Malicious PDF — malware analysis report

Static analysis result for SHA-256 04d266066462c701…

MALICIOUS

PDF

70.4 KB Created: 2020-11-16 18:15:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 353c75deaf094ac19b6367a68c57f328 SHA-1: dc5d64df8c8c4bae0b41d0301836e50d7fc1b43a SHA-256: 04d266066462c701bfe384557d88a240a0be31e43b6ec1350408de3bf7357a87
164 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing lure, specifically mentioning invoice or payment language. It also contains numerous external links, with one suspicious URL pointing to 'traffnew.ru'. While no scripts were directly extracted, the presence of many external links suggests an attempt to redirect the user to malicious content, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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 https://traffnew.ru/123?utm_term=area+code+208 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365653/normal_5f87b3b734d24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368982/normal_5fab136582a07.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452374/normal_5f9f6076cfe0e.pdfIn PDF document text
    • https://tijujuvuxerupuz.weebly.com/uploads/1/3/4/2/134236121/a7bbaffd1a47.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368952/normal_5f91d817c8a94.pdfIn PDF document text
    • https://fikupekuxugo.weebly.com/uploads/1/3/4/6/134612485/jesesuvanegotewimedo.pdfIn PDF document text
    • https://rukinedofixod.weebly.com/uploads/1/3/4/3/134348838/kituvizivulaj.pdfIn PDF document text
    • https://kipujoguburaza.weebly.com/uploads/1/3/4/3/134321983/boboxitikiwogo-wariwudobe-defuzuni-rarakewozazi.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/tuxutedi/plant_labelling_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/ribepovujodatezu.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawexawinogad/jedariwemofafu.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/how_long_will_cooked_chicken_stay_in_fridge.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/wozaziruzavevatix.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/marketo_certified_expert_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxepiduded/bleach_vasto_lorde_ichigo.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_off0000d73c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD73C 5180 bytes
SHA-256: d9a82dd31d140c8da26f3562c959c9db82f83aaea1671c354603093c585da9b6
font_01_sfnt_off0000e8e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8E5 10552 bytes
SHA-256: 3173b4d212e7df7ac614134b0611ff9a5387160d1870ff7240482bdf3d4934d4

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