PDF malware analysis — malicious · 3c69ae1cfb1b6956

MALICIOUS

PDF

76.6 KB Created: 2021-01-11 05:23:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11

MD5: f9f7f29bf13c86396a8fd25c742eb492 SHA-1: c8bb0112430b68d8bd02d8dabffe13fbf24964c2 SHA-256: 3c69ae1cfb1b6956506540d5014aaaa8d18edc5e0583ae211901d2fc41b6cce0

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document detected as malicious by ClamAV and an ML classifier. It contains an embedded URL pointing to 'trafftec.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'Aztec worksheets ks2', indicating a targeted approach.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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://trafftec.ru/123?utm_term=aztec+worksheets+ks2 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4368760/normal_5fa0ecf200cac.pdfIn PDF document text
- https://site-1168447.mozfiles.com/files/1168447/rugewuzopiwomaxa.pdfIn PDF document text
- https://site-1177982.mozfiles.com/files/1177982/50749235762.pdfIn PDF document text
- https://site-1167931.mozfiles.com/files/1167931/lalixewudekofa.pdfIn PDF document text
- https://site-1176370.mozfiles.com/files/1176370/14118963972.pdfIn PDF document text
- https://site-1171454.mozfiles.com/files/1171454/piano_key_names_notes.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4465908/normal_5febe894012ae.pdfIn PDF document text
- https://site-1171554.mozfiles.com/files/1171554/twitter_shut_down_today.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/wazotojemov/skull_mp3_downloader_app.pdfIn PDF document text
- https://s3.amazonaws.com/wujapu/human_anatomy_8th_edition_marieb.pdfIn PDF document text
- https://s3.amazonaws.com/kotenu/the_school_for_good_and_evil_book_2.pdfIn PDF document text
- https://s3.amazonaws.com/rerinago/69632547394.pdfIn PDF document text
- https://s3.amazonaws.com/wusone/71754768059.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ef32.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEF32	4972 bytes
SHA-256: `f3dec0c94a90bb378582b9a5621cf4ece9a7623745fa046e9816507c8014027a`
`font_01_sfnt_off0001003a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1003A	10616 bytes
SHA-256: `51f7449c11decf4103afbf90436736fb362506ea46ffead789fecb9d05e1bf2b`

Open this report in the interactive analyzer, or submit your own file for analysis.