PDF malware analysis — malicious · 43101099c9ec7252

MALICIOUS

PDF

45.1 KB Created: 2020-07-15 12:20:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 606a9e5af6473889a032cdcd63442ffb SHA-1: 92a1903af9b8d826cd2a5ee7fdd006cccd866212 SHA-256: 43101099c9ec725297820609968d3640569ef8553ae5a85f878966d4bfa12f4c

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, identified as a 'PDF SEO Link Farm'. One of these links, 'https://ttraff.ru/wb?keyword=transformation%20of%20sentences%20exercises%20with%20answers%20pdf', is flagged as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious infrastructure, potentially for phishing or malware distribution.

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.ru/wb?keyword=transformation%20of%20sentences%20exercises%20with%20answers%20pdf
- http://files.mattblackhall.com/uploads/1/3/0/9/130969820/74696963fbb50c.pdf
- http://files.elizabethandbee.com/uploads/1/3/2/7/132740515/2990052.pdf
- http://files.victoriarueda.com/uploads/1/3/2/6/132681634/gatufidajigugib.pdf
- https://cdn.shopify.com/s/files/1/0431/2553/8973/files/geraxudajolutuwesirul.pdf
- https://cdn.shopify.com/s/files/1/0431/1502/0448/files/gulagupupigonamezinuji.pdf
- https://cdn.shopify.com/s/files/1/0431/5624/2581/files/16121753025.pdf
- https://sulekes.files.wordpress.com/2020/06/xapunilodomutuvur.pdf
- https://zufudevuse.files.wordpress.com/2020/07/fiwuvixupofebovi.pdf
- https://moruzimob.files.wordpress.com/2020/06/57601403108.pdf
- https://zizuxufu.files.wordpress.com/2020/07/limefupesamunenibifibub.pdf
- https://tefaluvutas.files.wordpress.com/2020/07/selunivuxar.pdf
- https://cdn.shopify.com/s/files/1/0429/9482/7415/files/katavogexisugo.pdf
- https://cdn.shopify.com/s/files/1/0427/3248/6823/files/21341864993.pdf
- https://cdn.shopify.com/s/files/1/0430/0252/7895/files/talomipujoranozoz.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nenixuraxolitater.pdf
- https://cdn.shopify.com/s/files/1/0432/0349/4043/files/75121510689.pdf
- https://cdn.shopify.com/s/files/1/0433/1316/8542/files/doxinixaxivu.pdf
- https://cdn.shopify.com/s/files/1/0427/7554/3964/files/jijurimusazizemoxisuta.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9715790575.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/
- https://cdn.shopify.com/s/f

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000723c.bin` `ae00663dc5002ebee1af5d61fa03380fb404a7d7a6a54938cc3579697aa58181`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x723C	5260 bytes
`font_01_sfnt_off000083f8.bin` `b3c3d32d58df1e6a3c381cc73b353cb6cbca66f8df37563c91aabbc35d3b1157`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83F8	10164 bytes

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