Malicious PDF — malware analysis report

Static analysis result for SHA-256 35ac6348035f3567…

MALICIOUS

PDF

72.8 KB Created: 2021-02-03 21:41:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: a32bc549f3df7bda5d7b3dfb84c8d3dd SHA-1: ab06de15916c1f7fbf96a7d8b312ec7a920d7533 SHA-256: 35ac6348035f3567ad9605db3d320cd9acfd2a6134344411dbce5fa375af632f
252 Risk Score

Malware Insights

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

This PDF file is classified as malicious due to its function as a link farm, containing numerous external links pointing to potentially harmful content. The heuristic firings indicate it links to known malicious redirectors and disposable hosting, suggesting an attempt to lure users to phishing or malware sites. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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://crophysi.ru/123?utm_term=how+to+install+spore+patch+6 In PDF document text
    • https://cdn.sqhk.co/doxufojixene/gffjaOd/ponemep.pdfIn PDF document text
    • https://falopizesolirod.weebly.com/uploads/1/3/1/3/131379111/wijuwirovase_muxewol_somaja_gesinukum.pdfIn PDF document text
    • https://gukudobubutagen.weebly.com/uploads/1/3/5/3/135306914/vurumawet.pdfIn PDF document text
    • https://faremuxonebaw.weebly.com/uploads/1/3/4/5/134598019/gebafajex-loket-lelesaru.pdfIn PDF document text
    • https://pagevexositikul.weebly.com/uploads/1/3/5/3/135327712/4e2d3161e93.pdfIn PDF document text
    • https://cdn.sqhk.co/sigidezok/ge8hjjd/pay_91_express_lane_ticket.pdfIn PDF document text
    • https://dakufosaxem.weebly.com/uploads/1/3/4/7/134771611/fc31c6d6391c0.pdfIn PDF document text
    • https://jalusuduzewot.weebly.com/uploads/1/3/1/4/131456012/3502459.pdfIn PDF document text
    • https://sekikeke.weebly.com/uploads/1/3/4/7/134739811/5412323.pdfIn PDF document text
    • http://womenit.space/16943667174j8bfa.pdfIn PDF document text
    • http://adminhalil.com/88844550226iaswh.pdfIn PDF document text
    • http://jilet1.club/xawejunubudz129.pdfIn PDF document text
    • https://cdn.sqhk.co/jotoselu/EPDidhh/sis_vs_bro_new_videos_roblox.pdfIn PDF document text
    • https://cdn.sqhk.co/dubutemaruxu/hhcjghf/zombie_horde_minecraft_mod.pdfIn PDF document text
    • http://dontbeshy.xyz/swepco_arkansas_power_outages2f3p9.pdfIn PDF document text
    • https://cdn.sqhk.co/dovawowo/jpjjggt/59120035209.pdfIn PDF document text
    • http://mynasert.online/7655887098523sx7.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://s3.amazonaws.com/jeromopelurab/84450695536.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_off0000d0d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0D4 5016 bytes
SHA-256: d86dc0cd0cc0997a9bd28e951fb4219e1eb624ae4be52748953a80e38843b2e8
font_01_sfnt_off0000e1de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1DE 11200 bytes
SHA-256: dd32c1a045ffc9fcc6b12b8162050f980d117dfcc0f615362a1427ca94a0b205
font_02_sfnt_off00010809.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10809 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71