Malicious PDF — malware analysis report

Static analysis result for SHA-256 91e5ba48b3443538…

MALICIOUS

PDF

34.8 KB Created: 2020-08-20 01:41:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66ef3d334794077f9ad58bb5104d1030 SHA-1: 1ba7a75e5d9713a8fe0fd1c0cd55671d56f40599 SHA-256: 91e5ba48b3443538b754e2e90f689dc7f76bf0a1d5219a125f3f7d254210dc7e
234 Risk Score

Malware Insights

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

The PDF contains a lure for remote support tools, instructing the user to install or connect with such software. It also contains a mass external PDF link farm, with the primary redirector URL pointing to known malicious infrastructure. The embedded URL https://ttraff.com/pify?keyword=teamviewer+7.+0 is likely part of a phishing or malware distribution chain.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • 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
  • 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.com/pify?keyword=teamviewer+7.+0 In PDF document text
    • http://dewesidu.rolanddescombes.net/uploads/1/3/0/7/130775734/047f5e8f.pdfIn PDF document text
    • http://wuxuz.weiratherdesigns.com/uploads/1/3/2/6/132681670/2133658.pdfIn PDF document text
    • http://files.gftrails.ca/uploads/1/3/1/4/131406827/vowosibajitelolavi.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/1/0434/5040/0920/files/94714983241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0569/7440/files/9408771420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3350/9534/files/naxemujug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/laziximanumoxulixomama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0931/8813/files/42153721879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0386/1416/files/cambridge_igcse_ict_2nd_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6873/5140/files/11309751823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/2713/9482/files/subgeneros_del_genero_lirico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/muvobazixanivapud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1975/4907/files/vozezedatilupevulum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7707/5108/files/kupovolifezufi.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

Related samples 3

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_off00004c8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C8C 4976 bytes
SHA-256: 3c6567dfadc0dbea30815311ee4c7c8850c06a78af8fef7609fd328a120029d4
font_01_sfnt_off00005d85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D85 9752 bytes
SHA-256: cf191d5a315e2d67849cb7f4f8874dff565c70ade8fda57ae708fd811d14a3e0

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