Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b72cd84e9b5f457…

MALICIOUS

PDF

73.5 KB Created: 2021-03-04 02:39:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 88a2eb48cf3c22e38bcc13aca7e6bc46 SHA-1: 3d89c4b7ea83673f135bc93e2b4bca6aeca4a2d8 SHA-256: 0b72cd84e9b5f4576acc4ce6dc63aa005b028ef654637d507fe5255f5ff6b9c0
126 Risk Score

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 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://nipisod.ru/wix?keyword=didion+the+year+of+magical+thinking+pdf PDF link annotation
    • https://wunaramalus.weebly.com/uploads/1/3/4/5/134576193/8033421.pdfIn PDF document text
    • https://vexakoloninabi.weebly.com/uploads/1/3/4/8/134851928/0699d99d163.pdfIn PDF document text
    • http://ragexerate.22web.org/48040357444.pdfIn PDF document text
    • http://thelait.pro/dufobad4s5n.pdfIn PDF document text
    • https://dekaraguw.weebly.com/uploads/1/3/4/5/134511216/saralalot_votoma_puxuru.pdfIn PDF document text
    • https://cdn.sqhk.co/zasokolof/hfig4im/vosiwakox.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484612/normal_5febdcb8e997a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366632/normal_60195994ced26.pdfIn PDF document text
    • http://aicberg.net/can_cops_look_at_snapchatsvhczi.pdfIn PDF document text
    • http://rastet-malysh.ru/what_are_the_three_levels_of_hierarchy1wr13.pdfIn PDF document text
    • http://samo-katim.ru/buvenetb20r.pdfIn PDF document text
    • http://edaeda.moscow/origami_ryujin_3.5_paper_sizej64zk.pdfIn PDF document text
    • http://helplnstagramcontact5087423.com/49127689010xd3tk.pdfIn PDF document text
    • https://denosuzasagi.weebly.com/uploads/1/3/2/7/132712615/sotalurur-dafowil-wexavomirexum-kufiruv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gitakatad.epizy.com/32542643794.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_off0000e3ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3CA 5556 bytes
SHA-256: bc2e98114493e0045e492856f04ce2ceec82f0950de36822f3a705d9788b2e76
font_01_sfnt_off0000f69e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF69E 10104 bytes
SHA-256: d20f8d92c1b02e6a208f02e9803dbd2ae607158888f23038bfb46767db992134