Malicious PDF — malware analysis report

Static analysis result for SHA-256 599d4c642306fc23…

MALICIOUS

PDF

73.5 KB Created: 2020-08-15 03:24:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0024ff3d34cb89e4c2585c4e37dd2960 SHA-1: 4aca86c5d825ad4e27b279f70afba4262ab34f90 SHA-256: 599d4c642306fc23b61c5029551a7d6b308e99a12e03b44c2bb508ce35e54447
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is designed to lead users to other PDF files hosted on various domains, including Shopify. The presence of a 'download button' heuristic and numerous external PDF links suggests a link farm or redirection scheme intended to obscure the final payload. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=mnemonic+memory+techniques+pdf
    • http://files.restaurantlegacysolutions.com/uploads/1/3/0/8/130873872/dirigatorodifafod.pdf
    • http://mewadig.dawnsgoddessdiaries.com/uploads/1/3/0/8/130814328/zakimoneriwiwunogite.pdf
    • http://files.pennlawlambda.com/uploads/1/3/0/9/130969115/jawapax.pdf
    • http://banarata.turniptheflavor.com/uploads/1/3/1/6/131606758/pobol.pdf
    • http://lukazezul.jennysparrowworks.com/uploads/1/3/0/7/130775519/177a00.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xugifewelogukepebokiz.pdf
    • https://cdn.shopify.com/s/files/1/0440/6879/8614/files/manuxusupos.pdf
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/guwopumefelabulasivavazi.pdf
    • https://cdn.shopify.com/s/files/1/0434/3804/7384/files/fesiwopesiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/wunegewugukuza.pdf
    • https://cdn.shopify.com/s/files/1/0441/3059/9064/files/principles_of_andragogy.pdf
    • https://cdn.shopify.com/s/files/1/0429/5245/8396/files/nonparametric_statistical_inference_fourth_edition.pdf
    • https://cdn.shopify.com/s/files/1/0440/9799/4904/files/coffee_bean_and_tea_leaf_menu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17418425376.pdf
    • https://cdn.shopify.com/s/files/1/0431/0191/3244/files/72728135291.pdf
    • https://cdn.shopify.com/s/files/1/0437/8837/0072/files/marshawn_lynch_net_worth_2016.pdf
    • https://cdn.shopify.com/s/files/1/0437/3997/1738/files/dynamic_stretching_and_kicking.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b5f5.bin
9da0a861ebe131ca2cca9ec2d75729548be5fc094516dabc4ccd13dfc4659ff4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB5F5 5268 bytes
font_01_sfnt_off0000c7bc.bin
b7544cdd3687b598f5f5a89159f05198c9dbc6b3c92a4916ca2a1769d99fe453		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC7BC 13500 bytes
font_02_sfnt_off0000f4f3.bin
184efd0e138a9418359f6897f9ac56b5cd93cafbd57abf30711ac2aee7e18832		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F3 16120 bytes
font_03_sfnt_off000109db.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x109DB 4324 bytes

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