Malicious PDF — malware analysis report

Static analysis result for SHA-256 aede5306026d3ac2…

MALICIOUS

PDF

74.7 KB Created: 2021-03-22 16:23:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 250af57a6c2b479e2595d6d633c76c50 SHA-1: 12d14cf98be9de17d59a316bf435e0e089ebd931 SHA-256: aede5306026d3ac2829f60c6562044b85f8ca1940939ff07bec985cc0ab29b01
246 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1204.001 Malicious Link

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains a link farm with numerous external links, many hosted on disposable domains, and specifically impersonates UPS to lure users into clicking a link. The embedded content, though heavily obfuscated, suggests the document's purpose is to facilitate credential phishing by directing users to malicious URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 7

  • 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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://zodijezuworid.weebly.com/uploads/1/3/1/4/131483265/sefutolamewa.pdf.
  • 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://mezovuduw.ru/wix?keyword=ancient+india+geography+video PDF link annotation
    • https://zodijezuworid.weebly.com/uploads/1/3/1/4/131483265/sefutolamewa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454435/normal_601878089f429.pdfIn PDF document text
    • http://leporabev.mywebcommunity.org/how_to_fill_out_petition_for_letters_of_administration_georgia.pdfIn PDF document text
    • http://vizenam.medianewsonline.com/best_magazine_design.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418567/normal_6026e1c7c54a4.pdfIn PDF document text
    • https://cdn.sqhk.co/bebumila/jgjcTSa/toyota_altezza_1gfe_performance_parts.pdfIn PDF document text
    • http://vuzetasavuxoso.mygamesonline.org/asus_m5a97_plus_drivers.pdfIn PDF document text
    • https://bufazojilenove.weebly.com/uploads/1/3/4/6/134639622/7adcb28b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405674/normal_60209211651f6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415052/normal_5ffeb228b3159.pdfIn PDF document text
    • https://cdn.sqhk.co/xokebuzizo/6khgiKA/95556324590.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376849/normal_601b86ea41cad.pdfIn PDF document text
    • https://cdn.sqhk.co/noxisoture/cuiajfX/58279806833.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383573/normal_6035a8b57ff49.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383681/normal_6011a76d84f50.pdfIn PDF document text
    • https://cdn.sqhk.co/nodewanase/hijUhaL/how_to_make_origami_crane_instructions.pdfIn PDF document text
    • https://konilusikiwi.weebly.com/uploads/1/3/3/9/133986353/bagebesapifemus_kosigibun_fivikowetabix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409258/normal_604cfa52d608b.pdfIn PDF document text
    • https://cdn.sqhk.co/zowolanazew/gflhhhg/funny_quotes_for_whatsapp_status_in_english.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371247/normal_5ffa77f957165.pdfIn PDF document text
    • https://fupebabo.weebly.com/uploads/1/3/4/6/134601971/kowofoxozetasowo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jagomizaf.atwebpages.com/88775728099.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.

FilenameKindSourceSize
font_00_sfnt_off0000e663.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE663 5276 bytes
SHA-256: 496d511d24227bd0cf80594a2a1b2b84a39e221366e0933622c63a64ba76eb1e
font_01_sfnt_off0000f861.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF861 10900 bytes
SHA-256: 08a3ab240928410dc9b071438f3d0c0ca2f3b96fb37092ed7436c294417a4bfc

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