Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d48e1a74a5a92be…

MALICIOUS

PDF

44.6 KB Created: 2020-08-30 00:04:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74ee24b495adf9187f45a82eb9422a70 SHA-1: a6be7a258ec90715d1dc222ba208da80b2389ecf SHA-256: 2d48e1a74a5a92be2542a4eb57688a2f39c018edefb21db1bc6413742aaac38f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a domain known for malicious redirectors. The primary malicious link, disguised as a book title, redirects to 'ttraff.com', which is flagged as a malicious redirector. This suggests a social engineering attack aimed at directing users to harmful content.

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=myers+social+psychology+12th+edition
    • https://static.usrfiles.com/ugd/d2cc1f_9ad820f9ad4542239d15175e1557a50c.pdf
    • https://static.usrfiles.com/ugd/b8c837_f65af6a0eb0446aca8d05d12e5db3907.pdf
    • https://static.usrfiles.com/ugd/b8c837_ecca9774b4e14120a00f63ae7b267244.pdf
    • https://static.usrfiles.com/ugd/b8c837_b4b03884629341b3828cbef30e5734d5.pdf
    • https://static.usrfiles.com/ugd/b8c837_aab46271fa4b4c2c8da4aa8f71a5113e.pdf
    • https://static.usrfiles.com/ugd/0a0016_4bb887d174fa46989f821c254f54a8f6.pdf
    • https://static.usrfiles.com/ugd/07625c_14ce128bafd443568cd6bc24dfb2ee18.pdf
    • https://static.usrfiles.com/ugd/b8c837_bb2dab041f91476bbe2e1167e20a9945.pdf
    • https://static.usrfiles.com/ugd/79cb75_fba8496241e14db3a77d8430633b436c.pdf
    • https://static.usrfiles.com/ugd/63022f_b0342ebe4a884d12a926ffa2ea8ba136.pdf
    • https://static.usrfiles.com/ugd/b8c837_132628c7ef364e36a9117a681bf6acdf.pdf
    • https://cdn.shopify.com/s/files/1/0432/7918/8118/files/35105862808.pdf
    • https://cdn.shopify.com/s/files/1/0432/0378/8959/files/16152176443.pdf
    • https://cdn.shopify.com/s/files/1/0434/0069/1862/files/berklee_ear_training.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gimuwuwizarisatin.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_off0000621e.bin
d5d64390172d838851d07e78f30621f46415bfc9753644638972edb2eb1844ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x621E 5416 bytes
font_01_sfnt_off00007491.bin
bdc369cbc2e3ecf920f3404fd2ee62f380657f0729a09d58076784086b9dd012
pdf-font-stream PDF embedded font (sfnt) at offset 0x7491 10204 bytes
font_02_sfnt_off00009791.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9791 4324 bytes