Malicious PDF — malware analysis report

Static analysis result for SHA-256 80eb2fe258600eb1…

MALICIOUS

PDF

72.1 KB Created: 2020-12-15 15:29:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: e972c7968aa219f1285d10116122cf47 SHA-1: 78176552a55cfb06c9fe99ca89461140c42f1730 SHA-256: 80eb2fe258600eb15ba1509aa396eceec1e4ce664b51cadc1ca0edbb9d00b357
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'gettraff.ru', which is disguised as a download for game cheats. This indicates a phishing or malware distribution attempt. The ML classifier and ClamAV also flagged this PDF as malicious, supporting the assessment of a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://gettraff.ru/123?utm_term=clumsy+ninja+unlimited+gems+and+coins+apk In PDF document text
    • https://kimuremosov.weebly.com/uploads/1/3/4/7/134732255/judet.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/wajibile/66770192480.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/degememelebetofitorutib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20f6c564-f618-43f2-a5f7-fa062dddb8de/ping_pong_parachute.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/cashmere_high_school_uniform.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/christmas_church_flyer_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jusagi/48660405397.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5e74b80-a51f-4f07-954c-6c771fc82345/mizukejosenipujumodusiruz.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0fec5e5c7695ca99c2451/t/5fcb5eff1df7590d80de84bb/1607163648510/nicki_minaj_songs_2014.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/873cb154-0a4f-4787-a9ec-025a9bcfe0f2/46402533396.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd6a3168-e51d-4782-ac51-28ea87ccb0ae/poxibibopuxuvido.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc798bbfc603311fbfb3b4f/t/5fd05549125f6a657a4a596e/1607488842350/87514124608.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67d4ee2a-847d-42d5-9431-078e0d03a9d9/tisitabifi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/990e3e49-aeca-46b5-9fdf-bbbb2c3fcc61/kite_runner_audiobook_chapter_3.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_off0000dbfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBFD 5444 bytes
SHA-256: e4cd6aa52e0377315d3454312fc8592e94fd7fabc0ca99ae1b51fa230a0844e2
font_01_sfnt_off0000ee84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE84 10692 bytes
SHA-256: 7e8abd2570af31519078fcd117542261595b55a400aeb9845dd77a08f321cf6c

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