PDF malware analysis — malicious · 2f884cf625b27610

MALICIOUS

PDF

36.2 KB Created: 2020-08-23 21:27:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: af1876eea5c203d65bc988c891c20be2 SHA-1: 78231b92ac0ebed97e4c7cdaf742d22883c9ad92 SHA-256: 2f884cf625b2761091e64d0386dd85f9e48171dd82df82e91d56b61d200174fe

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL and a reference to a "sad alone picture", suggesting a social engineering lure. Additionally, the PDF was flagged by an ML classifier and contains a link farm, indicating a malicious intent to redirect users to potentially harmful content.

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=sad+alone+picture
- http://files.fancyshmancynotes.com/uploads/1/3/1/3/131398323/8898633.pdf
- http://vepoket.njgraniteconstruction.com/uploads/1/3/0/7/130739024/c7c7b20.pdf
- http://files.road-iq.com/uploads/1/3/0/7/130776487/pezewagusuranutog.pdf
- http://files.tutormenick.com/uploads/1/3/2/6/132682851/1845549.pdf
- http://ruruwig.weeyasmith.com/uploads/1/3/1/4/131407178/xurajavimur_jesosasobe_dupikagugofi_dudexilukejiza.pdf
- https://cdn.shopify.com/s/files/1/0437/9744/6816/files/pojumisetogeteru.pdf
- https://cdn.shopify.com/s/files/1/0465/5126/9526/files/58621363770.pdf
- https://cdn.shopify.com/s/files/1/0427/8360/4903/files/22747697195.pdf
- https://cdn.shopify.com/s/files/1/0431/8386/6007/files/ximawawidudid.pdf
- https://cdn.shopify.com/s/files/1/0432/5598/8387/files/dc_tv_universe_timeline_guide.pdf
- https://cdn.shopify.com/s/files/1/0438/7074/8827/files/calculation_colour_by_numbers_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0437/7450/9213/files/zisemesa.pdf
- https://cdn.shopify.com/s/files/1/0463/7389/6353/files/fuxixufejomoletixiziranaj.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54748680829.pdf
- https://cdn.shopify.com/s/files/1/0433/6464/7077/files/morilalizafu.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_off000046aa.bin` `cbf12aa9ae685b53177638dadab171f83db27953347109cddb12827a5eaba070`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x46AA	4872 bytes
`font_01_sfnt_off00005739.bin` `e6f277534820806639ad055aada44d7d72def335436d18170715f55eeb877642`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5739	8988 bytes
`font_02_sfnt_off000075e8.bin` `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x75E8	4324 bytes

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