Malicious PDF — malware analysis report

Static analysis result for SHA-256 17a976037e34c6d0…

MALICIOUS

PDF

82.8 KB Created: 2021-02-02 10:37:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 1c2a639a51972ad019f61c8aee5ec81b SHA-1: 6e8627d6d7ca152a1de2400d0acc7dda9f1e8230 SHA-256: 17a976037e34c6d0c8ec38f561680f851fbd35185db440250e8e488deb8be316
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains a large number of external links, identified as a link farm, with many pointing to disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. While no scripts were directly extracted, the PDF structure and numerous external URLs suggest it's designed to lure users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://druttle.ru/aws?utm_term=manager+class+android+example PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4450419/normal_5fe132499698f.pdfIn PDF document text
    • http://masterpowerpoint.com/83436127474goomi.pdfIn PDF document text
    • https://cdn.sqhk.co/fexejikexew/jhigEC0/torn_labrum_tendon_symptoms.pdfIn PDF document text
    • https://cdn.sqhk.co/tefozakozup/JmQibZC/2.pdfIn PDF document text
    • http://goodnatural.space/37754392090uycks.pdfIn PDF document text
    • http://sq11mini.com/429655295960wt5w.pdfIn PDF document text
    • https://cdn.sqhk.co/zaviresodew/iuae6Y1/hachiman_and_yukino_wallpaper.pdfIn PDF document text
    • https://fazerirusabutef.weebly.com/uploads/1/3/1/3/131381144/3b43c455.pdfIn PDF document text
    • https://cdn.sqhk.co/webuposiba/bhhAiiJ/vulimafogupexomeguve.pdfIn PDF document text
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/vujumavakunab.pdfIn PDF document text
    • http://doweryklkq.space/fallout_4_looksmenu_preseti4dv6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mesuwirafifi.rf.gd/mr._bean_holiday_movie_in_tamilrockers.pdfIn PDF document text
    • http://jukiwifid.rf.gd/pedaga.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/kukewufubomimowuzu.pdfIn PDF document text
    • http://nanisoz.epizy.com/17839765735.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001031a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1031A 5468 bytes
SHA-256: 29ff235d22045c1a9737b303182e4cf9780c78ede5bb6606d780ce98c759c645
font_01_sfnt_off000115ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115AD 12288 bytes
SHA-256: 5254dc3132b1f1b5e9d6769961ff29a15f7ef20d4b948416243f275ca65508db

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