Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8205b0c4f0f7245…

MALICIOUS

PDF

48.3 KB Created: 2020-08-25 15:17:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9b55b2687231999d826fd420661d322 SHA-1: 1fadebe8e3ab5d1612260797bc2c14c5132b3041 SHA-256: e8205b0c4f0f724593053690c06b4e46501b913d9a40d2c4edc03469b1d82a93
150 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.cc', which is flagged as a malicious redirector. The document body and embedded links suggest a lure for cracked software, specifically 'Ableton Live 10 crack'. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm designed to attract search engine traffic. The ML classifier also strongly indicated maliciousness.

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=ableton+live+10++crack
    • http://files.harlesdencommunityhub.com/uploads/1/3/0/7/130739570/sataduvoxepolusun.pdf
    • http://files.skylynart.com/uploads/1/3/0/7/130776755/30c5e.pdf
    • http://files.reneparagas.com/uploads/1/3/2/7/132740586/jeginujisovej.pdf
    • http://sudipofal.sledgeoutfitters.com/uploads/1/3/2/6/132682859/3107563.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30151397197.pdf
    • https://cdn.shopify.com/s/files/1/0429/2214/8003/files/82335510228.pdf
    • https://cdn.shopify.com/s/files/1/0447/0390/7993/files/convert_vcf_to.pdf
    • https://cdn.shopify.com/s/files/1/0429/0894/2492/files/dosulajijo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/wodob.pdf
    • https://cdn.shopify.com/s/files/1/0440/5959/0806/files/bloons_td_6_full_apk_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/8755/9833/files/38344935803.pdf
    • https://cdn.shopify.com/s/files/1/0438/3621/1357/files/sukogugunelogunifelodibu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8841/2836/files/36181909336.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/benubojebexoreloruva.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_off0000806f.bin
1d93272160399928b314abf98d5c716ecffee4e8be8bffad64ceeda5f462b53d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x806F 5060 bytes
font_01_sfnt_off000091bf.bin
2472550f51901019aeb2623801ebbc95b62e8988781ccc137ff9aa10f90b0fee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91BF 10220 bytes

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