Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fd0739d5d312d5a…

MALICIOUS

PDF

58.7 KB Created: 2020-07-31 11:46:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c188280a0a9df48c5320481897e2c33b SHA-1: e2bb38ccec05babc603cf2d250a6c45c549bcd58 SHA-256: 3fd0739d5d312d5a14d8230bdc075b720c9a8ee1f328906f403b3741fc0e3aa8
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This indicates the document is designed to lead users to malicious sites. Additionally, it exhibits a PDF link farm heuristic, suggesting a tactic to artificially boost search engine rankings or distribute links. The ML classifier strongly supports the malicious nature of this PDF.

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=third+eye+awakening+book+pdf
    • http://files.goodshepherdogden.org/uploads/1/3/1/1/131164386/ff25b830930c1.pdf
    • http://files.northerntracker.ca/uploads/1/3/1/3/131398598/3841062.pdf
    • http://files.charmingcastle.com/uploads/1/3/2/6/132695569/8546624.pdf
    • http://files.amazingoxygen.com/uploads/1/3/1/6/131606368/3729989.pdf
    • https://cdn.shopify.com/s/files/1/0428/0667/3574/files/togatirab.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/lipomusopanova.pdf
    • https://cdn.shopify.com/s/files/1/0437/5930/4865/files/60728341318.pdf
    • https://cdn.shopify.com/s/files/1/0436/2859/3315/files/kumasoxowir.pdf
    • https://cdn.shopify.com/s/files/1/0433/3204/2920/files/garibanuzitubiwunuwagam.pdf
    • https://cdn.shopify.com/s/files/1/0434/6645/7254/files/megaxitenodubide.pdf
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/75569306837.pdf
    • https://cdn.shopify.com/s/files/1/0430/0131/5491/files/dasob.pdf
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/43058362727.pdf
    • https://cdn.shopify.com/s/files/1/0437/6972/5080/files/19530766110.pdf
    • https://cdn.shopify.com/s/files/1/0430/8910/0957/files/zifurud.pdf
    • https://cdn.shopify.com/s/files/1/0432/5693/8664/files/58632903154.pdf
    • https://cdn.shopify.com/s/files/1/0434/6953/7432/files/zetesofulufe.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_off0000a812.bin
e6d261322bad13c71231bd786a7b07949882af88db85a5b4828c77cb50895c11		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA812 5148 bytes
font_01_sfnt_off0000b995.bin
18d757e482fbed0852c8d688be42380165d139d8c12009ac0eae892024b125a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB995 10436 bytes

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