PDF malware analysis — malicious · f579e49d365ed51b

MALICIOUS

PDF

45.0 KB Created: 2020-08-06 10:10:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a6d0eff04beeb54f0f1503c7a0cae2bf SHA-1: 056a14d8cf676ca3e7eb1fa23a81e6b71f0a53e5 SHA-256: f579e49d365ed51ba3641a60e443e6c849b380afb48fc18c5db0b09b269c8f8e

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that is also present in the heuristic firing. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.ru/pify?keyword=ages+problems+shortcuts+and+tricks+pdf
- http://files.rams-doc.co.uk/uploads/1/3/0/7/130740149/mepev.pdf
- http://files.studiodeceramiqueartvm.com/uploads/1/3/1/4/131409498/1b9e6fe.pdf
- http://files.metalmeltdown.com/uploads/1/3/0/7/130775755/36f932b68a.pdf
- https://cdn.shopify.com/s/files/1/0431/7937/6798/files/tom_petty_discography_download.pdf
- https://cdn.shopify.com/s/files/1/0429/3050/3846/files/borojuboj.pdf
- https://cdn.shopify.com/s/files/1/0434/1478/2103/files/paladomudes.pdf
- https://cdn.shopify.com/s/files/1/0429/0894/2492/files/shotgun_reloading_data.pdf
- https://cdn.shopify.com/s/files/1/0430/5325/2757/files/ganimo.pdf
- https://cdn.shopify.com/s/files/1/0433/0697/5382/files/87497262102.pdf
- https://cdn.shopify.com/s/files/1/0434/5951/0425/files/moviestarplanet_hack_no_survey_2016.pdf
- https://cdn.shopify.com/s/files/1/0435/3431/9776/files/watazepaza.pdf
- https://cdn.shopify.com/s/files/1/0430/0367/4785/files/povotinatuditab.pdf
- https://cdn.shopify.com/s/files/1/0427/6482/8838/files/github_install_git.pdf
- https://cdn.shopify.com/s/files/1/0429/2483/4982/files/nurixiloti.pdf
- https://cdn.shopify.com/s/files/1/0431/9330/3204/files/49675760249.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_off00006280.bin` `2e1c7d8a9182ef2ac7ebe8761add3c1d888a511c6ca415d14f6035aef6a44e3c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6280	5644 bytes
`font_01_sfnt_off0000758c.bin` `101cf86c7c39aef31486589cf5a6edbc50444acc8774bff1c50871c63db8c48b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x758C	10372 bytes
`font_02_sfnt_off000098e9.bin` `ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x98E9	4324 bytes

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