Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a757edccee55e26…

MALICIOUS

PDF

72.1 KB Created: 2021-01-28 07:17:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: caeb8915b6c4db7c828d980889fc9e65 SHA-1: f9d6d93ab7ff63d1dd43270c1de36f5869dc4254 SHA-256: 0a757edccee55e2612d3ce7d6024adbbc3bc8f2c210707ac0a82c802ed055a2a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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 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.
  • 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://trafftec.ru/wb?keyword=connecting%20heart%20rate%20monitor%20to%20peloton%20tread PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4377115/normal_5ff335688d034.pdfIn PDF document text
    • https://cdn.sqhk.co/jisaside/ca3Dod6/82059278758.pdfIn PDF document text
    • http://help-service-support.com/xomilesidikoohhng.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469106/normal_5fcf9abe5dfde.pdfIn PDF document text
    • http://grigolia-studio.ru/water_borne_diseases_causes_and_prevention026cf.pdfIn PDF document text
    • https://xufetujada.weebly.com/uploads/1/3/4/7/134745175/faxusemunogijufe.pdfIn PDF document text
    • http://chelobaka.space/pentagon_building_mall_entrancer9evt.pdfIn PDF document text
    • https://virefogagivagu.weebly.com/uploads/1/3/0/8/130815228/totowojonina_daduvebo_vogevoniwowu_joxobuxipuwugo.pdfIn PDF document text
    • http://salet.store/tenancy_agreement_template_uk7quga.pdfIn PDF document text
    • http://topshops.website/373712630315v02f.pdfIn PDF document text
    • https://zuxadozi.weebly.com/uploads/1/3/4/6/134662888/1719489.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404524/normal_5fe41ace9ea55.pdfIn PDF document text
    • https://mafugefowodofo.weebly.com/uploads/1/3/1/3/131378796/3494689.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419827/normal_5fe3ecec4b00f.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/tikofaketonub/triathlon_buyers_guide_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/zisulamisozoto/pojas.pdfIn PDF document text
    • https://s3.amazonaws.com/dukexajuj/balovuzorejow.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/amigdalite_bacteriana_pediatria.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_off0000dd46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD46 5216 bytes
SHA-256: f468dca640d0173598abd1fe4ee384e133fb3c01b41337ae4d7de54115dfa815
font_01_sfnt_off0000eed2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEED2 10600 bytes
SHA-256: e4ed4c49c8dfc50a2c5611029f06df94d2660afae8bd96706ff202a564a46d75