Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9a235491a51f4b6…

MALICIOUS

PDF

46.0 KB Created: 2020-08-18 13:04:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 582a52c69256100aa6ef0273c684b10b SHA-1: 68890067e72f831ca9685a07389e8aa35218d329 SHA-256: f9a235491a51f4b609baf3e4d991dbb7e5880f42f37e2d83300d9c4a1353a75d
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.ru/pify?keyword=2018+chevy+colorado+zr2+diesel+performance+parts', is flagged as a malicious redirector. The document body appears to be obfuscated or corrupted, but the presence of numerous links, including the malicious one, strongly suggests an attempt to lure users to harmful websites. 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.ru/pify?keyword=2018+chevy+colorado+zr2+diesel+performance+parts
    • http://files.2003ebaenglandscotlandtrip.com/uploads/1/3/1/6/131637308/vokosifavovanolopar.pdf
    • http://files.lyyskidesigns.com/uploads/1/3/0/7/130776503/tozabuga.pdf
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/toyota_corolla_automatic_transmission.pdf
    • https://cdn.shopify.com/s/files/1/0431/5486/6333/files/wesovodinubaruva.pdf
    • https://cdn.shopify.com/s/files/1/0449/8666/3070/files/nacionalismo_econmico.pdf
    • https://cdn.shopify.com/s/files/1/0433/6821/8780/files/bioinformatics_data_analysis_courses.pdf
    • https://cdn.shopify.com/s/files/1/0434/7753/2824/files/98890748331.pdf
    • https://cdn.shopify.com/s/files/1/0433/1523/2921/files/james_sa_corey_caliban_s_war.pdf
    • https://cdn.shopify.com/s/files/1/0437/8460/1752/files/22443715339.pdf
    • https://cdn.shopify.com/s/files/1/0430/7651/8049/files/95931324833.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_off000066fa.bin
6d625b386a789484bd29f94446c0f1f2801f8c1d98b9e892f7ba76bea92323d0
pdf-font-stream PDF embedded font (sfnt) at offset 0x66FA 5820 bytes
font_01_sfnt_off00007aa5.bin
9e8fa70a722cf3f771c59b129db46f9d829b8ed500a068afc4b803303e76824e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA5 9968 bytes
font_02_sfnt_off00009ce2.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x9CE2 4324 bytes