Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2576edabf883d13…

MALICIOUS

PDF

179.1 KB Created: 2021-05-28 04:54:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: ec3f9f9287edc1a7300e804c1f729099 SHA-1: 79cb30378bd6154bd281e80f1d0367c585d32c07 SHA-256: f2576edabf883d13fb1fb5baebcb57e00294ff0469d5c276e4ac40933ab2a0c6
166 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1190 Exploit Public-Facing Application T1204.002 Malicious Link

This PDF document is identified as a malicious phishing and advance-fee scam lure. It contains numerous external links, with a primary suspicious URL pointing to a site associated with lottery or prize scams. The document's structure and the presence of multiple disposable hosting links strongly indicate an attempt to deceive the user into clicking malicious links, likely for financial gain or credential harvesting.

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://seumenha.ru/strik?utm_term=naruto+jutsu+hand+signs+book PDF link annotation
    • https://batipufiva.weebly.com/uploads/1/3/7/5/137512706/1776203.pdfIn PDF document text
    • https://kaxamutibe.weebly.com/uploads/1/3/5/3/135348628/04cca89b9.pdfIn PDF document text
    • https://xolitosoxi.weebly.com/uploads/1/3/4/5/134583661/furumek_kedijoreta_wumafumuzu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446494/normal_600eae2447b6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486772/normal_60683f7e71685.pdfIn PDF document text
    • https://rerupogom.weebly.com/uploads/1/3/0/8/130874691/11ab92a12e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458407/normal_606139538b649.pdfIn PDF document text
    • https://jawuzinirofona.weebly.com/uploads/1/3/4/8/134886132/9b43079a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389097/normal_60115150c522f.pdfIn PDF document text
    • https://nazugawexavidi.weebly.com/uploads/1/3/4/6/134678572/901098.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412568/normal_6049f4c60d18e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366044/normal_5ff95fdbf087a.pdfIn PDF document text
    • https://rupuleda.weebly.com/uploads/1/3/6/0/136002844/9810166.pdfIn PDF document text
    • https://nejaxadutoxukax.weebly.com/uploads/1/3/4/6/134622523/pezukuv_sukimixaxupam_kamozuwugorimiw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411682/normal_6019c85aba5dd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d37a3549-0d44-4f69-b964-9a5b30131dbb/fevusezufolep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fd49a96-5b76-4152-87c4-c4bedb896cd2/94222772175.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_off0001cda8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CDA8 59700 bytes
SHA-256: f33c4bda6d26877ebf85543bd8245af82523db7e0402318564ddf0d5bae05d27
font_01_sfnt_off000282c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x282C8 5304 bytes
SHA-256: ab24ddbab88c73168f507faea4dee206faee83c50c770bb0ca7688049d04d576
font_02_sfnt_off000294d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x294D4 12828 bytes
SHA-256: 20559fda39519520435122d58bf953ee28f3e0c87f6d5fd8a87ea8b38864b9b0

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