Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba0cfe19d8faa62a…

MALICIOUS

PDF

67.7 KB Created: 2020-11-17 17:43:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59bd22cef0c454b80500e1d52c790cde SHA-1: 1be440df3932878705803a927e1f0d73d62d6da1 SHA-256: ba0cfe19d8faa62a8715f1dc3996b06bc109479fdaed2a68d98f5fea7703f240
236 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document exhibits characteristics of an advance-fee scam and payment redirection lure, as indicated by multiple heuristic firings. It contains numerous external links, with one prominent URL pointing to 'trafffi.ru', suggesting a phishing or malware distribution attempt. The ClamAV detection and ML classifier further support its malicious nature, likely exploiting PDF vulnerabilities to execute malicious code.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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://trafffi.ru/123?utm_term=oklahoma+unclaimed+property+due+diligence+letter
    • https://zowupenejanelaw.weebly.com/uploads/1/3/4/3/134397621/tulewewusus.pdf
    • https://voperupazekeko.weebly.com/uploads/1/3/4/5/134505312/3899916.pdf
    • https://wudemivezetuf.weebly.com/uploads/1/3/4/3/134318680/marupudumido_dimija_xideb.pdf
    • https://cdn-cms.f-static.net/uploads/4371272/normal_5f933654dbfd9.pdf
    • https://xanugobolenaz.weebly.com/uploads/1/3/4/3/134371028/xoraterugidur-vizofugili-wuvogedusokeguv.pdf
    • https://kirimanadawa.weebly.com/uploads/1/3/4/3/134383910/1892829.pdf
    • https://felajarego.weebly.com/uploads/1/3/4/6/134605087/cb6336b7516d0a.pdf
    • https://jepusujejo.weebly.com/uploads/1/3/4/5/134598091/3554652.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/vifusupegiza/genvideos_online_movies.pdf
    • https://s3.amazonaws.com/nonabafat/3d_parallax_background_apk_download.pdf
    • https://s3.amazonaws.com/tadovu/74209056670.pdf
    • https://s3.amazonaws.com/zunewidimem/72370511473.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca4c.bin
e2a18fd520fe1e2c5d4c5cc2e6bd5219979959bb4dbfbc1ae55016f1cf10a439		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCA4C 5500 bytes
font_01_sfnt_off0000dcdf.bin
2878d6c4ae5066637150691058dcaa40e424160f545f37fbeb7f8f6f3e70a70d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCDF 10972 bytes

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