PDF malware analysis — malicious · ca8d36174c6c95c9

MALICIOUS

PDF

41.3 KB Created: 2020-08-06 19:49:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 996e3fb076406dc05771ef30efe5c98d SHA-1: 34709696b2a2c7f257937b98eb57b4577f0699ab SHA-256: ca8d36174c6c95c98e83903b27896a8988ef1ccefafcaf09697ad711e89eeca3

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links, including a critical redirector link to 'ttraff.com', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of a large number of external PDF links indicates a link farm, likely for SEO poisoning or to host further malicious content.

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=coronavirus+canino+pdf
- http://dedomirof.drchensacupuncture.com/uploads/1/3/1/4/131437657/7ffd4.pdf
- http://tupipa.healthlinc.org/uploads/1/3/1/3/131379578/zexavabe-pibasexuk-mujumodap-wazujuwadusi.pdf
- http://files.chrisbikes.co.uk/uploads/1/3/1/6/131606407/032f4d1d05f10a.pdf
- http://files.fgcschool.org/uploads/1/3/1/0/131071127/9ff573257d5748.pdf
- http://files.meowmeowpowpowlit.com/uploads/1/3/1/4/131483143/3849451.pdf
- https://cdn.shopify.com/s/files/1/0431/5106/5243/files/67928719068.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53151925343.pdf
- https://cdn.shopify.com/s/files/1/0434/8795/3053/files/54348736849.pdf
- https://cdn.shopify.com/s/files/1/0428/2561/3475/files/54023076956.pdf
- https://cdn.shopify.com/s/files/1/0427/4431/6070/files/vepafubenazesapogajid.pdf
- https://cdn.shopify.com/s/files/1/0430/7727/1703/files/momotatul.pdf
- https://cdn.shopify.com/s/files/1/0430/8857/6661/files/53340703704.pdf
- https://cdn.shopify.com/s/files/1/0432/0726/2370/files/bank_appointment_letter_format.pdf
- https://cdn.shopify.com/s/files/1/0432/8731/4585/files/26359051755.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/punafaga.pdf
- https://cdn.shopify.com/s/files/1/0429/7300/3935/files/94370239844.pdf
- https://cdn.shopify.com/s/files/1/0435/5247/3252/files/busogebaxapokosebasuboxo.pdf
- https://cdn.shopify.com/s/files/1/0430/8067/9577/files/pugazadod.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00006450.bin` `84bc990c5ea5e428f3e339150057c8019e5518be5a2e8e9bb53640ee2731073b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6450	5080 bytes
`font_01_sfnt_off000075ac.bin` `f81dbf87c4fa3d802aca72eb6648b8fabd8fdeaf4f2a1ad901106ed473073516`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x75AC	10296 bytes

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