Malicious PDF — malware analysis report

Static analysis result for SHA-256 8588304204aef3dc…

MALICIOUS

PDF

42.6 KB Created: 2020-08-15 03:01:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3192465f40b609387ec2a7a0817fdd18 SHA-1: 05b85e3a8ae11a0f462d9c3e86a2f55e6f3092ad SHA-256: 8588304204aef3dc68e48e7ea0300c3f497d9f22be08b8acabb6e0a6d8047642
210 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for linking to malicious redirector infrastructure, specifically pointing to a "cyberghost windows 10 crack" lure. The document body also contains this URL and numerous other PDF links, many hosted on Shopify, suggesting a link farm designed to distribute malicious content. The presence of a "password-protected archive lure" heuristic indicates a common tactic to bypass security scanning.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • 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
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://ttraff.cc/pify?keyword=cyberghost++windows+10+crack In PDF document text
    • http://files.cottontailcottage.org/uploads/1/3/1/4/131408970/xutaxegowaki.pdfIn PDF document text
    • http://files.dreamfurs.com/uploads/1/3/0/8/130874369/4117611.pdfIn PDF document text
    • http://voduzoko.jimcohenjudaica.com/uploads/1/3/2/8/132814930/jusatobidolaborut.pdfIn PDF document text
    • http://dajife.mayburydaycamp.com/uploads/1/3/1/4/131453150/wojiwewixogo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4188/1253/files/18663871537.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6197/8023/files/wiwutupibewimugezinob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7963/9967/files/nikalit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/14519645194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1464/4127/files/consecuencias_del_neoliberalismo_en_mexico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8388/8808/files/marc_benioff_book_behind_the_cloud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nebedaxogatasimilore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6158/2755/files/nikajusedelur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73875000904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0939/1261/files/chemical_engineering_design_towler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gifowugebivagobawogun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5593/8725/files/penumuvixirebilutip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9096/0799/files/31304549774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0843/2027/files/9212847005.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_off0000679f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x679F 5668 bytes
SHA-256: 774b539034c87a9e70bf6d1e04d8baba448f63c0fd0ec731ec7d391da9065791
font_01_sfnt_off00007afc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AFC 10004 bytes
SHA-256: c7e058fe4bad7bd228616ee095cc0993fe7aacbc2e932d5a2f324b93cb8443bb