Malicious PDF — malware analysis report

Static analysis result for SHA-256 484f81a3ba0e134a…

MALICIOUS

PDF

38.2 KB Created: 2020-09-08 13:10:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02ce61ef29ed6dc9706872f29415a1ef SHA-1: 3fa735745c420e1239e177d9d1979f975ba3f075 SHA-256: 484f81a3ba0e134ac30b56379edb8751943a1479d873684cbf535515d82e8609
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.club'. The document body, though heavily obfuscated, contains references to financial policies and procedures, aligning with the 'SE_PAYMENT_REDIRECT_LURE' heuristic. This suggests the document is designed to trick users into clicking the malicious link, likely for phishing or to download further malicious content. The presence of numerous embedded links, many pointing to Shopify, indicates a link farm strategy to obscure the ultimate destination.

Heuristics 4

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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.club/wix?keyword=financial+policies+and+procedures+manual+template
    • https://cdn.shopify.com/s/files/1/0469/0483/6258/files/tasuwej.pdf
    • https://cdn.shopify.com/s/files/1/0439/1328/1688/files/vosikokire.pdf
    • https://cdn.shopify.com/s/files/1/0431/1118/6588/files/33969945377.pdf
    • https://cdn.shopify.com/s/files/1/0437/3384/4119/files/best_fly_sheet_horses.pdf
    • https://cdn.shopify.com/s/files/1/0434/0419/8044/files/34942511398.pdf
    • https://static.usrfiles.com/ugd/0047a4_4afe3c7e81e446e59582bbe6429a638a.pdf
    • https://static.usrfiles.com/ugd/05e3ad_aac8616e809a450ab18b869089188a02.pdf
    • https://static.usrfiles.com/ugd/f3ecbe_c222d101d136473397eb89aa8d45f9b1.pdf
    • https://static.usrfiles.com/ugd/1decf9_3c7c273c3d9a4691bc3631d2aa3ab938.pdf
    • https://cdn.shopify.com/s/files/1/0431/1249/7312/files/sistema_de_unidades_cgs.pdf
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/ozark_trail_air_pump.pdf
    • https://cdn.shopify.com/s/files/1/0427/6954/7431/files/emotional_intelligence_2._0_epub.pdf
    • https://cdn.shopify.com/s/files/1/0433/0727/0312/files/a_very_merry_daughter_of_the_bride.pdf
    • https://cdn.shopify.com/s/files/1/0428/8000/8359/files/fovapimojurevubajuneb.pdf
    • https://cdn.shopify.com/s/files/1/0430/5430/1338/files/tevigonuwuxifox.pdf
    • https://cdn.shopify.com/s/files/1/0429/7503/5541/files/niroxoliviluvabunilujub.pdf
    • https://cdn.shopify.com/s/files/1/0434/6016/5797/files/demotivation_poster_maker.pdf
    • https://cdn.shopify.com/s/files/1/0429/5367/0822/files/statistical_methods_and_data_analysis_by_faqir_muhammad_download.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_off00005749.bin
d997697a804b02cc42b4739dff5e1311f362be3293699bb452a8d56c9e058875		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5749 5176 bytes
font_01_sfnt_off000068ca.bin
553e7426d46109b89f2474c284070214facd491a2cb7d19bbd31565ef1b69f96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68CA 10136 bytes

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