Malicious PDF — malware analysis report

Static analysis result for SHA-256 9167739f54ad1fff…

MALICIOUS

PDF

43.1 KB Created: 2020-08-30 21:11:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b2704a8d5953695d783d6a3d0b7bd83 SHA-1: d1c494807de80208ab94be0e6bbfef2e3a5b37c7 SHA-256: 9167739f54ad1fff2bc383e87ad4bf8ddacac55c7fffde5c1e58fafb9447a713
120 Risk Score

Malware Insights

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

This PDF file contains a significant number of embedded links, many pointing to external PDF files hosted on Shopify. One of these links, https://ttraff.com/wix?keyword=warframe+moonlight+jadeleaf, is identified as a malicious redirector. The large number of external links suggests an attempt at SEO manipulation or a link farm to distribute malicious content. 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.com/wix?keyword=warframe+moonlight+jadeleaf
    • https://cdn.shopify.com/s/files/1/0429/3266/6524/files/brawl_stars_apk_mod_money.pdf
    • https://cdn.shopify.com/s/files/1/0437/2345/6666/files/56167501912.pdf
    • https://cdn.shopify.com/s/files/1/0433/7513/2824/files/53823127067.pdf
    • https://cdn.shopify.com/s/files/1/0428/5480/9759/files/bijoxemo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4150/4927/files/gogewoxifagenujasajezeso.pdf
    • https://cdn.shopify.com/s/files/1/0440/7253/4166/files/22051866066.pdf
    • https://cdn.shopify.com/s/files/1/0435/1619/9066/files/92944712319.pdf
    • https://cdn.shopify.com/s/files/1/0449/6103/8495/files/deconstructive_architecture.pdf
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/zaytoven_drum_kit.pdf
    • https://cdn.shopify.com/s/files/1/0433/7080/7461/files/dehydration_synthesis_and_hydrolysis_vocabulary_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0436/1378/2178/files/20028419229.pdf
    • https://cdn.shopify.com/s/files/1/0436/1850/0765/files/xezep.pdf
    • https://cdn.shopify.com/s/files/1/0433/0281/3849/files/fubasoropifofujemuda.pdf
    • https://cdn.shopify.com/s/files/1/0440/1872/9125/files/adrenal_fatigue_syndrome_dr_lam.pdf
    • https://cdn.shopify.com/s/files/1/0437/2388/2664/files/where_to_buy_beeswax_sheets_wholesale.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_off00005d14.bin
788eed4728b9600ef9f632e965bc368276d4793637b8e1edde6c24499dea0ea2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D14 5020 bytes
font_01_sfnt_off00006e03.bin
14c6cc3dbadcc6c7cef545bdf8f251520cfd8aca08a93366ac7e426a3a726c50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E03 10352 bytes
font_02_sfnt_off00009172.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9172 4324 bytes

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