Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fad26294c26177f…

MALICIOUS

PDF

310.6 KB Created: 2020-08-21 12:20:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 07bac641c34f252a6daea4c58b4714dc SHA-1: bd5e100edc1cd2d76fe39edf851e16d7b6f86e61 SHA-256: 1fad26294c26177f59e66ec1a33531d86039ce0ac6f11afa325ff67ae56e9259
102 Risk Score

Malware Insights

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

The PDF contains an embedded URL that points to a known malicious redirector. The 'SE_URGENCY_LURE' heuristic indicates the document likely uses urgent language to prompt user interaction with this link. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URL suggest an attempt to redirect the user to a malicious site, potentially for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://ttraff.ru/pify?keyword=esc+guidelines+heart+failure+iron In PDF document text
    • http://files.sarasotaveteranscommission.com/uploads/1/3/1/4/131437493/gogefo.pdfIn PDF document text
    • http://xorunudej.tflorian.com/uploads/1/3/1/4/131483068/xumiwujekukupog_xigovokad_manixapaxe_fasexagafuf.pdfIn PDF document text
    • http://files.coulteryoung.com/uploads/1/3/0/9/130969206/xerugow.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7442/9852/files/arduino_esp8266_web_server_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1600/9374/files/melarukogukukadanupob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3485/3021/files/wiwap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5461/9041/files/dojevalurep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/ruwan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0875/7657/files/fuxiranikixik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4071/7462/files/90146182412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/3295/4278/files/easy_bcd_win_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9291/8937/files/nosifed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/8227/9062/files/fofolukolugujizidunizufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/3695545916.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004861b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4861B 5240 bytes
SHA-256: 140006199297ce6faef40278d42cde21f2f11a8cd8278e271360b74777c6a076
font_01_sfnt_off000497d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x497D8 16468 bytes
SHA-256: fb1e6c3edc199b02410f723167744269e048d167350ddcd0b9673383621eb623

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