PDF malware analysis — malicious · f3e7888a881ae9a4

MALICIOUS

PDF

43.9 KB Created: 2020-08-27 22:18:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c3860af4f0f339ece0dd8fc80532ef76 SHA-1: cf693532e65641a38459195d83b5431dd27b5b99 SHA-256: f3e7888a881ae9a448a04b0a95de362de8f110ab43634847ebf440727ffcbb2f

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector at 'https://ttraff.ru/pify?keyword=a+walk+to+remember+book+pdf'. This suggests the document is designed to trick users into clicking the link under the guise of downloading a book, leading them to malicious infrastructure. No scripts were extracted from this sample.

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=a+walk+to+remember+book+pdf
- http://tuvefej.thomas-webb-arts.com/uploads/1/3/1/3/131398064/lonowuraxerure.pdf
- http://files.corporateartvault.com/uploads/1/3/0/7/130740623/xotofa-kawut.pdf
- http://files.isr2020.org/uploads/1/3/0/7/130775405/furegezusedenaf.pdf
- http://welodak.generationxgoesglobal.com/uploads/1/3/2/6/132695643/jofepoxidoma_sogekomumu_ludeliz_vuroju.pdf
- https://cdn.shopify.com/s/files/1/0431/0581/2629/files/19265660277.pdf
- https://cdn.shopify.com/s/files/1/0462/0081/5774/files/clear_acrylic_sheet_singapore.pdf
- https://cdn.shopify.com/s/files/1/0431/7147/9713/files/59129390175.pdf
- https://cdn.shopify.com/s/files/1/0432/8570/8953/files/rigosixixifanomofetiseb.pdf
- https://cdn.shopify.com/s/files/1/0429/4275/9071/files/basemesowavof.pdf
- https://cdn.shopify.com/s/files/1/0454/5645/7880/files/17233491136.pdf
- https://cdn.shopify.com/s/files/1/0433/3505/7559/files/achyutam_keshavam_krishna_damodaram_audio_song.pdf
- https://cdn.shopify.com/s/files/1/0429/6923/5619/files/faderulanuf.pdf
- https://cdn.shopify.com/s/files/1/0434/6285/2761/files/singer_model_66.pdf
- https://cdn.shopify.com/s/files/1/0432/0742/6216/files/26908766458.pdf
- https://cdn.shopify.com/s/files/1/0462/4354/5237/files/delinaroraret.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_off0000624e.bin` `6fbe7e2622aa6e5ad00a06eee3b49f44d544e4434c9d4bfdcdbb088d8c9acc38`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x624E	4928 bytes
`font_01_sfnt_off0000731f.bin` `dcfd285e2c7a17fba136dd46b5121e29c23d8e17689f16764095173b763ea4e8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x731F	9884 bytes
`font_02_sfnt_off000094ee.bin` `7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x94EE	4324 bytes

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