PDF malware analysis — malicious · 75cdce2701835258

MALICIOUS

PDF

40.7 KB Created: 2020-08-23 17:52:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b00a8b6a5a057e4c3f4f07334243ad1a SHA-1: 86ca658653ffa63308cd74363bbd2d682bcb0f47 SHA-256: 75cdce270183525861cee6635fbe25bb46ceea0f0d56a7096fd46663fd357f3d

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The link leads to 'https://ttraff.cc/pify?keyword=bowmasters+mod+apk+unlocked+all', suggesting a lure to download potentially malicious software. The PDF also contains a large number of embedded links, many pointing to Shopify domains, indicating a link farm strategy to improve SEO for malicious content. 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.cc/pify?keyword=bowmasters+mod+apk+unlocked+all
- http://files.bullbearkidsbooks.com/uploads/1/3/2/6/132681404/medewesiposade.pdf
- http://xeleke.sailabilitybatemansbay.com/uploads/1/3/2/6/132696067/e3894.pdf
- http://files.en.revesalpins.com/uploads/1/3/0/8/130813409/sivekakodegoraxujok.pdf
- http://gugowuw.honorboundco.com/uploads/1/3/0/8/130813821/f6a284.pdf
- https://cdn.shopify.com/s/files/1/0431/7567/4024/files/letter_of_claim_breach_of_contract_template.pdf
- https://cdn.shopify.com/s/files/1/0435/5624/1557/files/pufixopid.pdf
- https://cdn.shopify.com/s/files/1/0433/2794/6904/files/spider_solitaire_for_pc.pdf
- https://cdn.shopify.com/s/files/1/0435/8170/2303/files/jigaguwobemegawuxut.pdf
- https://cdn.shopify.com/s/files/1/0429/1421/8143/files/ain_t_no_sunshine_dmx.pdf
- https://cdn.shopify.com/s/files/1/0432/2462/9405/files/77417231792.pdf
- https://cdn.shopify.com/s/files/1/0433/0936/7461/files/boralo.pdf
- https://cdn.shopify.com/s/files/1/0430/9044/4445/files/530798828.pdf
- https://cdn.shopify.com/s/files/1/0463/2448/2208/files/88634530308.pdf
- https://cdn.shopify.com/s/files/1/0429/3391/1705/files/47106079655.pdf
- https://cdn.shopify.com/s/files/1/0434/1773/1229/files/books_online_free_download.pdf
- https://cdn.shopify.com/s/files/1/0435/3864/5144/files/vuzakorera.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_off00006099.bin` `e75026c9a0a2d9c8f10515f2610444d53497bdfe145047dc5465bd898dde9ab1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6099	5424 bytes
`font_01_sfnt_off00007300.bin` `d348f1980aa165e565ae6e40df8de0b5cf971f85cde5976fd1ee3370fcdc81bb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7300	10216 bytes

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