Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc0daa3d1795eb60…

MALICIOUS

PDF

77.1 KB Created: 2021-01-02 04:21:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9f4452098f4233d4745e5a236b344850 SHA-1: 38c261e89aa4f3f6b1093a5f6a1a7919ed3f3fdf SHA-256: cc0daa3d1795eb602dbff3441362f7defb199a45800aa11c1a5c992c85873525
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://traffnew.ru/wb?keyword=beholder%202%20in%20search%20of%20courage PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4366354/normal_5fcf3918d13ae.pdfIn PDF document text
    • https://somisesi.weebly.com/uploads/1/3/4/5/134523690/4809936.pdfIn PDF document text
    • https://divamokavagi.weebly.com/uploads/1/3/4/8/134871471/bazirat-nedokeridetis-gimujefolo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470017/normal_5fa36de99bf25.pdfIn PDF document text
    • https://gonufefimexej.weebly.com/uploads/1/3/4/8/134892828/vopuzenububiwilepino.pdfIn PDF document text
    • https://nasinapalu.weebly.com/uploads/1/3/0/7/130739684/dadok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392664/normal_5f9382822e329.pdfIn PDF document text
    • https://puxezemugip.weebly.com/uploads/1/3/4/3/134311794/26b6a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420448/normal_5fd80b48aaf00.pdfIn PDF document text
    • https://kopupoko.weebly.com/uploads/1/3/4/4/134471128/karofu_sazufiterato.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369657/normal_5f88ad804ce1a.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/lepimebosuxomu_fukixusa_famosulizik_sukoruzikazil.pdfIn PDF document text
    • https://melazikadoxu.weebly.com/uploads/1/3/4/5/134594637/magoxuvuli.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/xunilukegez/fumonejid.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/citadel_forged_with_fire_weapon_guide.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_off0000effd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFFD 5464 bytes
SHA-256: 89ecfc82c7d4bf461b7586fca4ce7eca1201ddf4355b5bdf8d0e3382145ff835
font_01_sfnt_off00010294.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10294 10840 bytes
SHA-256: 99bf370652249332287dbe7d97f33a7984b8f39c2606e76958f72f1514d04830

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