Malicious PDF — malware analysis report

Static analysis result for SHA-256 f242fb2c4021ee6d…

MALICIOUS

PDF

44.1 KB Created: 2020-08-19 10:40:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7669aaaa856ff69b7a140cf471ce004c SHA-1: d8ab74935fae6bbc8f3f0f134f17366b2141799d SHA-256: f242fb2c4021ee6db4961818e236c21602b90cbf292c719b4b90affb55d0cd08
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector pointing to ttraff.ru, disguised with a 'curriculum vitae definition' keyword. This suggests a phishing or scam attempt to lure users to malicious content. No scripts were extracted, limiting the analysis of direct payload execution.

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/pify?keyword=curriculum+vitae+definition+pdf
    • http://zumexev.orangevalleycreations.com/uploads/1/3/1/4/131407406/wikal.pdf
    • http://files.natashabehl.com/uploads/1/3/2/6/132681342/nowebupotafonow.pdf
    • http://files.kellywalkottenphotography.com/uploads/1/3/1/3/131381518/9ef3a28c2272.pdf
    • http://files.designmyitalianwedding.com/uploads/1/3/0/7/130775506/358232.pdf
    • http://files.threemoorsvetservices.co.uk/uploads/1/3/0/8/130874266/muxopupeg.pdf
    • https://cdn.shopify.com/s/files/1/0433/9751/3381/files/semozurizowemor.pdf
    • https://cdn.shopify.com/s/files/1/0433/0107/7142/files/rokemopukiditometowe.pdf
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/rikerifibelebe.pdf
    • https://cdn.shopify.com/s/files/1/0437/7139/6257/files/abstraktion_und_einfhlung.pdf
    • https://cdn.shopify.com/s/files/1/0433/2843/8427/files/sinusite_cronica_tratamento.pdf
    • https://cdn.shopify.com/s/files/1/0429/5150/8131/files/5870923771.pdf
    • https://cdn.shopify.com/s/files/1/0430/5590/6973/files/90416115793.pdf
    • https://cdn.shopify.com/s/files/1/0433/6700/6364/files/rakumik.pdf
    • https://cdn.shopify.com/s/files/1/0429/6078/1465/files/40427569466.pdf
    • https://cdn.shopify.com/s/files/1/0437/2843/7409/files/84152538798.pdf
    • https://cdn.shopify.com/s/files/1/0427/7259/4844/files/jafaxanusebikeserivite.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_off00006b35.bin
b7d93b6aff38a9680d53c6691cbb84f85fdc8af4ac10b7e65957466f255056af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B35 5088 bytes
font_01_sfnt_off00007c6e.bin
02ff6fd65c54d7d736c61180974bac982a22ed0817894792e37420a12b53af43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6E 11640 bytes

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