Malicious PDF — malware analysis report

Static analysis result for SHA-256 5933cf10784c0985…

MALICIOUS

PDF

73.7 KB Created: 2020-12-04 02:11:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: ea7191898cffa68f7fdba74334bae34c SHA-1: deced1d314fc6012fc7274a49388c34a4852be09 SHA-256: 5933cf10784c0985d5e1bf829c0975e5f3bd2cd64327bf057351b26e53f36afa
156 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9998

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://trafffe.ru/strik?utm_term=smith+wigglesworth+on+the+holy+spirit+pdf+download PDF link annotation
    • https://biwomewiwuxe.weebly.com/uploads/1/3/4/1/134131409/5438661.pdfIn PDF document text
    • https://vovufopoxin.weebly.com/uploads/1/3/4/4/134466437/xezamume.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd1a91803f460880cd0cd3/1606228630825/dovipedigaxepi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc17741e5c7695ca99fa7a5/t/5fc764450623334b0c5fb35a/1606902854203/tap_tap_dash_unblocked_games.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6a7eccc-8a1b-4a13-86c1-5dca53e827dc/17981284770.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c186307c-d755-43fc-9aca-930a8a72c265/87387311611.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0de27085bf90c0efce9ba/t/5fc8250f46ef2e08cbaa584e/1606952209801/star_vanisher_apkpure.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87cb6bd3-58b0-4606-9fbc-3eff396fbcfc/fanejafitiv.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc79b152da0933358952f14/t/5fc962b2cd60ed03121316ef/1607033523182/sotowekolewajuxal.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1079560f2895dc1e88f35/t/5fc5739e18e72e5fdb90cee7/1606775710869/skyjack_scissor_lift_3219_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5331d17e72026400627cf/t/5fc678093f75b16643b3b983/1606842378347/fly_gps_mod_apk_for_pokemon_go.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e037.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE037 5752 bytes
SHA-256: 471a46e16b72e9c0d18ebb3c9a2ad73082eab2f21ef75b2aff82016c3b6691d4
font_01_sfnt_off0000f3bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3BD 11340 bytes
SHA-256: 587de5bf747ecc96be77981e4bf203934566c2b43caf9e4c309b615966b58e2d

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