Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae6066813bf3da46…

MALICIOUS

PDF

38.1 KB Created: 2020-08-01 03:14:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66430834a8f668d15722f44519af88eb SHA-1: f91f31797dec7977d2d10632c3fb8ddf898a4f4b SHA-256: ae6066813bf3da46cf8962b6c4ae63d5d16917e76e8e7dc4187df07b519d6b74
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a 'PDF SEO Link Farm'. The primary redirector URL, 'https://ttraff.cc/pify?keyword=default-+ssl.+conf', is flagged as malicious. This suggests the document's purpose is to lure users into clicking these links, likely leading to phishing sites or malware downloads. No scripts were extracted from this sample.

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=default-+ssl.+conf
    • http://files.marketbasketomaha.com/uploads/1/3/0/7/130739651/7652722.pdf
    • http://files.northernbeacheshousewash.com/uploads/1/3/0/7/130775902/8609355.pdf
    • http://files.mx.youngstaekwondo.net/uploads/1/3/0/7/130739387/7151198.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/23683078704.pdf
    • https://cdn.shopify.com/s/files/1/0433/1870/6341/files/84107869161.pdf
    • https://cdn.shopify.com/s/files/1/0439/3353/2315/files/pokemon_colosseum_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/7103/6835/files/wizemopalub.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51031200676.pdf
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/essentials_of_healthcare_finance_7th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0437/9590/6721/files/51594305381.pdf
    • https://cdn.shopify.com/s/files/1/0431/5689/7947/files/2151095794.pdf
    • https://cdn.shopify.com/s/files/1/0437/6795/5610/files/28891384221.pdf
    • https://cdn.shopify.com/s/files/1/0435/7786/8443/files/nudisamemaxo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/6017544040.pdf
    • https://cdn.shopify.com/s/files/1/0432/3206/7748/files/sudinep.pdf
    • https://cdn.shopify.com/s/files/1/0437/1605/1096/files/zepevajidenefujuneresufa.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_off00005530.bin
9c1f7af6eac244b9b1e001b1e9fad7afcfdb4cacf00e7cb3d39dd887c668c67e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5530 4840 bytes
font_01_sfnt_off000065cf.bin
c96d80d9bacd0d44a2f21cd8065db4ee5d3a8528c384f38511af8cbd6c55b6a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65CF 11136 bytes

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