Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4e6634e17f6a4b7…

MALICIOUS

PDF

46.8 KB Created: 2020-09-01 20:02:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8899ce3ec90be1a5ebb4f3a1246aadcd SHA-1: 6ca1076337a6040a6fbf1a8ff8b5a796f941978e SHA-256: d4e6634e17f6a4b7c6db5f66f1af51854af7125c87a812441f3d87b2af8c87b6
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a large number of embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One such link, 'https://ttraff.com/wix?keyword=airmen+form+date+2020', is flagged as a known malicious redirector. The document body contains garbled text but also includes the same malicious URL and a benign-looking PDF URL, suggesting an attempt to disguise malicious intent. 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=airmen+form+date+2020
    • https://static.usrfiles.com/ugd/19ce5d_4559680a249b44e9a902efc020c78c0d.pdf
    • https://static.usrfiles.com/ugd/49be48_41e08300fbc84926b8fbe82e85985495.pdf
    • https://static.usrfiles.com/ugd/3bf302_3e3f10cb61114fbeb79d488d299538d5.pdf
    • https://static.usrfiles.com/ugd/d7ba0f_1090441acd2a492bbb5422abefefbb12.pdf
    • https://static.usrfiles.com/ugd/a31856_55a472a0e62b4176b6aae62774ca4bac.pdf
    • https://static.usrfiles.com/ugd/b8c837_f5d5f1db93b345bcac292f10af032b67.pdf
    • https://static.usrfiles.com/ugd/a2ebd8_7bca125202a746989840e385b1487833.pdf
    • https://static.usrfiles.com/ugd/64db51_22ce19533dd44f85b33cc5f67faec679.pdf
    • https://cdn.shopify.com/s/files/1/0441/0313/9480/files/725510430.pdf
    • https://cdn.shopify.com/s/files/1/0432/7217/5784/files/zisuja.pdf
    • https://cdn.shopify.com/s/files/1/0460/3392/8356/files/arrow_season_4_episode_8_subtitles.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luvibuxunefipefijuli.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_off000076ca.bin
f77c1eb5f87ff73bc5b1dc01cd9c1cc78d5439da848e35bb797b5e12afa846a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76CA 5104 bytes
font_01_sfnt_off0000880e.bin
5dd7055eae7af1a37ef38e53562b535c5869e6ac45177534df21ec994a504e0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x880E 11528 bytes

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