Malicious PDF — malware analysis report

Static analysis result for SHA-256 41618b06bb95d35a…

MALICIOUS

PDF

33.7 KB Created: 2020-08-16 14:30:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96f9c129d57541fb31a5276848f6f25f SHA-1: 20f82fd3db5935dc92515036a10c3544f67cd800 SHA-256: 41618b06bb95d35ab603a7c639d594c89ed4fc109eea525d76429f8ce0e94648
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The 'PDF_SEO_LINK_FARM' heuristic further indicates a pattern of generating numerous links to obscure the malicious intent. The primary malicious URL identified is https://ttraff.com/pify?keyword=expanded+notation+decimals+worksheets, which is likely used to deliver a secondary payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=expanded+notation+decimals+worksheets
    • http://faful.handmadebyluluke.com/uploads/1/3/2/6/132683403/xoneraloroboma.pdf
    • http://vaxomul.massoutdoorheritage.org/uploads/1/3/1/4/131453133/pagenopu.pdf
    • http://files.moxyinithaca.com/uploads/1/3/1/4/131437380/d4e34c510f71.pdf
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/24680143805.pdf
    • https://cdn.shopify.com/s/files/1/0433/3142/0319/files/fividesoligelatelukabik.pdf
    • https://cdn.shopify.com/s/files/1/0433/2450/6266/files/zezamamijulufik.pdf
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/xekaxiwovav.pdf
    • https://cdn.shopify.com/s/files/1/0432/6585/1542/files/a_brief_history_of_neoliberalism.pdf
    • https://cdn.shopify.com/s/files/1/0432/2079/5556/files/18330876988.pdf
    • https://cdn.shopify.com/s/files/1/0437/6657/9354/files/90891127694.pdf
    • https://cdn.shopify.com/s/files/1/0432/1676/5088/files/gukajudemedifinaxolej.pdf
    • https://cdn.shopify.com/s/files/1/0431/4054/6714/files/48119009689.pdf
    • https://cdn.shopify.com/s/files/1/0432/4871/3896/files/naxasanapakumene.pdf
    • https://cdn.shopify.com/s/files/1/0430/6183/7981/files/a-_z_movie_video_song.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_off00004654.bin
12fd7bc15dfab92d56240c90545e97986572fbe85314b5a95c59af895055b6a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4654 5496 bytes
font_01_sfnt_off000058ec.bin
7da46c7ec5d2cee14d581b6d9df035b532480c21d55e1e6882d316125ebe6709		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58EC 9756 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.