Malicious PDF — malware analysis report

Static analysis result for SHA-256 e734742af0b8b252…

MALICIOUS

PDF

53.3 KB Created: 2020-08-17 16:01:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89432e44d0876b809802d5e5e52c5564 SHA-1: c6ddadbd72b4aba68d168018b61945ebe4f8a243 SHA-256: e734742af0b8b25213ccbf7fbab02682b28cd5fcd42bac89da67b60ddc1cb9e5
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=formato+demanda+amparo+indirecto+civil', is designed to redirect users to malicious infrastructure. The file also exhibits characteristics of a PDF link farm, suggesting an attempt to distribute malicious content through numerous links.

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.cc/pify?keyword=formato+demanda+amparo+indirecto+civil
    • http://files.bluecollarhomeschool.com/uploads/1/3/1/4/131454090/xipazegalijivuw-bivosokowe.pdf
    • http://files.christianchildrensentertainment.com/uploads/1/3/1/3/131379183/tuwig-lidirepiw-mizikifalo.pdf
    • http://files.melwycked.com/uploads/1/3/1/4/131437956/kigipawubujexoderer.pdf
    • http://files.bluecollarhomeschool.com/uploads/1/3/1/4/13
    • https://cdn.shopify.com/s/files/1/0428/7243/8947/files/57363235579.pdf
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/america_map_download.pdf
    • https://cdn.shopify.com/s/files/1/0436/4081/5774/files/90157877737.pdf
    • https://cdn.shopify.com/s/files/1/0428/0467/4727/files/letijumox.pdf
    • https://cdn.shopify.com/s/files/1/0433/8165/3655/files/80857381642.pdf
    • https://cdn.shopify.com/s/files/1/0433/9033/7189/files/jadojipexudufosob.pdf
    • https://cdn.shopify.com/s/files/1/0428/5349/9046/files/kenmore_dehumidifier_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/2884/8538/files/lifavegujonododig.pdf
    • https://cdn.shopify.com/s/files/1/0435/7623/0046/files/62426188604.pdf
    • https://cdn.shopify.com/s/files/1/0427/6885/9303/files/89713343290.pdf
    • https://cdn.shopify.com/s/files/1/0432/7296/2203/files/24477453556.pdf
    • https://cdn.shopify.com/s/files/1/0430/8477/5577/files/pofatumuvegadewesad.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_off00008b26.bin
ab29b74d1ed73ae74a2b6ba67dd4d3af7239fb8d09c066d72b0b59e2b86b3de8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B26 5056 bytes
font_01_sfnt_off00009c44.bin
c735d19d7b265f2f6c04342d9cbd5dbf04e8ffbfb9748448b2da41e303af39c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C44 14796 bytes

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