Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e46237b439b8a70…

MALICIOUS

PDF

41.2 KB Created: 2020-08-31 00:06:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 578eca8520007cafc2863e826b656fb3 SHA-1: 92e59380c8e7be1af893b6fb84d00be20134b1c2 SHA-256: 9e46237b439b8a705475334e3adeed086a42180bccb27e2fd90fb29553f265d2
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is likely used to host further malicious content or phishing pages. The document body, though heavily obfuscated, contains the same URL and a product name, suggesting a lure. The PDF also contains a large number of external links, characteristic of a link farm, likely for SEO poisoning or to distribute malicious content. No scripts were extracted, and the PDF structure itself does not indicate specific exploit techniques beyond redirection.

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/wix?keyword=freemie+deluxe+independence+mobile+breast+pump
    • https://static.usrfiles.com/ugd/b8c837_a2069fcc385d483c8417b5d2b6ac7d3a.pdf
    • https://static.usrfiles.com/ugd/b8c837_ad9832d2efd24c09924b5cce1a436411.pdf
    • https://static.usrfiles.com/ugd/d55797_79fcae23ecb648b4836c5700e7064d10.pdf
    • https://cdn.shopify.com/s/files/1/0431/0453/4692/files/gemazuxereroge.pdf
    • https://cdn.shopify.com/s/files/1/0440/8272/5029/files/towigevinutigesole.pdf
    • https://cdn.shopify.com/s/files/1/0430/4538/8442/files/53167514280.pdf
    • https://static.usrfiles.com/ugd/ac72e0_d1f6b676c5ba4dba979aeafa733fcef0.pdf
    • https://static.usrfiles.com/ugd/b8c837_a79fbc4fff6349d8a55de628fba08f0e.pdf
    • https://static.usrfiles.com/ugd/d1c05f_d8e9c9868dcb46358ef33abcccac48a4.pdf
    • https://static.usrfiles.com/ugd/cec570_d187679901af44dcb7cb56a54002276d.pdf
    • https://static.usrfiles.com/ugd/b8c837_e6b032325d904897bf9cf1e87d7ac8a1.pdf
    • https://static.usrfiles.com/ugd/0df15e_8f07a8cb3ad64ff7b99b7cd3dee40129.pdf
    • https://static.usrfiles.com/ugd/9ff9b8_853d69d0a1f348e99765c18605b0860d.pdf
    • https://static.usrfiles.com/ugd/91e123_5b06d68084c240219bb93ff8d2cad2a9.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_off00006249.bin
74eadfd18ace606fbf8d189c2264c592dfe13f91cd0db9affb5f71cdc9a5006e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6249 5384 bytes
font_01_sfnt_off0000746e.bin
7dea17df3837783ccaffc2f01b77466ee06626286e227137360ac6adb9e36328		 pdf-font-stream PDF embedded font (sfnt) at offset 0x746E 10364 bytes

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