Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fd6cb1bf6923dd9…

MALICIOUS

PDF

121.2 KB Created: 2021-03-22 12:53:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4633a62cb1b0a53fb650e3d00f12047a SHA-1: bf03fc04638734679738693c444d73c9b37df96d SHA-256: 7fd6cb1bf6923dd9aa01314005fd6acd742c59e72939f625c13848e95534b860
196 Risk Score

Malware Insights

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

The PDF contains numerous external links, many of which point to an SEO redirector. The primary redirector URL is `https://resalured.ru/aws?utm_term=transformations+of+quadratic+functions+quizlet`, which appears to be part of a link farm designed to trick users into downloading further content. The presence of a ClamAV detection for `Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0` and ML classification strongly indicate malicious intent, likely phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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://resalured.ru/aws?utm_term=transformations+of+quadratic+functions+quizlet PDF link annotation
    • https://s3.amazonaws.com/genukopapovixo/adobe_cloud_error.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/fagakavedetolizelasobe.pdfIn PDF document text
    • https://cdn.sqhk.co/lobinazema/NiaqPhh/armello_android_gameplay.pdfIn PDF document text
    • https://s3.amazonaws.com/wovugi/ipega_9157_bluetooth_gamepad_ios_android.pdfIn PDF document text
    • https://s3.amazonaws.com/kalanejaxutilif/98592995566.pdfIn PDF document text
    • https://xatuzagu.weebly.com/uploads/1/3/0/7/130738971/6812750.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368763/normal_604d04c85dbad.pdfIn PDF document text
    • https://cdn.sqhk.co/boguzivipel/BLFhjyW/best_apps_for_editing_tik_tok_videos.pdfIn PDF document text
    • https://viwuwobigoku.weebly.com/uploads/1/3/1/3/131378942/8059908.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/27160220631.pdfIn PDF document text
    • https://s3.amazonaws.com/bolovopizonuki/angular_4_simple_form_example.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/pevivalemadilejipamoriv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450338/normal_6021404f00677.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453563/normal_5fd2ed9874691.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424330/normal_5fe1894cab0da.pdfIn PDF document text
    • https://s3.amazonaws.com/vokeri/incubus_best_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/gipokegi.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/gawot.pdfIn PDF document text
    • https://cdn.sqhk.co/gikunixa/hGjdIgh/faith_family_academy_waxahachie.pdfIn PDF document text
    • https://belijexulifowa.weebly.com/uploads/1/3/0/7/130738738/rokopizukafagukuxera.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://vejaxuka.epizy.com/agent_vinod_full_movie_watch_online.pdfIn PDF document text
    • http://goviragukipi.epizy.com/96563766457.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016737.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16737 5172 bytes
SHA-256: 929231f2a437b95bf9e1b211164dc51f829b14dbf85359fce2225ce8947b9776
font_01_sfnt_off000178a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x178A1 2776 bytes
SHA-256: 0a36955d396681ffc7e074718ca4fa0455736b59d134c8f41683ae0afed3e613
font_02_sfnt_off00018473.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18473 13716 bytes
SHA-256: 2efa3ff3d313055df14c6cd77ee22680e1153eb46bf69a886a76e47722353e78
font_03_sfnt_off0001b2c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B2C2 16148 bytes
SHA-256: 9def142226f437a2ba4283d976d890154c0e2dbb92bc97532184205699c6e9c0
font_04_sfnt_off0001c7cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C7CD 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361