Malicious PDF — malware analysis report

Static analysis result for SHA-256 809411681f912d6d…

MALICIOUS

PDF

139.5 KB Created: 2022-09-13 15:41:18 +00:00 Authoring application: beraddl (via PDF Master 1.0.1) First seen: 2026-04-01
MD5: b31a7a21e1500981127f9a204d36d388 SHA-1: a9273cb79b8b499908938d1d01b07d276f9731f5 SHA-256: 809411681f912d6dbf1dc57a5878362a42654d905a5060696adec9821890bfd3
304 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0006

Heuristics 9

  • 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.
  • Cracked-software lure uses shortlink/download gateway critical PDF_CRACKED_SOFTWARE_SHORTLINK_LURE
    PDF visible text advertises a crack, serial number, archive, or pirated-software download and pairs it with a shortlink or encoded download gateway. This is a high-confidence social-engineering carrier for unwanted software or droppers; the PDF itself is not a parser exploit.
  • Cracked-software lure uses download-gateway redirectors high PDF_CRACKED_SOFTWARE_REDIRECTOR_LINK_FARM
    PDF contains multiple cracked-software/keygen/serial-key lure links together with long encoded download-gateway URLs or known crack-download redirector hosts. This is stronger than generic piracy vocabulary: the document is an SEO lure that funnels users through redirect/download infrastructure commonly used for adware, unwanted software, or droppers.
  • PDF links to a cracked-software download doorway (base64-obfuscated) high PDF_CRACKED_SOFTWARE_DOWNLOAD_DOORWAY
    PDF's embedded link hides a pirated-software title as a base64 blob inside the URL path/query (and/or carries the ``download|`` doorway-template marker), rather than in visible text. This is a TCPDF-generated SEO doorway that ranks for software-piracy searches and funnels users to fake 'crack/keygen' download pages distributing adware, potentially-unwanted programs, or droppers. The base64 encoding is deliberate obfuscation to evade plaintext lure rules; the PDF itself carries no parser exploit — the risk is the linked crack-download destination.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
    PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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
  • 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 http://starsearchtool.com/fleshiness/ZG93bmxvYWR8aUYzTVc5c2NHdDhmREUyTmpJMk9EQXpPVEI4ZkRJMU9UQjhmQ2hOS1NCWGIzSmtjSEpsYzNNZ1cxaE5URkpRUXlCV01pQlFSRVpk.ZG93bmxvYWQgcDggdjI1LmV4ZQZG9?prebiotic/symbiosis.continuously PDF link annotation
    • https://sportingtip.com/profili-2-30a-link-full-version-download/In PDF document text
    • https://couturepress.com/wp-content/uploads/2022/09/noeket.pdfIn PDF document text
    • https://www.globemeets.com/wp-content/uploads/2022/09/HD_Online_Player_Roy_Movie_Download_In_Hindi_720p.pdfIn PDF document text
    • https://zip-favor.ru/bez-rubriki/sharp-beatjam-rar-link/In PDF document text
    • https://gamelyss.com/wp-content/uploads/2022/09/X_Force_High_Quality_Keygen_Inventor_LT_2016_High_Quality_Keygen.pdfIn PDF document text
    • https://efekt-metal.pl/witaj-swiecie/In PDF document text
    • http://sourceofhealth.net/wp-content/uploads/2022/09/Cubase_Elicenser_Activation_Code_TOP_Keygenl.pdfIn PDF document text
    • https://aerosmith50years.com/wp-content/uploads/2022/09/FSX_P3D_Aerosoft__Split_LDSP_v143_download_for_computer.pdfIn PDF document text
    • https://www.drbonesonline.com/2022/09/13/font-creator-5-6-keygen-free-patched/In PDF document text
    • http://thebluedispatch.com/wp-content/uploads/2022/09/vendfav.pdfIn PDF document text
    • http://getpress.hu/wp-content/uploads/2022/09/jarherb.pdfIn PDF document text
    • http://shaeasyaccounting.com/farming-simulator-18-gold-edition-v-1-8-3-dlc-s-2018-license-key/In PDF document text
    • http://fnaf-games.com/wp-content/uploads/2022/09/Gx_Developer_8103h_Exe.pdfIn PDF document text
    • https://slitetitle.com/camtasia-studio-9-crack-with-serial-key-free-download-high-quality/In PDF document text
    • http://shalamonduke.com/?p=122620In PDF document text
    • https://buycoffeemugs.com/wp-content/uploads/2022/09/McAfee_LiveSafe_Crack_With_License_Key_2020.pdfIn PDF document text
    • https://duolife.academy/image-line-newtone-vst-rar/In PDF document text
    • https://bonnethotelsurabaya.com/promosi/call-of-duty-modern-warfare-2-free-download-crack-multiplayerIn PDF document text
    • https://pigeonrings.com/wp-content/uploads/2022/09/Matlab_R2008a_Crack_Keygen_Download_LINK.pdfIn PDF document text
    • http://nhadatvip.org/?p=13409In PDF document text
    • https://www.globemeets.com/wp-In PDF document text
    • https://gamelyss.com/wp-In PDF document text
    • http://sourceofhealth.net/wp-In PDF document text
    • https://aerosmith50years.com/wp-In PDF document text
    • https://buycoffeemugs.com/wp-In PDF document text
    • https://bonnethotelsurabaya.com/promosi/call-of-duty-modern-warfare-2-free-download-crack-In PDF document text
    • https://pigeonrings.com/wp-In PDF document text
    • http://starsearchtool.com/fleshiness/zg93bmxvywr8auyztvc5c2nhddhmreuytmpjmk9eqxppvei4zkrjmu9uqjhmq2hos1ncwgizsmtjsepsyznnz1cxae5urkpruxlcv01pqlfsrvpk.zg93bmxvywqgcdggdji1lmv4zqzg9?prebiotic/symbiosis.continuouslyIn PDF document text
    • http://www.tcpdf.orgIn 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/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001d83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D83 84784 bytes
SHA-256: 8a12ffe02c80392522a527e42f721ac19918461d2366b43ab316a4b4e1ed1645
font_01_sfnt_off0000a5ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5FF 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261

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