Malicious PDF — malware analysis report

Static analysis result for SHA-256 203d47a3c5efd6a0…

MALICIOUS

PDF

73.1 KB Created: 2021-03-09 19:37:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 99d8022900beb775f10769746e180400 SHA-1: 81f8fd52860eaf21f18105506120477503b4743a SHA-256: 203d47a3c5efd6a0aac00a2c3bc74082edf1a3ae4a324c793970b59d57d2c03e
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 7

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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) or Microsoft license-boilerplate 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 https://fokemale.ru/wix?keyword=bose+noise+cancelling+headphones+pairing PDF link annotation
    • https://nujobivodiji.weebly.com/uploads/1/3/4/7/134771327/b329fd58aec9c.pdfIn PDF document text
    • https://dopozigixojak.weebly.com/uploads/1/3/4/5/134509916/gijazamilagufema.pdfIn PDF document text
    • http://lulopoboxefon.scienceontheweb.net/friction_worksheet_3rd_grade.pdfIn PDF document text
    • http://zutolewe.mywebcommunity.org/66894251679.pdfIn PDF document text
    • https://zitidifomeki.weebly.com/uploads/1/3/1/4/131412181/pulajofofuwu.pdfIn PDF document text
    • https://pebizenif.weebly.com/uploads/1/3/0/8/130874023/wisemugodilimilexifu.pdfIn PDF document text
    • http://dabukim.mygamesonline.org/67032450758.pdfIn PDF document text
    • https://gibitomenufe.weebly.com/uploads/1/3/4/0/134041720/dadumajag.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/rutufokedizon/befawefixapo.pdfIn PDF document text
    • https://s3.amazonaws.com/wukara/julavolel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b5ebd25-8f2e-410c-8842-7f6c25739efa/way_of_the_world_summary_act_wise.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f415087-eaa2-4851-8172-fe9d6b0b9a0c/pilolax.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/avery_address_labels_template_l7163.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26ff6cd4-8d55-4934-8fd8-1417472ca54c/91141918200.pdfIn PDF document text
    • https://5d3a3edc-1384-4eb0-a354-174dd54c13aa.filesusr.com/ugd/7f5dc5_204354e1f9464521bc941d8178c81099.pdf?index=trueIn PDF document text
    • http://rubuvajaroxe.epizy.com/58344169226.pdfIn PDF document text
    • https://50bf384a-eeac-4f26-a262-e2ba1a5e00ba.filesusr.com/ugd/17159d_856eecbb365946f08c42884edae7f169.pdf?index=trueIn PDF document text
    • https://ba428ff1-d53d-4eb5-bdb2-cc960067f420.filesusr.com/ugd/7041e4_54b9f336c2da4cefb3239b1d6ef4bf82.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/hungry_shark_free_mod_apk.pdfIn PDF document text
    • https://0b609444-e5a2-4a7e-9779-a3c6bae51a53.filesusr.com/ugd/529dbf_f7e2b6d4989143a3b66c863e64f66b14.pdf?index=trueIn PDF document text
    • http://namajoveteri.epizy.com/zugefarigipozivejunipu.pdfIn PDF document text
    • http://marobow.epizy.com/64119970999.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_off0000e0d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D1 5384 bytes
SHA-256: 267b5e3ff0fc54a826b37f04466988b618c5813aa5c39eb66af8abef9b11f923
font_01_sfnt_off0000f317.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF317 10324 bytes
SHA-256: c4ee343d96a33cfe62f72aeb58b9f0dd2e7b2e6b1e0d91a9124c3f79ab92be78