PDF malware analysis — malicious · bc1d3680063e8d76

MALICIOUS

PDF

89.7 KB Created: 2021-03-16 13:13:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: 03ede8815faab049c26303f783b6ecb5 SHA-1: 8fa31c0370a547ea797c6099e2e2fce0b673dacf SHA-256: bc1d3680063e8d761ea07709c660faa3090110dee9667b90224a2b317fd0bfc7

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains a large number of external links, many of which are likely part of a link farm or phishing scheme, directing users to URLs such as https://leonvi.ru/wix?keyword=ancient+dragon+bone+skyrim. While no scripts were explicitly extracted, the PDF structure and the presence of numerous external links suggest it is designed to redirect users to potentially harmful websites, possibly for credential harvesting or further malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9994

Heuristics 5

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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
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://leonvi.ru/wix?keyword=ancient+dragon+bone+skyrim PDF link annotation
- https://static.s123-cdn-static.com/uploads/4369630/normal_5ff34722d0e75.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389797/normal_602a2595eed1a.pdfIn PDF document text
- https://vavinaxedekofew.weebly.com/uploads/1/3/0/9/130969509/4399354.pdfIn PDF document text
- https://linoratu.weebly.com/uploads/1/3/4/4/134403550/581eb80230f52f.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/tamovagag/personal_information_synonyms.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f253f0c7-892d-4e1a-a092-1337e7a2902e/aprender_ingles_para_nios_de_4_a_5_aos.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/63fb3e65-996f-4888-9672-7fe84ef06cf1/uniden_6.0_phone_manual.pdfIn PDF document text
- https://s3.amazonaws.com/tokit/badijolepibix.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/91987b99-ca3c-4cce-a7ac-31ece5853a26/taco_bell_power_bowl_nutrition_no_rice_no_beans.pdfIn PDF document text
- https://s3.amazonaws.com/defujo/car_racing_android_game_phoneky.pdfIn PDF document text
- https://s3.amazonaws.com/pukaridimupo/lactase_enzyme_simulation_answers.pdfIn PDF document text
- https://s3.amazonaws.com/nemafu/idle_balls_hack_apk.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/67dadb95-9c54-468f-a00f-2666f514c2df/31634115824.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/40779fa5-76a9-4392-b896-23556f3c6bd7/to_determine_textual_evidence_look_for.pdfIn PDF document text
- https://s3.amazonaws.com/solonebosop/92395089980.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4cb6a0d2-5ccb-4bca-a0ca-17a6f10ce52f/why_enter_into_a_contract.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/21314633-1449-487b-b703-01d2c3432fe2/how_to_organize_community_easter_egg_hunt.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/60c24b93-ab6a-4829-94ee-926559816cef/jekaxosobojedivefikeviri.pdfIn PDF document text
- https://s3.amazonaws.com/jeworurowam/91470650948.pdfIn PDF document text
- https://s3.amazonaws.com/lodazojamuva/how_do_you_descale_a_keurig_coffee_pot_with_vinegar.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0972d389-06fc-43aa-a061-f4c37cf890c3/christian_pre_marriage_counseling_online.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3b555e58-d444-428e-8a27-7eab198ba9b2/81596624805.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00010ecd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10ECD	5312 bytes
SHA-256: `f82058e345815ab052b4075380cd1898b7146a449ac26a3bca8afa848ecd36fc`
`font_01_sfnt_off000120be.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x120BE	12916 bytes
SHA-256: `b67061524bce321af01068bcdaf227fba8e304a39f13441fa4e4c15d08291909`
`font_02_sfnt_off00014b3e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14B3E	4324 bytes
SHA-256: `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`

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