Malicious PDF — malware analysis report

Static analysis result for SHA-256 c84471258f57d908…

MALICIOUS

PDF

44.6 KB Created: 2020-08-09 01:29:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5566fe851529b5d8f02aa047f2cffacc SHA-1: fb791b17507bdd68d9cb86c4ef81a8884822eea0 SHA-256: c84471258f57d90843cebcb1f791f543c2e48d7f178ebc59903eed2f6bc71b3b
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL is https://ttraff.com/pify?keyword=always+hungry+conquer+cravings+pdf, which is likely used to redirect users to further malicious content. The document body contains obfuscated text and URLs, further supporting the malicious intent.

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/pify?keyword=always+hungry+conquer+cravings+pdf
    • http://files.lastcallexperience.com/uploads/1/3/1/3/131383823/suduzuwate-pegewarufedik-gajofapotuwuxe.pdf
    • http://files.corinnecook.me/uploads/1/3/1/1/131163953/fifovezobobudu.pdf
    • http://files.djrisen.com/uploads/1/3/0/7/130775109/gulovesovozitixu.pdf
    • http://files.kaelynschmidtdesign.com/uploads/1/3/1/1/131164479/6f30c15faf.pdf
    • https://cdn.shopify.com/s/files/1/0434/3096/9511/files/95607621180.pdf
    • https://cdn.shopify.com/s/files/1/0431/5850/3584/files/54905505943.pdf
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/xevusenukasolipejowarep.pdf
    • https://cdn.shopify.com/s/files/1/0428/6427/9718/files/custodian_cover_letter.pdf
    • https://cdn.shopify.com/s/files/1/0433/2313/0009/files/panutusekasikebinewin.pdf
    • https://cdn.shopify.com/s/files/1/0438/1474/8322/files/north_las_vegas_animal_control.pdf
    • https://cdn.shopify.com/s/files/1/0434/3106/7813/files/dumonemonenoragazegajose.pdf
    • https://cdn.shopify.com/s/files/1/0431/5385/0528/files/zapevunab.pdf
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/hebrew_alphabet_flash_cards_printable.pdf
    • https://cdn.shopify.com/s/files/1/0437/6435/1130/files/40139130224.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_off00006f13.bin
7e71e46a18852551b6e423bcc04c55e0d9caee5628209dae5117ead7b4a3d885		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F13 5788 bytes
font_01_sfnt_off000082e0.bin
e7c83b29e1701fc95480e682008cc9b2d8cbde26aeddba28ab2b908fae49c5ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82E0 10176 bytes

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