URL, indicating the primary purpose is to trick users into clicking the link. No scripts were extracted, and the family is unknown due to the lack of further indicators.

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.ru/pify?keyword=husqvarna+450+x+torq+owners+manual
    • http://files.centrallyesl.com/uploads/1/3/0/9/130968960/9150962.pdf
    • http://files.paulgaucherandderochas.com/uploads/1/3/0/7/130775106/lofijaraxo-fovijatave-miralepewol.pdf
    • https://cdn.shopify.com/s/files/1/0430/0396/9689/files/gaxinugunakifuxe.pdf
    • https://cdn.shopify.com/s/files/1/0429/2434/3462/files/jimexiti.pdf
    • https://cdn.shopify.com/s/files/1/0432/9956/9832/files/9567217102.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/buxidumex.pdf
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/perelar.pdf
    • https://cdn.shopify.com/s/files/1/0434/5344/8358/files/64005535631.pdf
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/tusopidutogebowuligor.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59022585862.pdf
    • https://cdn.shopify.com/s/files/1/0435/5335/7985/files/ruxusato.pdf
    • https://cdn.shopify.com/s/files/1/0431/7357/6865/files/ludupokade.pdf
    • https://cdn.shopify.com/s/files/1/0440/4926/8886/files/29440919149.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004cc4.bin
df1f0c46b2a3b76d400754a1af35702abd0475950e9ffa79a6c4de60d2aae147		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CC4 5328 bytes
font_01_sfnt_off00005ee9.bin
d022b55b291838c712772b8447a3a2ee07f7caef25350cc1fc90779a4c66799c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE9 13640 bytes
font_02_sfnt_off000089f2.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89F2 4324 bytes

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