Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b6f14051a713f63…

MALICIOUS

PDF

77.8 KB Created: 2021-03-29 02:02:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 3429ec0f9d305f93ff0e19d3f7448ec3 SHA-1: b2a2945cbcedfe3971b6274f7aae8485fb6327e6 SHA-256: 6b6f14051a713f63d4f3f4c66c7b7a660b498cd33a7cc17b9b791e4dc1a11781
186 Risk Score

Malware Insights

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

The PDF document contains numerous external links, many pointing to disposable hosting, suggesting a link farm designed to drive traffic to potentially malicious sites. The presence of a URL related to "gardenscapes cheats no human verification" indicates a lure for users, likely for phishing or scam purposes. While no scripts were explicitly extracted, the PDF structure and extensive link farm heuristics strongly suggest malicious intent, possibly involving embedded JavaScript for redirection or exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xezojetit.ru/wix?keyword=gardenscapes+cheats+no+human+verification PDF link annotation
    • https://sererepe.weebly.com/uploads/1/3/3/9/133999843/rumalexofeg.pdfIn PDF document text
    • https://vebunigujop.weebly.com/uploads/1/3/4/3/134367951/nafugafuzisupimojab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383698/normal_6008ce307dfac.pdfIn PDF document text
    • https://gusemotasejodab.weebly.com/uploads/1/3/2/7/132741535/c876caa75f19279.pdfIn PDF document text
    • http://larebalin.mypressonline.com/ikea_malm_full_bed_slats.pdfIn PDF document text
    • http://putededojijubo.iblogger.org/75367452273.pdfIn PDF document text
    • https://cdn.sqhk.co/rizuwevize/e5XHt4G/download_game_bounce_master_mod.pdfIn PDF document text
    • http://ropisunofo.mygamesonline.org/40k_9th_edition_full_rulebook.pdfIn PDF document text
    • https://fumirufax.weebly.com/uploads/1/3/1/8/131856188/2bc2671.pdfIn PDF document text
    • https://bododomeliba.weebly.com/uploads/1/3/1/4/131408614/fafujuwupobivuzolusa.pdfIn PDF document text
    • https://bixarina.weebly.com/uploads/1/3/1/0/131069915/gokedi.pdfIn PDF document text
    • https://cdn.sqhk.co/vumuwilaj/ugcnibj/8136760146.pdfIn PDF document text
    • https://xizenajagixofus.weebly.com/uploads/1/3/4/6/134657686/db7bbf93d51.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485309/normal_6060fff529843.pdfIn PDF document text
    • https://gavuzolarot.weebly.com/uploads/1/3/4/4/134458525/34f166ab9e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bawaluzobadomi.epizy.com/fenolivazemixowomuz.pdfIn PDF document text
    • http://pikubub.onlinewebshop.net/53070786234.pdfIn PDF document text
    • http://bituwevemexeku.rf.gd/ashton_kutcher_brother_michael.pdfIn PDF document text
    • http://duribolatajofa.atwebpages.com/73639277170.pdfIn PDF document text
    • http://nowimirozox.atwebpages.com/wifikejarinowunonufekude.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_off0000f221.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF221 5456 bytes
SHA-256: 9db05054cbffa6a6687ba1c2ccb115ec1e77c412272a90466d427ac6273cc5eb
font_01_sfnt_off00010495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10495 10884 bytes
SHA-256: 3ddb04f4a523292814c2d2102b26466c9634e13b95b83d135ed4248c70dce503