Malicious PDF — malware analysis report

Static analysis result for SHA-256 04eabc86b93d23d1…

MALICIOUS

PDF

71.9 KB Created: 2021-01-03 12:52:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 3d42e29947b4f6ec82edd187964b4234 SHA-1: c6c275775b27386964ae91f6da61c5b79c07ad14 SHA-256: 04eabc86b93d23d164b5e33c4f85b6b7dcd0ff986084841f4199cab12e742095
154 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ggtraff.ru, which is designed to lead users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL heuristic confirms the presence of a link within the document body, likely intended to trick the user into clicking it.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ggtraff.ru/aws?utm_term=encyclopedia+of+science+projects+pdf+free In PDF document text
    • https://cdn-cms.f-static.net/uploads/4388424/normal_5fd7911b635dd.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxovunevo/8HUgcye/30219654653.pdfIn PDF document text
    • https://cdn.sqhk.co/wafixagi/SRtREoM/49372642096.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403940/normal_5f9a859d2c560.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390324/normal_5fd05bb4bceec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413113/normal_5f939b4ff40f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456387/normal_5fbf2282242e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450884/normal_5fc1827d768f0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/765ce21a-bbe0-43ee-9534-c54828a41a0f/ralawobirifadolidapas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40a230a1-bf80-4536-b8b7-db4c21a42a4b/nothing_gold_can_stay_so_eden_sank_to_grief_meaning.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c363a811-f822-4417-856d-be882b5e4403/is_there_a_walmart_in_germany.pdfIn PDF document text
    • https://s3.amazonaws.com/xukirizugukugi/angamaly_diaries_movie_masswap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38f281ae-440c-4bab-a382-0e304aab6af8/toolbox_for_minecraft_pe_apk_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4adb7090-7332-4fea-8c40-bc38e71a235a/29908327212.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_off0000dd7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD7D 5284 bytes
SHA-256: d9c04e6fbe6197b0fabddf558eaa75bcad04fa07fc5fbc92813f5132384308f7
font_01_sfnt_off0000ef9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF9C 10236 bytes
SHA-256: 324b34f8f0455abf913a2e37ccd2cedd8fdda56ab419584ec7cfaf1c4d115558

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