PDF malware analysis — malicious · 6c5d18aa13b9857e

MALICIOUS

PDF

117.6 KB Created: 2020-12-24 12:37:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11

MD5: 5b2388cec5a7485b961b0c0b6d80ae7d SHA-1: 24c2ae2872810f9e17380c272443c92fe3c00e26 SHA-256: 6c5d18aa13b9857edc673c488dbd9b0ee7e02cacf83d37a282bcf18abb2f0efd

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, with a critical heuristic identifying a link farm pointing to various PDF files. One of the primary URLs, 'https://traffnew.ru/aws?utm_term=award+template+certificate', is suspicious and likely leads to a phishing or malware distribution site. The ClamAV detection and ML classifier further indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

Nyx PDF Classifier malicious score 0.9747

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://traffnew.ru/aws?utm_term=award+template+certificate PDF link annotation
- https://xekekulok.weebly.com/uploads/1/3/1/8/131857590/1106546.pdfIn PDF document text
- https://fijefozumomaba.weebly.com/uploads/1/3/4/4/134491855/556ae396c30.pdfIn PDF document text
- https://giboramogu.weebly.com/uploads/1/3/4/6/134627050/fodinibomev-zisaju.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/wegemebufojafak/luridifalokeraposage.pdfIn PDF document text
- https://s3.amazonaws.com/kovezux/macquarie_uni_course_guide.pdfIn PDF document text
- https://s3.amazonaws.com/wefemabeni/pilates_reformer_exercises_for_beginners.pdfIn PDF document text
- https://s3.amazonaws.com/midizaxopazeji/35882617874.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a23a3471-b105-4e74-99e9-a11f6ef34493/infinite_stratos_episode_1_anime_planet.pdfIn PDF document text
- https://s3.amazonaws.com/juzinaramip/perudavidale.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6f52cb4a-1bb7-4098-833f-f8a262d02b10/fortnite_hack_apk_pc.pdfIn PDF document text
- https://s3.amazonaws.com/levovod/29432722262.pdfIn PDF document text
- https://s3.amazonaws.com/wulotugadag/jizoxab.pdfIn PDF document text
- https://s3.amazonaws.com/geradi/share_purchase_agreement_template_word.pdfIn PDF document text
- https://s3.amazonaws.com/damevusom/87442265053.pdfIn PDF document text
- https://s3.amazonaws.com/xonobijikivo/kt_tape_ankle_sprain.pdfIn PDF document text
- https://s3.amazonaws.com/lusabifef/fidimodanitapegitikipesaw.pdfIn PDF document text
- https://s3.amazonaws.com/lovomijelun/hyphen_worksheet_for_grade_4.pdfIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0001badf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1BADF	5204 bytes
SHA-256: `fcaf39c9bac4e9d3cb3af8bc649b819cc8d70d365835b4939079077f6392ed6c`

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