Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c9c0889889e4b82…

MALICIOUS

PDF

33.1 KB Created: 2020-09-09 18:05:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bd3e28cc3f34c84bd41869affcb14c4 SHA-1: 72bf1b7e4ae177f69cef7f20ef4dca155d6f5e3e SHA-256: 1c9c0889889e4b8244bec747cc3fe67cfc23f811d1977e43465e218aa6a90862
120 Risk Score

Malware Insights

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

The PDF file was flagged as a malicious redirector and a link farm. It contains numerous embedded URLs, with a primary malicious redirector identified as 'https://ttraff.club/wix?keyword=bogan+movie+songs+free++tamil'. The document body, though heavily obfuscated, also contains this URL, suggesting it is the intended destination. The presence of a large number of external links points towards a strategy to distribute malicious content or phish users.

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.club/wix?keyword=bogan+movie+songs+free++tamil
    • https://cdn.shopify.com/s/files/1/0439/3094/3643/files/counter_strike_1._8_goiceasoft_free.pdf
    • https://cdn.shopify.com/s/files/1/0448/1817/0018/files/52436200288.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5684/files/zadut.pdf
    • https://cdn.shopify.com/s/files/1/0443/0784/1180/files/malusepinomijizo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5385/0528/files/63761009346.pdf
    • https://cdn.shopify.com/s/files/1/0433/9544/8999/files/47053035504.pdf
    • https://cdn.shopify.com/s/files/1/0429/9902/1731/files/aquilaria_malaccensis.pdf
    • https://cdn.shopify.com/s/files/1/0432/4527/3248/files/easy_relative_clause_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0432/1745/3211/files/alcance_de_un_proyecto_informatico.pdf
    • https://static.usrfiles.com/ugd/dcc11b_0515bc345d0a494c877632e829ec6af3.pdf
    • https://static.usrfiles.com/ugd/2074c9_5994548ffca7498fa72a1aa9331e4c4d.pdf
    • https://cdn.shopify.com/s/files/1/0432/3403/3824/files/wizatafoveb.pdf
    • https://cdn.shopify.com/s/files/1/0431/5342/4540/files/git_cherry_pick_multiple_commits.pdf
    • https://cdn.shopify.com/s/files/1/0431/4149/6986/files/torabajogopuleloduweja.pdf
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/tesepu.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_off000045b5.bin
ebcc595de5603c447b672b9b6c54f486afb892b10c5eb3ba85181af87bec9692		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45B5 5196 bytes
font_01_sfnt_off00005759.bin
f6d563950606010940e90ed930818e8453c4fb5a688d25e39bf8106c0cc03e21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5759 9508 bytes

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