Malicious PDF — malware analysis report

Static analysis result for SHA-256 05118ba76da45947…

MALICIOUS

PDF

78.6 KB Created: 2021-05-25 07:21:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 023cc485577cb3de5afb8eb133df7a77 SHA-1: 4c661df590010387d04e71e42b805f48cc177b97 SHA-256: 05118ba76da45947d8252e99aceb41e3501eb43d087fa0319cae6b6b0933812c
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to Weebly-hosted PDF files, suggesting a link farm or SEO manipulation tactic. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of techniques used to redirect users to malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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.
  • 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://bologen.ru/wb?keyword=5%20paragraph%20essay%20example%207th%20grade PDF link annotation
    • https://nurinakeviwiket.weebly.com/uploads/1/3/1/4/131407921/2ab74087.pdfIn PDF document text
    • https://fofodivadi.weebly.com/uploads/1/3/4/8/134895081/386414.pdfIn PDF document text
    • https://pedesidava.weebly.com/uploads/1/3/4/3/134355179/fa8e10c7da4.pdfIn PDF document text
    • https://juwopivevonu.weebly.com/uploads/1/3/4/6/134682880/dosetenev-posigun-gejerezujogu-gunegalelutel.pdfIn PDF document text
    • https://zupitexugavasol.weebly.com/uploads/1/3/0/9/130969618/497e25.pdfIn PDF document text
    • https://fixoxotogixas.weebly.com/uploads/1/3/4/3/134374926/nukivegaxesajogi.pdfIn PDF document text
    • https://gadonivoxe.weebly.com/uploads/1/3/5/3/135331758/72450.pdfIn PDF document text
    • https://dumetokewip.weebly.com/uploads/1/3/4/3/134394823/vunivezufuj-kejurege-xedagefukepi-gajutuwulanez.pdfIn PDF document text
    • https://nugukijozagesek.weebly.com/uploads/1/3/0/7/130739433/5561385.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/jolunenafobuw/xizojadi.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/64101323328.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/quietcontrol_30_wireless_headphones_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/47545809587.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/62742851192.pdfIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/6822316717.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/fannie_mae_guidelines_regarding_large_deposits.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/lean_muscle_gain_workout_routine.pdfIn PDF document text
    • https://s3.amazonaws.com/povodijirig/36934537011.pdfIn PDF document text
    • https://s3.amazonaws.com/ponivotigegepub/19793647313.pdfIn PDF document text
    • https://s3.amazonaws.com/naxozelozude/game_of_thrones_books_in_order_wikipedia.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/top_forex_trading_strategies.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E9 5176 bytes
SHA-256: dfa480082d9af85cac332b771afebdd3820447589b73b5b1699a666c348c11b0
font_01_sfnt_off0000f991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF991 10516 bytes
SHA-256: 68ffc99b83ab67c7db0e23b115c3a72ba038bb2a0f5d7dd704c5df66236014ce
font_02_sfnt_off00011d43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D43 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

Open this report in the interactive analyzer, or submit your own file for analysis.