PDF malware analysis — malicious · 99d3e1e03c73ba6c

MALICIOUS

PDF

85.0 KB Created: 2021-03-22 14:33:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07

MD5: 60178303457a53935afcafef1f56dc30 SHA-1: 18a0498ebe10682bb07829912c94d864dd81bcd5 SHA-256: 99d3e1e03c73ba6c42e0df0cf212644cbc9216bb88cdf5803d7e9fb3f8b6a0ad

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a lure related to a Minecraft mod, directing users to a suspicious URL. Heuristics indicate a link farm and a phishing/trojan detection by ClamAV. While no scripts were explicitly extracted, the PDF structure and external links suggest an attempt to redirect users to malicious content, likely for phishing or malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

Heuristics 5

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
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://mezovuduw.ru/wix?keyword=wings+mod+minecraft+1.12 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4458122/normal_60475fcfd4aaa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4467285/normal_5fd37fb6cc89c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407303/normal_60362bc7d1a2d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4454180/normal_6004a16e4bbce.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4467975/normal_60089e16d6c75.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4422148/normal_603602ebddcf0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4504839/normal_60198d4d7f98d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4393359/normal_5fed74055344f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418755/normal_6054f6fed3dd5.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://0ecef3a8-5193-4df1-8dcb-1b7dd0f2be2a.filesusr.com/ugd/e6092c_f6d7e69b60e548279ad2c50b9cc5e6c2.pdf?index=trueIn PDF document text
- https://bef89f6e-6323-4b84-ad9d-a44490bfcc4f.filesusr.com/ugd/96768c_1c055db9f87c4cedb190ed26af8f1063.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/nijudow/maplestory_shadower_guide_2019.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cfa20b1a-f0ee-47d8-8966-740a40e5dc2c/clayton_christensens_1997_book_the_innovators_dilemma.pdfIn PDF document text
- https://s3.amazonaws.com/zolerazowubow/josedanifofakawegivajopa.pdfIn PDF document text
- https://s3.amazonaws.com/baxunaf/rasokobidasixaforu.pdfIn PDF document text
- https://s3.amazonaws.com/fizufapu/what_did_bruce_lees_son_die_of.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d1e18893-84c1-46a1-9659-aa97154f4112/the_journal_of_international_management_studies_impact_factor.pdfIn PDF document text
- https://s3.amazonaws.com/kifutizijebuj/leatherwork_merit_badge_worksheet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/64ab2fb7-864f-43d8-a9c5-c8b5a7c80ad7/14661736350.pdfIn PDF document text
- https://s3.amazonaws.com/tawosutosuxi/sigugip.pdfIn PDF document text
- https://s3.amazonaws.com/muvevanepen/81056884957.pdfIn PDF document text
- https://s3.amazonaws.com/ganubifirigevi/platform_block_heel_shoes_uk.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f4f9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF4F9	5536 bytes
SHA-256: `c2d8a3a075282883fa3709aa3a5b10573a4cd80d147b268756fa43013aad0f4f`
`font_01_sfnt_off000107d3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x107D3	11700 bytes
SHA-256: `df52fb5976251187cdb4c498e899b0525070f1cb2f8f0fa1a27584ed0e49ff07`
`font_02_sfnt_off0001302f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1302F	16064 bytes
SHA-256: `8ce0575abc6f686af3c1393089841c21814f5c4838d5adbe0d649219e58da802`

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