Malicious PDF — malware analysis report

Static analysis result for SHA-256 7622f3d3321ae705…

MALICIOUS

PDF

76.9 KB Created: 2021-05-25 14:40:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 73d7d281b979a886062e6436052d5700 SHA-1: 916b059f89ea07d1df6cc73665eced78e2c398fb SHA-256: 7622f3d3321ae705b642a4c92ea60aeb3226ef1a1a9e8128f44e10f0863983b9
164 Risk Score

Malware Insights

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

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 and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://golowaki.ru/strik?utm_term=kaabil+movie+download+filmywap PDF link annotation
    • https://xajapimiwumorav.weebly.com/uploads/1/3/0/7/130739235/wamisi-makoz.pdfIn PDF document text
    • https://mepogazab.weebly.com/uploads/1/3/4/5/134501519/gerorup.pdfIn PDF document text
    • https://dipidedi.weebly.com/uploads/1/3/2/8/132815933/guvekasuja_vanomanizirefo.pdfIn PDF document text
    • https://samoxaposem.weebly.com/uploads/1/3/4/3/134361226/sudiropumela_kisogezaj.pdfIn PDF document text
    • https://pitazifuriza.weebly.com/uploads/1/3/0/9/130969431/lirabojunovokiz.pdfIn PDF document text
    • https://xogepojofaridel.weebly.com/uploads/1/3/2/7/132741214/sapotik.pdfIn PDF document text
    • https://dezamemev.weebly.com/uploads/1/3/4/7/134746632/dukegot.pdfIn PDF document text
    • https://vilinumatilaji.weebly.com/uploads/1/3/2/7/132740241/wobijawox.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/safago/allen_carr_easy_way_to_quit_smoking_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/30237251952.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/ba_1st_year_sanskrit_book.pdfIn PDF document text
    • https://s3.amazonaws.com/zamemigojat/certificate_of_conformity_eurlex.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/bakewell_livestock_market_report.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/what_is_the_oldest_scripture_of_hinduism_called.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/internet_explorer_folder_location.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/gixotumakimeb.pdfIn PDF document text
    • https://s3.amazonaws.com/legesiliv/gepejoza.pdfIn PDF document text
    • https://s3.amazonaws.com/wovedukevikov/30496925491.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/10731906711.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/bisagujojeberuxupozosofu.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF79 5276 bytes
SHA-256: 181931634ac63621c38acaf67df27b0eaea7a3bb53d3472695ca248e0e78f622
font_01_sfnt_off00010181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10181 10864 bytes
SHA-256: 907cae7bf3fe5536da53d16c7b886d2375dd9f46bc6b612e2741f57e108f058d

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