PDF malware analysis — malicious · d268eb15d2be277b

MALICIOUS

PDF

44.8 KB Created: 2020-07-31 18:12:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9bb82ed4a9c9b2dd8b36e5bf8ae0bfcf SHA-1: f9a23d4fc733111f276139ab5c60a4f05b718d67 SHA-256: d268eb15d2be277b774d5f0304a4d60831828971a92c957074af1b5365e6ea47

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a link farm and a malicious redirector URL, suggesting it is designed to lure users to potentially malicious content. The primary malicious URL identified is https://ttraff.com/pify?keyword=vce+exam+simulator+crack, which is likely used to distribute further malware or phishing content. The document body, though heavily obfuscated, contains references to 'Vce exam simulator crack', reinforcing the lure. The ML classifier strongly flagged this PDF as malicious.

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=vce+exam+simulator+crack
- http://files.roxwind.com/uploads/1/3/1/3/131384101/e3320aa.pdf
- http://files.aldersgatebutte.org/uploads/1/3/1/4/131453245/4959187.pdf
- http://files.srabonikar.com/uploads/1/3/1/3/131398475/d03c75cf66f294.pdf
- http://files.bonnetcatering.com/uploads/1/3/0/7/130776484/ba93c2a18b.pdf
- https://cdn.shopify.com/s/files/1/0429/1582/3772/files/97627954566.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nitupalakisotubawu.pdf
- https://cdn.shopify.com/s/files/1/0428/2331/9715/files/33771649107.pdf
- https://cdn.shopify.com/s/files/1/0438/1805/7885/files/78890073259.pdf
- https://cdn.shopify.com/s/files/1/0435/0319/0180/files/46958116595.pdf
- https://cdn.shopify.com/s/files/1/0438/2598/7734/files/vitufumoguxujaliwowuwus.pdf
- https://cdn.shopify.com/s/files/1/0439/1626/3592/files/69854159297.pdf
- https://cdn.shopify.com/s/files/1/0431/6987/4080/files/9896768963.pdf
- https://cdn.shopify.com/s/files/1/0430/6957/1233/files/besevul.pdf
- https://cdn.shopify.com/s/files/1/0431/5417/8216/files/boxibimevonozu.pdf
- https://cdn.shopify.com/s/files/1/0433/8748/6358/files/fizalakekejeliroguw.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_off00006931.bin` `d19ececa2fb1a1ea8470f77036ab1e493d115609a9f2b49aaad2c87c9d1c3ed9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6931	5044 bytes
`font_01_sfnt_off00007a40.bin` `21a7146106e2ad29a4dcc6aa55cee169416400570e2b3d493b6d071cb256f2f3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A40	1936 bytes
`font_02_sfnt_off00008381.bin` `a267f843ddbb275518d5efbac02dfd20fd5030ee0bbb183b7ff407e2c5c3551e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8381	9944 bytes

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