Malicious PDF — malware analysis report

Static analysis result for SHA-256 95db2c08e660a4e1…

MALICIOUS

PDF

48.9 KB Created: 2020-08-29 18:50:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4bafa86f196bc43d7ad6122a548b019d SHA-1: 224bc463062fcd9210f1bc2669be0e7a237d0d0b SHA-256: 95db2c08e660a4e18227f4184010e05fed3e6f20a72b390c837ed318e062323b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. It also exhibits PDF_SEO_LINK_FARM behavior by embedding a large number of external links, with the primary malicious URL being https://ttraff.cc/wix?keyword=i+am+the+pretty+thing+that+lives+in+the+house+parents+guide. The document body, though partially corrupted, contains this URL and other embedded links, suggesting a social engineering lure to drive traffic to the malicious site.

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/wix?keyword=i+am+the+pretty+thing+that+lives+in+the+house+parents+guide
    • https://cdn.shopify.com/s/files/1/0434/5351/3880/files/apache_poi_example.pdf
    • https://cdn.shopify.com/s/files/1/0434/2182/7222/files/afloat_shopping_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/0158/5562/files/believer_easy_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0437/2063/8632/files/67628211912.pdf
    • https://cdn.shopify.com/s/files/1/0438/2870/7478/files/bayesian_neural_network.pdf
    • https://cdn.shopify.com/s/files/1/0432/0755/7279/files/tipos_de_almacenamiento_en_la_nube.pdf
    • https://static.usrfiles.com/ugd/b8c837_e1973744e4844790b9d1f559f1a097b0.pdf
    • https://static.usrfiles.com/ugd/b8c837_1112bd4c0fe44668bc639dba48c50f67.pdf
    • https://static.usrfiles.com/ugd/409ca8_6a92c96b550240f68e7900dae057060b.pdf
    • https://static.usrfiles.com/ugd/599f1c_1463dda8f5474ff1b35bab2c0e109b1c.pdf
    • https://static.usrfiles.com/ugd/b8c837_09cab67634d34ef5a8f6df7b41e049b3.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_off00007338.bin
6a0b0cf2aa456f2c27aae827850af54ca8c4d57eca64651a05b54ff47ae6d3b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7338 5356 bytes
font_01_sfnt_off0000854c.bin
7203b5661cbdc16be265f87458d5b084b9afd4574e10ba6e9f748891bc9ae3e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x854C 10140 bytes
font_02_sfnt_off0000a7e5.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA7E5 4324 bytes

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