PDF malware analysis — malicious · d2f5ce0faab8fd1f

MALICIOUS

PDF

43.1 KB Created: 2020-08-04 00:55:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0478f3b28f127ce9f28ce8c7919bf314 SHA-1: adb6e0379a9c67f2b45d9aa236a8b76881988484 SHA-256: d2f5ce0faab8fd1fd7a41bbca572a89deef09378d08b2b1fe2bc43a7ac005bae

150 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to download further 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=past+simple+vs+present+perfect+worksheet+pdf
- http://files.bestofvictoriabc.com/uploads/1/3/0/9/130969811/zuloze.pdf
- http://movise.julesmoderne.com/uploads/1/3/2/8/132814930/nexogeboxap.pdf
- http://files.enduro24.com/uploads/1/3/2/7/132712119/vixafilez-zolotonam.pdf
- http://files.prayerlifemusic.com/uploads/1/3/0/8/130813095/lexupidexefat.pdf
- https://cdn.shopify.com/s/files/1/0433/6222/2232/files/putumobozapisefoxelevur.pdf
- https://cdn.shopify.com/s/files/1/0434/7029/1096/files/volkswagen_jetta_service_manual.pdf
- https://cdn.shopify.com/s/files/1/0436/2931/4206/files/joxafinafewatug.pdf
- https://cdn.shopify.com/s/files/1/0428/9137/8854/files/60635420744.pdf
- https://cdn.shopify.com/s/files/1/0430/1763/3949/files/38972323631.pdf
- https://cdn.shopify.com/s/files/1/0432/0342/8515/files/fupimewifo.pdf
- https://cdn.shopify.com/s/files/1/0434/1186/5751/files/introduction_to_graph_theory_douglas_west.pdf
- https://cdn.shopify.com/s/files/1/0427/6797/4556/files/31809107217.pdf
- https://cdn.shopify.com/s/files/1/0432/6886/6212/files/bovuzoxavo.pdf
- https://cdn.shopify.com/s/files/1/0431/3926/8769/files/visugefizinesuxisuv.pdf
- https://cdn.shopify.com/s/files/1/0433/9705/4631/files/john_deere_955.pdf
- https://cdn.shopify.com/s/files/1/0439/3785/7691/files/adobe_creator_windows_10.pdf
- https://cdn.shopify.com/s/files/1/0431/7901/6360/files/rolukakas.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/files/1/0432/0342/8515/f

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000068ea.bin` `3fb66f374ec8b1d58e34d3b36d6d854ef6c18517e49fadf438534a9e2a1a6a6c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68EA	5612 bytes
`font_01_sfnt_off00007be9.bin` `854713e60df35429155e3540fd33646b5baba15003e848516a9c4b923b65f62a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BE9	10176 bytes

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