Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd7aad0bb2b457ac…

MALICIOUS

PDF

42.7 KB Created: 2020-08-19 09:01:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: afd80569b9666ba8109b4436020ee977 SHA-1: 6fc6d55ffd3b4792ba95ed3c9c2d59c475c52ced SHA-256: dd7aad0bb2b457ac024542c069ffdb948809cde7995cd4517739bca07875af29
150 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector to malicious infrastructure, disguised as a 'football game stats template'. The ML classifier strongly indicated maliciousness. The primary malicious IOC is the redirector URL, which likely leads to a further stage of the attack.

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.cc/pify?keyword=football+game+stats+template
    • http://files.bowerytrio.com/uploads/1/3/2/6/132695719/xoxufevadezivufakima.pdf
    • http://bawowevut.christbeforeme.com/uploads/1/3/0/7/130774982/7994044.pdf
    • http://metureb.fairwindsvilla.com/uploads/1/3/1/1/131163599/8983e.pdf
    • http://files.nourishandthriveforlife.com/uploads/1/3/0/9/130969917/gekilas-xupewakebad.pdf
    • https://cdn.shopify.com/s/files/1/0431/1328/3735/files/learn_calligraphy_free.pdf
    • https://cdn.shopify.com/s/files/1/0447/1400/0540/files/3d_reader_uptodown.pdf
    • https://cdn.shopify.com/s/files/1/0431/5804/4828/files/76999832530.pdf
    • https://cdn.shopify.com/s/files/1/0431/0017/6544/files/lomapoluz.pdf
    • https://cdn.shopify.com/s/files/1/0429/9600/7065/files/40642556863.pdf
    • https://cdn.shopify.com/s/files/1/0431/7904/9121/files/givunaxegimodozujum.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/viborovikumowenaben.pdf
    • https://cdn.shopify.com/s/files/1/0430/8264/5665/files/26125911811.pdf
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/zinami.pdf
    • https://cdn.shopify.com/s/files/1/0429/7519/9391/files/five_stages_of_grief.pdf
    • https://cdn.shopify.com/s/files/1/0433/6159/9656/files/breathless_song_dance_video.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_off000067f9.bin
9c5458a2b5ea4aa45270e56c08909e4a1dceec34b283501afddf84c4d78b6534		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67F9 5136 bytes
font_01_sfnt_off00007967.bin
024a6f832b219d0386d2e15682902def3b36bee60a76ed91be4ae340a4e9264a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7967 11012 bytes

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