PDF malware analysis — malicious · 379e4f631333acf5

MALICIOUS

PDF

45.7 KB Created: 2020-08-21 03:15:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0188fe2eeeafa5600237f964f74d24f3 SHA-1: c25d1c7d62bd6f2a0d28011312b590231fa0a9f1 SHA-256: 379e4f631333acf5e33653e8c529c1f1d250995cb5286b3d445970f3abe789e4

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links, including one to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text related to 'weekly calendar template' and the malicious URL, suggesting a lure. The PDF also hosts a link farm pointing to other PDFs on Shopify domains, likely for SEO poisoning to increase visibility. No scripts were extracted from this sample.

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=weekly+calendar+template+word+doc
- http://wexado.batholdtimedancers.co.uk/uploads/1/3/1/8/131871655/5718192.pdf
- http://files.bhaktiyogi.org/uploads/1/3/1/4/131437276/2033441.pdf
- http://vasag.fireprotectionspecialists.net/uploads/1/3/1/0/131070161/soxitu.pdf
- http://karedik.resilientpeople.ca/uploads/1/3/1/4/131454215/fafab.pdf
- http://files.irr-f.org/uploads/1/3/0/7/130739776/af5c3dd83c0056.pdf
- https://cdn.shopify.com/s/files/1/0433/8614/2876/files/dudedeli.pdf
- https://cdn.shopify.com/s/files/1/0433/4111/9647/files/active_learning_cooperation_in_the_college_classroom.pdf
- https://cdn.shopify.com/s/files/1/0439/0505/6920/files/busuu_pro_apk_onhax.pdf
- https://cdn.shopify.com/s/files/1/0432/5670/9288/files/coca_cola_history.pdf
- https://cdn.shopify.com/s/files/1/0434/5646/3014/files/84161005755.pdf
- https://cdn.shopify.com/s/files/1/0429/1713/4502/files/wikavonagajajirukesepelol.pdf
- https://cdn.shopify.com/s/files/1/0432/1673/2315/files/xakenafububosokez.pdf
- https://cdn.shopify.com/s/files/1/0434/1835/3815/files/nutupemadusugoseb.pdf
- https://cdn.shopify.com/s/files/1/0429/9236/9823/files/letterhead_format_in_word.pdf
- https://cdn.shopify.com/s/files/1/0430/0416/6297/files/80238334945.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000067a5.bin` `081ac34516fb2f35e0014ec76e1dc9a75f3f0d55db03522c11ea30132031d63b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67A5	5052 bytes
`font_01_sfnt_off000078d2.bin` `c28424af21fcaa600b8ffb80476a962631371df9146c357249d93e8feab3fa73`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x78D2	10452 bytes
`font_02_sfnt_off00009bb8.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9BB8	4324 bytes

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