Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2460c6945ee008f…

MALICIOUS

PDF

86.8 KB Created: 2020-11-20 20:43:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 60e8107db7a1539a985fbd9cfcc7f0da SHA-1: 722694dbaaade8e4cdd3c16d1c3e5b2896c93941 SHA-256: d2460c6945ee008fb327b4d812e3e7082913b92fc16c64e963119b6ca3b16b16
164 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a link farm, suggesting an attempt to direct users to malicious websites or download further payloads. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure itself is indicative of a malicious lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • 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
  • 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://trafftec.ru/123?utm_term=monty+python+english+knights PDF link annotation
    • https://dokakida.weebly.com/uploads/1/3/1/3/131380589/8048858.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/jotasij.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/wegugus/hack_unblocked_games.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff34ff84-3d96-46f7-a613-435fe02669ea/pokefekiwevunikixoref.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/nejolekopa.pdfIn PDF document text
    • https://s3.amazonaws.com/niwotipugonuvoz/79997317515.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23db3604-2a9e-4de1-97b3-6173564f1deb/11077558765.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae85407d-80fd-4e57-ba9a-2bec75785d92/9.1_characteristics_of_life_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/fewifuwu/topaxujizifiwidakojetig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/303f0aad-7479-4ffe-a801-929432575c05/mazazarawulagusimegisovur.pdfIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/measuring_up_answer_key_science.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_off00011534.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11534 4944 bytes
SHA-256: cb76d910e4998229133fc6d531da6e67e503dc7280cb7967b25e447f4d8b3a46
font_01_sfnt_off00012626.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12626 12308 bytes
SHA-256: a0a91f602ec94862570b28806b7e886f579e57f473d29f4b7085852341683690

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