Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6c82bfe7042f538…

MALICIOUS

PDF

46.3 KB Created: 2020-08-24 05:49:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 773fa94fcaf69147193c65c5263e530f SHA-1: 807e5752862c1f2ea7a5a1edba6c1e8fd40bbc9e SHA-256: d6c82bfe7042f5387899734a79b87ea8426afb59e013a10573c988b11cd44995
282 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a malicious redirector link disguised as a software activator download. It also instructs users to disable security software and install remote support tools, indicating a social engineering attempt to gain system access or deliver further malware. The document body itself is heavily obfuscated but contains the lure text and URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 8

  • 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.
  • 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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=windows+7+ultimate+activator+free++filehippo In PDF document text
    • http://puradug.leverageleadership.org/uploads/1/3/0/7/130740086/7415234.pdfIn PDF document text
    • http://lovum.tsnip.org/uploads/1/3/1/6/131606345/fulovu-nexebexolusip-xigiso.pdfIn PDF document text
    • http://files.milepost0creative.com/uploads/1/3/1/4/131408142/8088500.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/1/0431/6050/2421/files/phpstorm_reformat_code_doesn_t_work.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0636/9703/files/banking_current_affairs_2020_june_banking_awareness.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4932/0597/files/34375821784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5633/9861/files/25156894670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8039/1585/files/brgeramt_berlin_anmeldung.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/cisco_packet_tracer_version_5._3_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3810/5000/files/zozedijakifasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6055/1070/files/32909398477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/2585/0519/files/755958274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1307/8168/files/96109669181.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/calendar_2020_uk.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_off000075b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75B5 5640 bytes
SHA-256: 0f09d73e27b9ce1954941bdac730d21164ca6ada577f2b9c7c0fc4da7935d308
font_01_sfnt_off000088d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88D6 10420 bytes
SHA-256: ddfe4bef78c9791f07c1428f6faca438e1b3708cfde27efff0a68e7d6c8c627d