PDF malware analysis — malicious · c6eb32f991feba57

MALICIOUS

PDF

75.7 KB Created: 2021-03-20 02:08:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0c323bbe6311aad47604747af4cf0883 SHA-1: 7a3df032ced657c990c3cce1b4f3a35f2530388e SHA-256: c6eb32f991feba579b39854421c407f97b32c612d38b50cba59d4668a5e24d83

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, forming a link farm, and is flagged by ClamAV as a phishing trojan. The document body, though heavily obfuscated, suggests a lure related to educational materials. The presence of multiple external URLs indicates an attempt to redirect the user to potentially malicious sites for further exploitation or phishing.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 5

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.
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://kuzutuzo.ru/wix?keyword=california+history+textbook+4th+grade
- https://fewanisip.weebly.com/uploads/1/3/2/7/132712603/lowigobatigowek.pdf
- http://nukuxarigikuxez.iblogger.org/bootstrap_4_dashboard_theme.pdf
- https://felipivi.weebly.com/uploads/1/3/1/8/131856333/1043868.pdf
- http://excschool.ru/vidovujujedz5ftr.pdf
- http://bukapim.mywebcommunity.org/48939939957.pdf
- http://instgramcopyrightdispute.com/25645669263onieh.pdf
- http://axacheat4.xyz/equalizer_tv_series_episode_guide41k9q.pdf
- http://begemotiks.fun/root_word_mitosis_meaninge2r8e.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/telasebisu/betijevevetaliniwugat.pdf
- http://gevosumol.epizy.com/gracie_s_theme_piano_sheet_music_free.pdf
- https://s3.amazonaws.com/fedure/hero_honda_pleasure_carburetor_tuning.pdf
- http://gozidonozali.myartsonline.com/zepuku.pdf
- http://rorazizaxaf.atwebpages.com/11092333190.pdf
- https://s3.amazonaws.com/tirimofufemukat/ximador.pdf
- https://s3.amazonaws.com/sifawekujiki/current_affairs_quiz_july_2019_with_answers.pdf
- https://s3.amazonaws.com/jijumupade/diamond_stud_earrings_size_guide.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/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e9e0.bin` `7f6a75be50a549a5e9cd2b0aac9201df5c0ae5e60e8710faaffdfa906569e227`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE9E0	5536 bytes
`font_01_sfnt_off0000fcc5.bin` `f143f9284526e9c2de7109679b0285452edfec7bf54cd48ded6245d70416d3bb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFCC5	10976 bytes

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