PDF malware analysis — malicious · 8e741c393c86c3d7

MALICIOUS

PDF

26.0 KB Created: 2020-11-06 01:47:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e473188a559ba409af0bdb0c907c3933 SHA-1: 0eff711269bf0ddea08ffad713ddaa11150eff9b SHA-256: 8e741c393c86c3d71f4e9d497f9e70f2380c89dfb5a51cb569e2215cdea1897b

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, with one heuristic specifically identifying it as a 'PDF_SEO_LINK_FARM'. The embedded document body text also contains a suspicious URL, suggesting an attempt to manipulate search engine results or redirect users to malicious content. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9985

Heuristics 3

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.
External URI info PDF_URI

PDF contains an external URL action
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://trafficel.ru/aws?keyword=scooby+doo+meets+batman+full+episode
- https://siregudak.weebly.com/uploads/1/3/0/7/130738759/88068fdb6b75.pdf
- https://jugizefabugej.weebly.com/uploads/1/3/4/3/134377355/fukapu.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/xamibudasagas/transparent_painting_techniques.pdf
- https://uploads.strikinglycdn.com/files/cce9ebfe-529e-4d9f-8e46-109428a42e4a/memidisowumolujid.pdf
- https://s3.amazonaws.com/buxoparadazegu/jigiwofakokexu.pdf
- https://uploads.strikinglycdn.com/files/1ed2eb4f-a8dc-4d18-9787-d63b80e4f586/kovut.pdf
- https://s3.amazonaws.com/zalomi/citadel_cronin.pdf
- https://s3.amazonaws.com/mijedusovineti/tuxotumuz.pdf
- https://s3.amazonaws.com/saxefi/what_is_economic_history.pdf
- https://s3.amazonaws.com/pugomonapoxuxe/behavioral_view_of_learning.pdf
- https://s3.amazonaws.com/fokapikow/bayes_theorem_examples.pdf
- https://s3.amazonaws.com/vikukinumet/accident_report_form_child_care.pdf
- https://uploads.strikinglycdn.com/files/7a09cc2f-e00b-4421-8c02-5696db1c5177/gufomarikudetifaregalutib.pdf
- https://s3.amazonaws.com/zetare/income_tax_slab_financial_year_2017-_18.pdf
- http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004fbb.bin` `8d1db53cdbb78079bfef72b34b549932f1aa39629729e9d5d7af7e2576e369f5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4FBB	5552 bytes

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