Malicious PDF — malware analysis report

Static analysis result for SHA-256 412095c47c3463ab…

MALICIOUS

PDF

46.5 KB Created: 2020-05-15 04:17:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-08-25
MD5: a5dfe775855b8c75b2e6be50684e6ed8 SHA-1: 807a16d8c3fc0b2ce3efdecb7fd4ada2bd2581ea SHA-256: 412095c47c3463abaebb037c7cac6c03d5aee46eaf927aa2e97da603a969e167
104 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which are structured as link farms, suggesting a malicious intent to redirect users to potentially harmful sites. The heuristic 'SE_INVOICE_LURE' indicates the document may be disguised as an invoice or payment request, further supporting a phishing or scam-related attack pattern. The presence of many external links and the ML classifier's high confidence score indicate a high likelihood of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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 http://losgatosswingband.com/uploads/1/3/0/2/130288448/130288448.html#billing+management+system+project+report PDF link annotation
    • http://atom-magic.com/uploads/1/3/0/8/130814060/jutopet_lexipijokodote_fibiporefewe.pdfIn PDF document text
    • http://stayawareart.com/uploads/1/3/0/7/130739682/zivolumavozage.pdfIn PDF document text
    • http://nextheartbeat.com/uploads/1/3/1/4/131407010/wuzegap_rufukazonemagap.pdfIn PDF document text
    • http://wendyfwilliams.net/uploads/1/3/0/3/130313577/zosokeguwularir_sopivivab.pdfIn PDF document text
    • http://howie.life/uploads/1/3/0/5/130539034/bitome_vojejavotiseg.pdfIn PDF document text
    • http://thecharmerwpb.com/uploads/1/3/1/4/131406321/komujenomupufoz_xetujito_parenaz_litavobabojaxeg.pdfIn PDF document text
    • http://vonshartzer.com/uploads/1/3/1/3/131398373/5b787b4f593cd8.pdfIn PDF document text
    • http://queenofwandstarot.net/uploads/1/3/1/6/131606121/2625558.pdfIn PDF document text
    • http://borderlinesproject.com/uploads/1/3/0/5/130546036/wexujo-zuravix.pdfIn PDF document text
    • http://dropoak.com/uploads/1/3/0/4/130483842/kogomikefu_jimunejar.pdfIn PDF document text
    • http://thesoundofkitty.com/uploads/1/3/0/4/130476188/semuwopub.pdfIn PDF document text
    • http://npetersonphoto.com/uploads/1/3/0/4/130488273/pamavorugin_segofusobi_kukitozekuwilax.pdfIn PDF document text
    • http://bayareaspark.com/uploads/1/3/0/4/130488197/4405217.pdfIn PDF document text
    • http://stullinvest.com/uploads/1/3/0/6/130639386/a6bc47.pdfIn PDF document text
    • http://marcuslaster.com/uploads/1/3/0/9/130969249/bokube.pdfIn PDF document text
    • http://annarborsolarpanels.com/uploads/1/3/0/6/130605193/damutova-jefapilir-lodafudow-dawakuvorisimid.pdfIn PDF document text
    • http://reviwork.com/uploads/1/3/0/5/130589230/85f4b578b2a9a66.pdfIn PDF document text
    • http://retrospectives-vintage.com/uploads/1/3/0/4/130435794/bomanimisalenim_tokivimorabi.pdfIn PDF document text
    • http://greenjuicegroupclient.com/uploads/1/3/1/6/131636839/miguvipiwelaw.pdfIn PDF document text
    • http://thenodramamamas.com/uploads/1/3/0/2/130287269/1840973.pdfIn PDF document text
    • http://annenissen.com/uploads/1/3/0/6/130605217/gumewunale.pdfIn PDF document text
    • http://khmediation.com/uploads/1/3/0/5/130589217/mijivifunetizo.pdfIn PDF document text
    • http://beproudvotecloud.com/uploads/1/3/0/2/130288522/7035156.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn 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_off00007414.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7414 10372 bytes
SHA-256: 5c598332b9cc8201abea06ec722f938d9d561bc24a9b2e7f8529bcb8e86a7dea
font_01_sfnt_off0000980a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x980A 6328 bytes
SHA-256: 3d72930feeb0bc85a428506d97b17090741e71edc66cc4b7f164aebee93a2863

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