Malicious PDF — malware analysis report

Static analysis result for SHA-256 2efe0750f61f2ac1…

MALICIOUS

PDF

82.0 KB Created: 2021-03-15 10:55:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 03f5281dd955fed89a34d207784b865c SHA-1: 4f155a12ff09a522f29fdb87f28c84385e136154 SHA-256: 2efe0750f61f2ac15bf1613cefccefdb73340c634e157449e2076880f9e6afb3
196 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many pointing to SEO-optimized redirectors, indicating a link farm designed for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were directly extracted, the PDF structure and embedded URLs point towards a phishing lure disguised as a manual.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://lozipotod.ru/wix?keyword=tyt+md-2017+manual+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4425487/normal_5ffb1744cf538.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxalirudidel/minority_report_short_story_characters.pdfIn PDF document text
    • https://pegujugadul.weebly.com/uploads/1/3/1/6/131637136/vozuwabizazojumuf.pdfIn PDF document text
    • https://tafubevodila.weebly.com/uploads/1/3/4/0/134016741/taxibogunigigem_bifemesu_fenoruwok.pdfIn PDF document text
    • https://s3.amazonaws.com/bisapovepizaj/htc_m8_mini_price_in_nigeria.pdfIn PDF document text
    • https://jomigotub.weebly.com/uploads/1/3/4/7/134748998/paladebuvaf.pdfIn PDF document text
    • https://jenazikefu.weebly.com/uploads/1/3/4/0/134017187/177f66b506f7a.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/2009_porsche_cayenne_manual_transmission.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477408/normal_600fe8d39f3db.pdfIn PDF document text
    • http://lasomupigo.iblogger.org/nebaxuzuwofubimel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384647/normal_6011726abc74c.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/unity_game_design_software.pdfIn PDF document text
    • https://xozemupugumofu.weebly.com/uploads/1/3/4/3/134320042/960939.pdfIn PDF document text
    • https://lajizifoposu.weebly.com/uploads/1/3/5/9/135958207/xopajuporu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403954/normal_60119bfa13159.pdfIn PDF document text
    • https://lutavazakagege.weebly.com/uploads/1/3/1/3/131398084/b09784cda249.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387712/normal_5fd643d2f1ec5.pdfIn PDF document text
    • http://golegujunag.iblogger.org/53173560875.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382965/normal_603b2e30a91e0.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
    • http://xefobimulekojuw.epizy.com/mumaboki.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7BE 2960 bytes
SHA-256: ffe008f00bdab04e42d0fb58581e94ebe343bab047a3ea3be819508d06260cf3
font_01_sfnt_off0000f22e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF22E 5008 bytes
SHA-256: 2c1cf47b3e262c6e821d22c3264613f122842438040bbc3b7d00aa1f7d8fa275
font_02_sfnt_off00010335.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10335 12116 bytes
SHA-256: cfbd25f7f89ee102f41d4f3a33ebe773f1af58a8512fdc29be46011e9f51065e
font_03_sfnt_off00012be2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BE2 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230