PDF malware analysis — malicious · b425680258512da5

MALICIOUS

PDF

41.2 KB Created: 2020-07-31 18:44:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a53e84db91e37278b7dadd5224c29b4f SHA-1: 74497604510e565662243269a750b89fcc1ef747 SHA-256: b425680258512da5035bfd9544f294caa4a3c91c3c41b7bc5c452b0125872e3a

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file exhibits characteristics of a link farm, embedding numerous links to other PDF documents hosted across various domains. One of these links directs to a known malicious redirector, ttraff.com, which is likely used to obscure the final malicious destination. The ML classifier also strongly flagged this PDF as malicious. The presence of a link farm and a malicious redirector suggests an attempt to distribute malicious content or phish users.

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=omc+throttle+control+manual
- http://files.acuqest.com/uploads/1/3/0/7/130739662/1614402.pdf
- http://files.makeshiftcoaching.com/uploads/1/3/2/6/132681976/7271237.pdf
- http://files.trr174.org/uploads/1/3/1/0/131071157/jirefeboruw.pdf
- http://files.nancyguildbendall-art.com/uploads/1/3/2/6/132681545/e6db21.pdf
- https://cdn.shopify.com/s/files/1/0435/4398/6340/files/45190585996.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/palafasejuzanuz.pdf
- https://cdn.shopify.com/s/files/1/0430/4207/8877/files/40360557734.pdf
- https://cdn.shopify.com/s/files/1/0432/2826/6654/files/surojunaduzonuro.pdf
- https://cdn.shopify.com/s/files/1/0434/3165/7621/files/togizujuxifuvelokuxuga.pdf
- https://cdn.shopify.com/s/files/1/0429/6966/1589/files/sujelanarawabumopudurubid.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65069223210.pdf
- https://cdn.shopify.com/s/files/1/0434/2117/1864/files/74713330537.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wurawosupamajo.pdf
- https://cdn.shopify.com/s/files/1/0434/2163/0631/files/2538918855.pdf
- https://cdn.shopify.com/s/files/1/0437/0812/1242/files/ridesanejavaz.pdf
- https://cdn.shopify.com/s/files/1/0437/3712/0933/files/xofojowaripixunise.pdf
- https://cdn.shopify.com/s/files/1/0431/6394/3067/files/29162940375.pdf
- https://cdn.shopify.com/s/files/1/0439/1501/8392/files/33058778838.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_off0000645d.bin` `79045f0f37806fe3ea2726c2c9d333f1798f08ce9b4a645312dcf7cce6b9215f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x645D	4888 bytes
`font_01_sfnt_off000074ce.bin` `d3c07359936d5b6f16d87eb831e6f8ac507af2b43325e8552303fd20edc26900`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x74CE	10344 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.