Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9fb706828f3b919…

MALICIOUS

PDF

34.0 KB Created: 2020-08-29 17:09:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7be66eca9be1faea62470efc881deb67 SHA-1: dea2956de2344fc094bf47ca8f72ce9791214836 SHA-256: e9fb706828f3b9194e58d1742a76d77fffd5e716de450d1fa4548cc1723ef1c7
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a link to a known malicious redirector. The document body and embedded artifacts suggest a lure related to downloading movies, which is then used to mask a link farm. This link farm points to numerous PDFs hosted on Shopify, with the primary malicious URL being https://ttraff.ru/wix?keyword=descargar+peliculas+de+pedro+infante+nosotros+los+pobres, which likely serves as a gateway to further malicious content.

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=descargar+peliculas+de+pedro+infante+nosotros+los+pobres
    • https://cdn.shopify.com/s/files/1/0435/8085/0335/files/anunnaki_nibiru.pdf
    • https://cdn.shopify.com/s/files/1/0432/6119/8500/files/bavijefaretefiriperep.pdf
    • https://cdn.shopify.com/s/files/1/0437/3089/4999/files/dojofisiwoxejunevijo.pdf
    • https://cdn.shopify.com/s/files/1/0440/1076/6486/files/lilazawasifofeweluxularuw.pdf
    • https://cdn.shopify.com/s/files/1/0434/1324/2014/files/26518878452.pdf
    • https://cdn.shopify.com/s/files/1/0429/2149/2643/files/zemutepiforamole.pdf
    • https://cdn.shopify.com/s/files/1/0438/0858/7938/files/gangstar_game_free_for_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/timagamivubomakugotaga.pdf
    • https://cdn.shopify.com/s/files/1/0432/0247/8237/files/kptcl_recruitment_notification_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/jarojitalimogu.pdf
    • https://cdn.shopify.com/s/files/1/0437/7329/6789/files/todugenizijawusixidot.pdf
    • https://static.usrfiles.com/ugd/b8c837_8a1106e07fa74690aa14897735df7630.pdf
    • https://static.usrfiles.com/ugd/b8c837_2b501853060a42d7b78d1b69e0aee4bf.pdf
    • https://static.usrfiles.com/ugd/a76634_43c91d9b74af4784b48d607990fc97be.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_off0000432f.bin
694573790065076db1741d7dcb7d46eecbcc75cb113bc0db5c1d35f07c6b4b2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x432F 5464 bytes
font_01_sfnt_off000055c7.bin
f3ddad6ba85a6e1b8d0904be33844d786db1b0fe30d4e2136a79acff99b133be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55C7 11132 bytes

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