Malicious PDF — malware analysis report

Static analysis result for SHA-256 46d1cc0c8da79d07…

MALICIOUS

PDF

69.7 KB Created: 2021-03-18 22:48:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: d103bbd75d749bf00773a64fb3143cd6 SHA-1: 5e04fa10a23e47b6605efad29599ba3a559f0fc7 SHA-256: 46d1cc0c8da79d07c1d6a685cedd56d47b66f6400601f2eb17d881393ceb7466
156 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xajibur.ru/strik?utm_term=how+to+work+a+krups+nespresso+machine PDF link annotation
    • https://cdn.sqhk.co/mogizufofuj/O0hdjcb/55196453044.pdfIn PDF document text
    • https://fogoranamixite.weebly.com/uploads/1/3/5/3/135390362/4726235.pdfIn PDF document text
    • https://wimopoxidiki.weebly.com/uploads/1/3/5/3/135313965/b81ae94.pdfIn PDF document text
    • https://cdn.sqhk.co/tuwetebep/jd3Vaia/ludotonikobirek.pdfIn PDF document text
    • https://xolopebowuraj.weebly.com/uploads/1/3/4/6/134600193/kazika.pdfIn PDF document text
    • http://businessmentality.com/gikafomog13v65.pdfIn PDF document text
    • http://nakidki-alkantara.xyz/hp_deskjet_3050_manual_wireless_setupeuuzz.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/ghgjhfT/33023190491.pdfIn PDF document text
    • https://cdn.sqhk.co/xovikojux/mhfgije/mega_millions_nj_august_25_2020.pdfIn PDF document text
    • https://tadizusojad.weebly.com/uploads/1/3/2/7/132712436/6947458.pdfIn PDF document text
    • http://hangookoil.ru/things_to_draw_when_bored_for_beginnersry2is.pdfIn PDF document text
    • https://cdn.sqhk.co/mezutorixo/Eighb8f/82622309475.pdfIn PDF document text
    • https://biwawidojimu.weebly.com/uploads/1/3/4/6/134648839/kirunirawa-sadexifufudip-buxanaje-bifuno.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/wukara/96026226851.pdfIn PDF document text
    • https://2ea9429b-0332-4ee6-bb75-ab9535b56c99.filesusr.com/ugd/e2f7e1_87886b9f355f4012b0728e807de216e8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/brandy_melville_warehouse_sale_dates_2019_texas.pdfIn PDF document text
    • https://df256b98-640c-444d-885a-8195c7360722.filesusr.com/ugd/40b9e6_9d0e5ba46e3f46cf9defd95ce47c7c99.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pomaxa/vukonisoduraf.pdfIn PDF document text
    • https://d8acad56-eb9a-42d1-a06c-a695c5b02328.filesusr.com/ugd/0ad6c7_fa5840da49d747a5957e279899c66a11.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jijari/63083862939.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/43053493481.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_off0000d355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD355 5256 bytes
SHA-256: ffdcb98b4172f617601286dc02384d3b5312590fb64747c99babac4120b5a474
font_01_sfnt_off0000e51b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE51B 10592 bytes
SHA-256: 7ea59df772eafa2ab0169c677dc7b32ed5f654233876b4d5afec040cf46688c3

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