Malicious PDF — malware analysis report

Static analysis result for SHA-256 202ed5d645f9a130…

MALICIOUS

PDF

69.1 KB Created: 2020-11-21 02:30:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 617483737ea2c9c7d53013fdb0070b76 SHA-1: d2d24d6769633f71a9cf4b6f89bcabd23aadaf7e SHA-256: 202ed5d645f9a130c4b9af0022f116877694509ba59544cd3bb19d0233d12cf0
186 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. It uses brand-impersonation credential phishing. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://pidadilux.weebly.com/uploads/1/3/4/6/134666204/sesakaf.pdf.
  • 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/123?utm_term=d%2526d+campaign+generator PDF link annotation
    • https://pidadilux.weebly.com/uploads/1/3/4/6/134666204/sesakaf.pdfIn PDF document text
    • https://zojajodasu.weebly.com/uploads/1/3/4/3/134354616/8671438.pdfIn PDF document text
    • https://duzebovad.weebly.com/uploads/1/3/4/3/134316699/korifodamibeto.pdfIn PDF document text
    • https://kowevufewes.weebly.com/uploads/1/3/4/3/134388306/xilokivet-mapiparijibevup-juvopasusepa-mepepelizimonuk.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/sefaritonos-nukivafeka-retisebop-regaxumex.pdfIn PDF document text
    • https://nezumise.weebly.com/uploads/1/3/4/2/134265586/xinege_tozoreki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374009/normal_5f8f773dc02e1.pdfIn PDF document text
    • https://panidulupeju.weebly.com/uploads/1/3/0/9/130969186/siwofesapenopiv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368735/normal_5f89aa2693c1e.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/pokobu-pidoror-pekirez.pdfIn PDF document text
    • https://getugegifajit.weebly.com/uploads/1/3/4/4/134481189/nibolutapadil_gudeveviteb_gutuwotel.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/500d5911-45f0-402e-b3a9-675272b307b5/59486728694.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cee2829-7ea7-4134-8190-357c078c40dd/latunufujivinil.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_off0000caa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAA3 3484 bytes
SHA-256: 866fd8f85cd0130a59e26d5d2ef72782554194052287c2ce3d346dbb443db71f
font_01_sfnt_off0000d610.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD610 10416 bytes
SHA-256: 15a826573124a15c7bb78522cd8f4e4b93be60daefe123d48133350afa9ad9d9
font_02_sfnt_off0000f9c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9C1 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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