Malicious PDF — malware analysis report

Static analysis result for SHA-256 eabce829b2ff4a5b…

MALICIOUS

PDF

68.2 KB Created: 2021-02-17 05:40:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: b8579d205aaa6792f2af938ae1715039 SHA-1: 3cffb459bf48a7b83e73d4b86ea2b42892e3752f SHA-256: eabce829b2ff4a5b22bab44bc5989fb614fd28eddea147f4c07cd2cf2305374f
196 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by multiple heuristics, including a critical ClamAV detection and an ML classifier. The presence of a large number of external links, including one pointing to a PDF download, suggests a phishing or malware distribution attempt. The 'SE_MFA_LURE' heuristic indicates the document may be designed to harvest credentials or session tokens by mimicking a multi-factor authentication prompt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://maypoin.ru/aws?utm_term=sig+p229+duty+holster+with+light PDF link annotation
    • http://bodegumuxizobi.22web.org/nukewanukumaneget.pdfIn PDF document text
    • http://e-devletturkiyeaidatsistemimgovtr.com/tips_for_buying_and_selling_sports_cardsrrexk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426075/normal_60208baf36a82.pdfIn PDF document text
    • https://kadonomu.weebly.com/uploads/1/3/1/4/131454950/1411654.pdfIn PDF document text
    • https://xisubuto.weebly.com/uploads/1/3/1/3/131380177/sokivoxawu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463824/normal_602c83b53448a.pdfIn PDF document text
    • https://fevenegor.weebly.com/uploads/1/3/1/3/131380973/dovoredax-nazosuzexazano-nuweremone-dafubetoxakenap.pdfIn PDF document text
    • https://gidafefutor.weebly.com/uploads/1/3/4/0/134040883/risuzosimigul.pdfIn PDF document text
    • https://bolumuratojepo.weebly.com/uploads/1/3/4/7/134749128/878ff4a89778c6.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/juvetaso/hiragana_stroke_order_worksheet.pdfIn PDF document text
    • http://dusalotiwuje.rf.gd/18250464732.pdfIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/55970890414.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/wuxubugikudulatu.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/project_costing_sheet_template.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_off0000ca25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA25 5596 bytes
SHA-256: 40d7780941772dc2b0dfc70d1a2e04336171cbe77a96adb1b1287bb708984b5e
font_01_sfnt_off0000dd44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD44 11000 bytes
SHA-256: ed7d5e8287730d791dfa7d2497ab5e75f0a7bbe294bed6dda66b4e7fe9dfe9e2

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