PDF malware analysis — malicious · a615594dd43d8d8d

MALICIOUS

PDF

47.5 KB Created: 2020-08-10 23:18:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9ab4bd7bd28dbfc3e023809b1a722d32 SHA-1: 5a2e6c97cd60eb880282df6270009434683c1771 SHA-256: a615594dd43d8d8ddf6be19fa4dbe64f37596cfc59fdb5f4b8e2af61e641892f

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with a primary malicious redirector URL identified as https://ttraff.com/pify?keyword=pathway+bronkopneumonia+pdf. This suggests a phishing or scam attempt using SEO poisoning tactics to drive traffic to malicious infrastructure. No scripts were extracted, but the presence of numerous links and the ML classification strongly indicate malicious intent.

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=pathway+bronkopneumonia+pdf
- http://files.zetachapterdkg.com/uploads/1/3/0/9/130969097/nozefamizarerapuwe.pdf
- http://files.hopeinelgin.com/uploads/1/3/2/6/132681969/3745741.pdf
- http://files.fjhcoinsandstuff.com/uploads/1/3/1/4/131483254/1c39ac1b5a.pdf
- http://files.csd4tech.com/uploads/1/3/0/7/130739116/koxekase_konevoja_xorokesefoned.pdf
- http://files.uwwatersheddynamics.com/uploads/1/3/1/8/131859042/gabupex-kowot.pdf
- https://cdn.shopify.com/s/files/1/0439/1780/3675/files/76779502355.pdf
- https://cdn.shopify.com/s/files/1/0434/0255/9655/files/65113166318.pdf
- https://cdn.shopify.com/s/files/1/0427/6197/8023/files/read_incest_comics.pdf
- https://cdn.shopify.com/s/files/1/0431/1141/5965/files/kimuzelavopibubisej.pdf
- https://cdn.shopify.com/s/files/1/0437/0432/0154/files/icy_tower_on_line.pdf
- https://cdn.shopify.com/s/files/1/0430/0426/4601/files/tapipebutewides.pdf
- https://cdn.shopify.com/s/files/1/0432/8911/6836/files/lawifuxumapilasipef.pdf
- https://cdn.shopify.com/s/files/1/0428/2315/5878/files/playboy_mansion_game.pdf
- https://cdn.shopify.com/s/files/1/0433/5285/0586/files/adobe_reader_for_android_2._3_free_download.pdf
- https://cdn.shopify.com/s/files/1/0435/1678/8900/files/27688907943.pdf
- https://cdn.shopify.com/s/files/1/0437/3181/2504/files/54371020076.pdf
- https://cdn.shopify.com/s/files/1/0434/2520/2325/files/adventures_of_sherlock_holmes_book.pdf
- https://cdn.shopify.com/s/files/1/0427/8393/2582/files/sezobozomokikipel.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_off00007c21.bin` `ce96c03dfa3d0d25f05302ba42400321a326e6b3cc52f46b13c0aa4c71582785`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C21	5468 bytes
`font_01_sfnt_off00008ea0.bin` `36d51addd88e77e8bcd90da18e8bb5bcb2b50f5350dc44ef7cb53f036433956a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8EA0	9920 bytes

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