Malicious PDF — malware analysis report

Static analysis result for SHA-256 edeae422ae4b49c9…

MALICIOUS

PDF

82.2 KB Created: 2021-04-11 06:34:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 0ccbcbf1021f562c9c5f5b922f9ae85a SHA-1: 16645ef2f80a3e5a46b8498db3a83db379bbc19b SHA-256: edeae422ae4b49c96f38b06f28c37a895bc538f6c188295af99c171a4a4dee4a
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a significant number of external links, many pointing to disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery via these links. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jumiwimov.ru/strik?utm_term=how+to+protect+colored+pencil+drawings PDF link annotation
    • http://usesoda.pro/war_of_the_worlds_1953_trailer40f7d.pdfIn PDF document text
    • https://cdn.sqhk.co/zifeduwa/gEoijgc/39293258551.pdfIn PDF document text
    • https://cdn.sqhk.co/kivipemo/gciihgY/luzelak.pdfIn PDF document text
    • http://romeital.space/retizetafusetagarokoms02c6.pdfIn PDF document text
    • https://cdn.sqhk.co/ruzixapudel/ejbBgeT/39431277671.pdfIn PDF document text
    • http://goossyy.online/autocad_2017_keygenv6vfk.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://uploads.strikinglycdn.com/files/314b8325-4196-4b96-adff-84dea7874cd1/62113220151.pdfIn PDF document text
    • https://d25e5d79-f3dc-43ab-8538-58f2f4730235.filesusr.com/ugd/898300_1fdd0242c65841a7a6389b24ec60aa6e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/fed04327-8eb5-4314-9878-7db45218783e/zoled.pdfIn PDF document text
    • https://5ee0d2ad-6486-47ce-ab7d-0e7b2bae4193.filesusr.com/ugd/bc0d1e_94c0497999d049be8d15414d159dda39.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/69518ca6-c217-4479-8d2f-ac726e0bf500/36201582617.pdfIn PDF document text
    • https://e8f98835-b194-42a5-b43f-fe2f29920dd6.filesusr.com/ugd/bf650e_d1db1c12cdfc4057a7cc70b574455bb8.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdedd89f-0495-42ee-bdd9-0b75fd1e9797/zexejusipozi.pdfIn PDF document text
    • https://93dbb2ad-f1e8-4c6c-adfd-2ef134399473.filesusr.com/ugd/df4650_dbecaeef47bc46039a695f6d76bcea70.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/96d09e99-2398-47bc-8bce-7fce205050f8/79939562109.pdfIn PDF document text
    • https://b1394492-4877-47b1-8bf2-e962974baa99.filesusr.com/ugd/3e4b7a_62548e3ce28a4ce2a117ec6fa8ed016c.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/eda7cb9f-0059-4ace-ba19-fdaab39cf492/best_coffee_machine_with_grinder_canada.pdfIn PDF document text
    • https://eb40363d-1d1f-4170-a897-f23f0f433116.filesusr.com/ugd/2a1429_35abf34d04214954b14029a8d6fc459b.pdf?index=trueIn PDF document text
    • https://1f9cfe0c-d655-4514-b58a-75380282e405.filesusr.com/ugd/d31784_4ed76b41d92d4263857b8cc1beab8e19.pdf?index=trueIn PDF document text
    • https://b7953657-6b45-4ea9-9d9d-f701e3f26526.filesusr.com/ugd/45996c_249d96eaa92643cdb057561f2175ae3e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab540414-1128-4b0e-a6fb-c31ac657fb7b/what_is_the_displacement_x__x_of_the_particle.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.

FilenameKindSourceSize
font_00_sfnt_off0000f7c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7C9 5080 bytes
SHA-256: 3040b4a9c31f7dd3b2c347b47ab640d2255056c7ef52cb81e0ea4b43c39e9fc6
font_01_sfnt_off00010926.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10926 10524 bytes
SHA-256: 64c3c20497b99f7dc274ec6b8bbff03ab3c9fb3863f6a17024f81b10bd633b99
font_02_sfnt_off00012d2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D2B 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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