PDF malware analysis — malicious · 1e2d3c611463e651

MALICIOUS

PDF

43.1 KB Created: 2020-08-06 05:38:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bf90343b640e2cc274b33101a1ed9d30 SHA-1: 2f9959606331a3f1a8ae3f92a4f48262ae0a07c2 SHA-256: 1e2d3c611463e6516edf207cea57fa6c9210d04f1dc33ea61d029f6c5f416db9

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, many of which point to potentially malicious redirectors or unknown domains. One critical heuristic indicates a direct link to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the same malicious URL, suggesting the primary intent is to lure the user into clicking this link, likely leading to a further stage of infection.

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=mathematics+iq+questions+pdf
- http://seborobuz.coldwaterflowers.net/uploads/1/3/1/4/131437604/5194167.pdf
- http://files.monicasscarfs.com/uploads/1/3/1/6/131607054/zoziwadem.pdf
- http://files.ornamentmediang.com/uploads/1/3/0/7/130775980/pezimezuvasu.pdf
- http://rizog.4thdvpanecs.com/uploads/1/3/1/4/131437736/bdf0e867740d.pdf
- https://cdn.shopify.com/s/files/1/0435/0659/8040/files/water_supply_and_pollution_control_free.pdf
- https://cdn.shopify.com/s/files/1/0431/1266/1152/files/file_b_ln_ngc.pdf
- https://cdn.shopify.com/s/files/1/0431/9592/4640/files/anguttara_nikaya_indonesia.pdf
- https://cdn.shopify.com/s/files/1/0436/6611/2662/files/364241515.pdf
- https://cdn.shopify.com/s/files/1/0437/3191/0821/files/fojina.pdf
- https://cdn.shopify.com/s/files/1/0440/3416/2853/files/building_construction_file_download.pdf
- https://cdn.shopify.com/s/files/1/0428/5038/6079/files/dunoxiwumavinorowavu.pdf
- https://cdn.shopify.com/s/files/1/0432/8787/1646/files/veridakubilozanes.pdf
- https://cdn.shopify.com/s/files/1/0441/1277/3272/files/41248508968.pdf
- https://cdn.shopify.com/s/files/1/0435/2701/2507/files/windows_live_messengerhotmail.pdf
- https://cdn.shopify.com/s/files/1/0434/2425/2055/files/17219997237.pdf
- https://cdn.shopify.com/s/files/1/0431/1010/5255/files/67935376092.pdf
- https://cdn.shopify.com/s/files/1/0429/5199/9637/files/kadorovazuwu.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_off000069e4.bin` `27f9b90f32bbc1aaf177e022a94be1b7e1f234c7160cb2c5250ce698e2830bf5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x69E4	5396 bytes
`font_01_sfnt_off00007c29.bin` `f695b6a373019749126018b26f97708ecbfb55f76a6885773a90b42bc4e6a2f0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C29	10404 bytes

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