Malicious PDF — malware analysis report

Static analysis result for SHA-256 f58813aa1878dcc9…

MALICIOUS

PDF

48.9 KB Created: 2020-08-10 23:30:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9a524c943d27a495cb3f7749a0a34351 SHA-1: fcc7d1044a69f4deabf8789899cc4a08cf0e216d SHA-256: f58813aa1878dcc9d7cde7990271ea25d26ced68b455d67b2962af760ff8ea7f
150 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 pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious redirector URL and several benign-looking Shopify URLs, suggesting a lure to a malicious site disguised as a document. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=advanced+auditing+notes+for+mcom+part+2+pdf
    • http://files.jpmartist.com/uploads/1/3/1/4/131453432/xufubejupodi.pdf
    • http://sodepefu.agricolacuvelier.com/uploads/1/3/0/7/130739777/d65cc.pdf
    • http://files.bnorthphotography.com/uploads/1/3/0/8/130814676/1107529.pdf
    • https://cdn.shopify.com/s/files/1/0434/8434/8569/files/1326039562.pdf
    • https://cdn.shopify.com/s/files/1/0431/3179/7668/files/feliga.pdf
    • https://cdn.shopify.com/s/files/1/0428/7276/6631/files/17138607319.pdf
    • https://cdn.shopify.com/s/files/1/0437/8427/4069/files/12634843391.pdf
    • https://cdn.shopify.com/s/files/1/0434/2572/6625/files/98948256673.pdf
    • https://cdn.shopify.com/s/files/1/0433/7329/7822/files/kiriwelerawirupibetuloti.pdf
    • https://cdn.shopify.com/s/files/1/0430/1747/0101/files/nuwave_oven_recipe_book.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/botany_for_degree_students_algae_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/2021/2645/files/raxaxarikaretinuvubajuzed.pdf
    • https://cdn.shopify.com/s/files/1/0434/3264/0679/files/45222129123.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000056ac.bin
9da18e75101ad0497192812b2a66d42c7aa78324369bb5b0d1f8ee280512ad10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56AC 5624 bytes
font_01_sfnt_off000069bb.bin
cace3ddbc359e9607b973d91a60f3d536e33f52f3ea16314aa6afac576686f5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69BB 2088 bytes
font_02_sfnt_off000073ba.bin
d97e055e11de589539a249dfdf9c15aca1e9caf4700104d1763a3a5d87d8f7f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73BA 2320 bytes
font_03_sfnt_off00007e0b.bin
546c313cb6266d43331c8feb6182671a9a0a470723440ece3431037affb5bce1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0B 9876 bytes
font_04_sfnt_off0000a022.bin
207faf14306426b668b87aba0c9d447b8ba40b67f0f7b18660ffa0d3c8132265		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA022 16224 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.