Malicious PDF — malware analysis report

Static analysis result for SHA-256 28f9bad201a0a7c2…

MALICIOUS

PDF

468.1 KB Created: 2020-04-01 19:57:55 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 5040ff4abcfc98945b1619c72c45b0a0 SHA-1: 9af81b03d093a2f153b6284fc13f41f57f7e8111 SHA-256: 28f9bad201a0a7c283e1a7f13858d5f53f9d9224282803c7efd9234693b65c9a
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains heuristics indicating it is a callback phishing lure and a payment redirection lure, suggesting a business-email-compromise pattern. The embedded URL points to a suspicious domain, likely hosting a malicious payload or phishing page. No scripts were extracted from this sample, limiting the ability to determine specific execution chains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9596

Heuristics 5

  • 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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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 http://superhgh.com/uploads/1/3/1/4/131437977/131437977.html#dynamed+healthcare+solutions+infopark+kochi PDF link annotation
    • http://aaaresidential.org/uploads/1/3/0/8/130873820/d0b03916b832cc2.pdfIn PDF document text
    • http://nikkirelford.com/uploads/1/3/0/2/130274269/rizefi.pdfIn PDF document text
    • http://mindfullyworthy.net/uploads/1/3/0/8/130813427/acfd0092036b0ed.pdfIn PDF document text
    • http://cacaoriosilanche.com/uploads/1/3/0/6/130621963/tamizutapamat-tadif-kupunezajiw.pdfIn PDF document text
    • http://cleanslate.design/uploads/1/3/0/2/130291596/4507123.pdfIn PDF document text
    • http://orbead.shop/uploads/1/3/0/5/130540437/3a41eba0ae2f69.pdfIn PDF document text
    • http://amadorah.com/uploads/1/3/1/4/131409841/0532343bb.pdfIn PDF document text
    • http://drmarv.com/uploads/1/3/0/6/130621960/21c5301df.pdfIn PDF document text
    • http://madeinsugarland.org/uploads/1/3/0/6/130620280/315253.pdfIn PDF document text
    • http://hhscvte.org/uploads/1/3/0/6/130621043/8571548.pdfIn PDF document text
    • http://mesartsacademy.clubzona.org/uploads/1/3/0/2/130287989/biwabudovisid.pdfIn PDF document text
    • http://clinkercafe.com/uploads/1/3/0/5/130543656/7d725340.pdfIn PDF document text
    • http://muadmusicfever.com/uploads/1/3/0/6/130603690/5844569.pdfIn PDF document text
    • http://yahmonhemp.com/uploads/1/3/0/9/130969411/6830475.pdfIn PDF document text
    • http://catalinapr.com/uploads/1/3/0/8/130813973/vuvegilepeleb-lukobojivo-xixenafawo-kapomapikumoro.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign: kevinpendergast.com 7 samples

Related samples 1

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006f11d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F11D 1856 bytes
SHA-256: f34103cf36efa7500d7f6317751553c3c50cbe7622f60d201a294919265eafee
font_01_sfnt_off0006f9c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9C0 10016 bytes
SHA-256: 6fd84d89de60f33a6b0081b6caef39ab3fc325147b09727338845ebbc74679e5
font_02_sfnt_off00071f28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71F28 2696 bytes
SHA-256: cb1c8cbf188b645d16f95c9c252f2ebc66d3fda19335e70e885de5089d495fe5
font_03_sfnt_off000728c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x728C8 16036 bytes
SHA-256: 779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63

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