Malicious PDF — malware analysis report

Static analysis result for SHA-256 96066af52a34a9ca…

MALICIOUS

PDF

65.3 KB Created: 2021-06-07 23:54:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 5b5f99ffcbb926e4850902467b3a59a5 SHA-1: e49d537c61df4cb9301a98f40721fa4547aa5fb8 SHA-256: 96066af52a34a9cad4ff5971cad202eaca93e8d1bb3491cd9e7fcb502528850e
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8603

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.
  • 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
  • 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://synerhu.ru/pbw?utm_term=rap+beat+maker+online+game PDF link annotation
    • https://pozojemiveze.weebly.com/uploads/1/3/4/6/134690114/jidibekaxolax_dagifokigokita_dujevetituderuf.pdfIn PDF document text
    • https://tazegeravi.weebly.com/uploads/1/3/5/3/135390309/3866aa9.pdfIn PDF document text
    • https://bozobazevadetob.weebly.com/uploads/1/3/1/6/131607158/3478391.pdfIn PDF document text
    • https://tetemubegogik.weebly.com/uploads/1/3/4/4/134443084/buxoliju.pdfIn PDF document text
    • https://mirijanonukuzo.weebly.com/uploads/1/3/2/7/132740352/9682948.pdfIn PDF document text
    • https://woxopipuwesubaj.weebly.com/uploads/1/3/1/4/131453061/611b2871cfbe4.pdfIn PDF document text
    • https://ranerenonosojib.weebly.com/uploads/1/3/1/4/131483420/pilibuvuwon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mulasamesi.pbworks.com/f/cars_fast_as_lightning_mod_apk_unlimited_money_and_gems_android_1.pdfIn PDF document text
    • http://rijunepupuja.pbworks.com/w/file/fetch/144467517/definitive_guide_to_dax_2nd.pdfIn PDF document text
    • http://kufujibumufa.pbworks.com/w/file/fetch/144412419/quality_function_deployment_and_six_sigma.pdfIn PDF document text
    • http://mituxap.pbworks.com/w/file/fetch/144658719/43482150296.pdfIn PDF document text
    • http://poforezufovu.pbworks.com/w/file/fetch/144693024/school_of_dragons_gem_hack_2020.pdfIn PDF document text
    • http://detomipipu.pbworks.com/f/62784525621.pdfIn PDF document text
    • http://wuxikadafi.pbworks.com/f/dragon_mania_legends_4.0_0_mod_apk_download_for_pc.pdfIn PDF document text
    • http://wurogakitibe.pbworks.com/w/file/fetch/144708714/alphatrak_2_instructions.pdfIn PDF document text
    • http://rimogeto.pbworks.com/w/file/fetch/144427779/33285906033.pdfIn PDF document text
    • http://lowigamivux.pbworks.com/f/chopin_op_28_no_4_analysis.pdfIn PDF document text
    • http://pudamalulera.pbworks.com/f/zaniwofesudirijagiduwox.pdfIn PDF document text
    • http://morabef.pbworks.com/w/file/fetch/144627270/bemaluvigevo.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB6 4960 bytes
SHA-256: 071b3767006ceb10c7c146c6057975adbda20ebee654f9d78490aa31688d49be

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