Malicious PDF — malware analysis report

Static analysis result for SHA-256 e592f6e82876e51d…

MALICIOUS

PDF

56.8 KB Created: 2020-08-19 23:09:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ba0c315ad44a43024f9f7a63c891955 SHA-1: 89461f871140f2ad4338758c880384b198ec4283 SHA-256: e592f6e82876e51d1f8cf0ba72f81f2357618805ab950c69b47b9665df860ae6
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final malicious destination. The document body contains text that appears to be SEO-related keywords, suggesting a potential SEO poisoning or link farm attack. The presence of numerous links, including the malicious redirector, indicates an attempt to lure users to potentially harmful content.

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=best+free+full+album++sites
    • http://gagabob.maconcountyveterans.org/uploads/1/3/1/4/131410685/d75a307e6b875b.pdf
    • http://kezef.christopherbmooneystudios.com/uploads/1/3/2/6/132695478/848986.pdf
    • http://files.mulemankawasakimuleusedparts.com/uploads/1/3/1/4/131437775/xosujotovonesusu.pdf
    • http://files.theuptones.com/uploads/1/3/1/3/131379099/6d923c58.pdf
    • https://cdn.shopify.com/s/files/1/0429/2172/2015/files/grey_knights_codex_8th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/3382/1347/files/arrays_in_data_structures_and_algorithms.pdf
    • https://cdn.shopify.com/s/files/1/0432/4448/6824/files/fulovijufisopotesaxavoza.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/bosch_dishwasher_installation_rebate_form.pdf
    • https://cdn.shopify.com/s/files/1/0435/9880/7202/files/fifa_the_game_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/2207/4534/files/prince_of_qin.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/22584543347.pdf
    • https://cdn.shopify.com/s/files/1/0433/5733/9803/files/electrical_engineering_ebook_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/6335/3244/files/approaches_and_methods_in_language_teaching_3rd.pdf
    • https://cdn.shopify.com/s/files/1/0432/6057/5894/files/merolexokujego.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_off0000a28b.bin
75e33d3a67ee07399cafe5050f387ad927605e260c7f5eb4a819167eea88f2d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA28B 5100 bytes
font_01_sfnt_off0000b3cc.bin
4faa106404752db35bb27e71c17904ff7c7aa31c8698de70b0fe82e140b2f487		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB3CC 10232 bytes

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