PDF malware analysis — malicious · 5149432b3c918d69

MALICIOUS

PDF

54.4 KB Created: 2020-08-25 20:16:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c41b0f3bf8e8d1060e2c0e96c1dbfda3 SHA-1: 0af16f44fd2f88da536883e34102c4eb6b5b0338 SHA-256: 5149432b3c918d696fb1e92b455c4244c58daf758e2b904276e286ae3b102e91

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. The document body text, though garbled, includes the same game reference found in the malicious URL, suggesting a lure to trick users into visiting the malicious site. The ML classifier strongly supports the malicious verdict.

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.ru/pify?keyword=forge+of+empires+best+layout
- http://files.icbluestockings.org/uploads/1/3/0/7/130776712/veliwu-nunexozizosixoj.pdf
- http://files.suzannegrantham.com/uploads/1/3/1/6/131636930/c15241b3c.pdf
- https://cdn.shopify.com/s/files/1/0438/0911/2226/files/rotgut_distillery_bait.pdf
- https://cdn.shopify.com/s/files/1/0456/8544/0671/files/80273121669.pdf
- https://cdn.shopify.com/s/files/1/0430/8962/5250/files/refoguxudumed.pdf
- https://cdn.shopify.com/s/files/1/0437/6923/3565/files/achari_america_yatra_movie_free.pdf
- https://cdn.shopify.com/s/files/1/0433/0212/5733/files/46414834360.pdf
- https://cdn.shopify.com/s/files/1/0428/8105/6935/files/jikogufawitovogo.pdf
- https://cdn.shopify.com/s/files/1/0433/8394/7427/files/punerupebilo.pdf
- https://cdn.shopify.com/s/files/1/0437/3820/2273/files/bamabazuwigufuj.pdf
- https://cdn.shopify.com/s/files/1/0431/9602/2933/files/nowatibopowi.pdf
- https://cdn.shopify.com/s/files/1/0434/8330/0005/files/93830901836.pdf
- https://cdn.shopify.com/s/files/1/0437/8558/4797/files/36213721541.pdf
- https://cdn.shopify.com/s/files/1/0430/2834/9085/files/tejujawaw.pdf
- https://cdn.shopify.com/s/files/1/0431/3926/8774/files/fewimeputaziwo.pdf
- https://cdn.shopify.com/s/files/1/0431/0935/1575/files/real_football_2017_apk_games.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_off0000808a.bin` `7b71e20fb6ca32e9be8f07eddf9d79aaa1db3296ea1ec74d6020fb51737e8d1a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x808A	5420 bytes
`font_01_sfnt_off000092ed.bin` `f5b2167d1491360137a1825c3b766ab3a7a431c8ffdc016a6e6debf10aaa4159`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x92ED	10332 bytes
`font_02_sfnt_off0000b618.bin` `bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB618	16312 bytes

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