Malicious PDF — malware analysis report

Static analysis result for SHA-256 23412a038aa78efc…

MALICIOUS

PDF

40.0 KB Created: 2020-08-23 16:08:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65ba890785a4bfd5e13aa3c2f5dad943 SHA-1: c87a8789e2d0e271e1fa5d57f54cffe6eaece04e SHA-256: 23412a038aa78efc1d8d15d6c7373f0e41350b7c27eb95f846cf1f4266bfad32
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=mandated+reporter+time+frame'. Additionally, it exhibits a PDF link farm heuristic, with numerous links pointing to Shopify domains, one of which is 'https://cdn.shopify.com/s/files/1/0441/0828/4056/files/britannicus_gratuit.pdf'. The document body contains text related to 'Mandated reporter time frame' and embedded URLs, reinforcing the lure. 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=mandated+reporter+time+frame
    • http://genajomid.carolinacatholicchorale.com/uploads/1/3/0/7/130776433/nowemavawabu.pdf
    • http://giretiw.songofhopeus.com/uploads/1/3/0/7/130776702/47cef1be.pdf
    • https://cdn.shopify.com/s/files/1/0441/0828/4056/files/britannicus_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0435/2288/3735/files/mapevubiw.pdf
    • https://cdn.shopify.com/s/files/1/0435/1610/0776/files/deadpool_kills_the_marvel_universe_trke.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/bbc_jimmy_savile_report.pdf
    • https://cdn.shopify.com/s/files/1/0434/7602/5497/files/dejipovuveboxafuvabo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9483/files/42948622074.pdf
    • https://cdn.shopify.com/s/files/1/0445/6343/1588/files/php_open_file_in_new_browser_window.pdf
    • https://cdn.shopify.com/s/files/1/0431/1475/8293/files/45185444934.pdf
    • https://cdn.shopify.com/s/files/1/0433/7664/0156/files/stand_by_me_prince_royce.pdf
    • https://cdn.shopify.com/s/files/1/0428/9606/4671/files/90635990206.pdf
    • https://cdn.shopify.com/s/files/1/0437/8283/2280/files/tfc_agronomie.pdf
    • https://cdn.shopify.com/s/files/1/0434/9453/9429/files/3678237744.pdf
    • https://cdn.shopify.com/s/files/1/0431/7272/4897/files/rifewikisalelorogiramagij.pdf
    • https://cdn.shopify.com/s/files/1/0431/6259/9584/files/21381781221.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_off0000605b.bin
7d42a8cb6ecc2659656ed8d4fed5ba906ac5d05073302ab6222fac815dfb3153
pdf-font-stream PDF embedded font (sfnt) at offset 0x605B 4984 bytes
font_01_sfnt_off00007139.bin
a94ae0bb9ffa915c08a9e70c147308a66539c3804b508a65da9ff0bacf3cb455
pdf-font-stream PDF embedded font (sfnt) at offset 0x7139 10032 bytes