Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf7cf3d3d8e6a815…

MALICIOUS

PDF

82.0 KB Created: 2021-06-08 09:32:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: d966c4e001896c329f42133314b0925f SHA-1: af27df84b0293b36f0cec07ffa0727dbb9889112 SHA-256: bf7cf3d3d8e6a81544a8e941d3b7cadb92903f2c89ec2cae111fd26ac011a9bd
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://synerhu.ru/pbw?utm_term=m3+data+recovery+kuyhaa PDF link annotation
    • https://static.s123-cdn-static-d.com/uploads/4380379/normal_60b3e5125e21c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492259/normal_60292676822f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367279/normal_603428f901fd8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452400/normal_60b7fcc3cb817.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471275/normal_5fee637e7c5f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412570/normal_604ddce0cc221.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421460/normal_6006b10bc23d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413225/normal_5fd2acb59c8fd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480145/normal_5ffc0efa347f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393521/normal_602792806a51d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376404/normal_6029759ee9d6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374700/normal_600fe04a304e9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408461/normal_602e0978b0a68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385647/normal_6023094d72662.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450509/normal_604d98f7cb85e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/1592e920-360c-4367-be28-1534dd1806cf/xuxilukivasiroxij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1a64112-6cea-4e95-bc35-d280c5668807/one_piece_manga_991_spoiler_reddit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d772f72f-dd75-45b7-a154-ddd19977e6ed/kisujobuvux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a55044fe-1692-4386-b76f-ba15947d9e6f/graphing_linear_inequalities_worksheet_tes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c4e462d-970b-4cc4-a650-ad9cb20e8200/define_upwards_in_a_sentence.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4f83afd-31c3-4a7c-b0b5-8f6dccd70059/42346467855.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f5c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5C2 4940 bytes
SHA-256: ac851d60496c7b6d9d5aa4fb07e05796ec6409ddfc78b4fbda015069710f3f17
font_01_sfnt_off000106af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106AF 11048 bytes
SHA-256: 7bf26e029c12e924f2b534ea4bacb8e17a4591250d73a53fcb2ac9bb88d7b542
font_02_sfnt_off00012c65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C65 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

Open this report in the interactive analyzer, or submit your own file for analysis.