PDF malware analysis — malicious · d27793fa7b66c6aa

MALICIOUS

PDF

91.5 KB Created: 2021-03-20 02:23:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21

MD5: 048ad658ff9a0f2551d1327748162255 SHA-1: 5e18e757b8e73c7707e85f9b944e2d4f1d6d366b SHA-256: d27793fa7b66c6aaeeea61551668d23308fe39dee18568c5ea27339f3248358a

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and ML classifiers, and exhibits characteristics of a link farm. It contains numerous external URIs, including one pointing to 'baarspo.ru', suggesting an attempt to redirect users to potentially malicious content. The presence of many links, some pointing to S3 buckets with seemingly benign filenames, indicates a tactic to obscure the true malicious intent or to appear as a legitimate resource aggregator.

Machine Learning

Nyx PDF Classifier malicious score 0.7465

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://baarspo.ru/award?keyword=bloch+s+theorem+pdf PDF link annotation
- https://rarejiwu.weebly.com/uploads/1/3/1/6/131606055/c42f5.pdfIn PDF document text
- http://lagulesuko.medianewsonline.com/29372636412.pdfIn PDF document text
- http://poposiruta.mywebcommunity.org/what_to_write_on_verification_of_property_condition.pdfIn PDF document text
- https://wivozodibadire.weebly.com/uploads/1/3/0/7/130775536/timipikijit_xixuwej_nebemetafi.pdfIn PDF document text
- https://davabodijesofid.weebly.com/uploads/1/3/4/4/134474123/jixataribega.pdfIn PDF document text
- https://s3.amazonaws.com/zerepuzuze/zakaxipuxexisakigenab.pdfIn PDF document text
- https://s3.amazonaws.com/fowikorejodi/the_passive_present_and_past_simple_worksheets.pdfIn PDF document text
- https://s3.amazonaws.com/kugelilizibuwum/ct_guided_fnac_test_cost_in_bangladesh.pdfIn PDF document text
- https://s3.amazonaws.com/jijumupade/besogefiba.pdfIn PDF document text
- https://s3.amazonaws.com/vukusa/bluetooth_driver_installer_windows_7.pdfIn PDF document text
- https://s3.amazonaws.com/tanapilamaxi/chicago_pd_episode_guide_2018.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/db965ab3-46a8-4173-b2bb-f775492e4d1d/43831979124.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/429f6ccd-d9f4-4f75-bf60-4e82eae33185/michael_pollan_in_defense_of_food_quotes.pdfIn PDF document text
- https://s3.amazonaws.com/fuwuzerijofa/what_are_the_characteristics_of_data_warehousing.pdfIn PDF document text
- https://s3.amazonaws.com/wapabefizosumi/aircraft_design_process.pdfIn PDF document text
- https://s3.amazonaws.com/gedexim/how_to_treat_a_woman_quotes_tumblr.pdfIn PDF document text
- https://s3.amazonaws.com/bikikanafopavu/noverojumamisiren.pdfIn PDF document text
- https://s3.amazonaws.com/zidenigad/apple_iphone_5c_32gb_price_in_bangladesh.pdfIn PDF document text

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