Malicious PDF — malware analysis report

Static analysis result for SHA-256 5922e7ba4e7c14db…

MALICIOUS

PDF

40.0 KB Created: 2020-08-22 12:27:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a087b6c6297952bf6a6e08fdf7d78800 SHA-1: c7d6a56c2feef0b2f9f9afa6761bea434e400242 SHA-256: 5922e7ba4e7c14db0a92e8a52a2bca53aa2e211ad0b1d516eda1343effa95214
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially garbled, suggests a lure related to a 'registration form'. The primary malicious URL identified is https://ttraff.ru/pify?keyword=tceq+above+ground+storage+tank+registration+form, which is likely used for phishing or to serve further malicious content. No scripts were extracted, but the PDF structure and link farm indicate a delivery mechanism for external threats.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.ru/pify?keyword=tceq+above+ground+storage+tank+registration+form In PDF document text
    • http://files.jrleadershipflorencecounty.com/uploads/1/3/1/4/131453733/widile-namojo.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/1/0432/4923/8178/files/10765164414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4314/4355/files/40614500404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0761/4882/files/matirukidoxaxosevuxozifud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5317/7237/files/80586443685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/arch_models_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3633/6551/files/60904543570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9430/1085/files/33732394193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9491/7799/files/89886458796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6738/3713/files/28347176509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8145/7061/files/80930973512.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 1

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_off00005ed9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED9 5648 bytes
SHA-256: 80fc4b5f13c38c7f7a2149ab7aad39cce4b8af45040e820892fbd15829f2781f
font_01_sfnt_off000071f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71F6 9592 bytes
SHA-256: f659b7c7b5a02e3a99adb422f1b07973b433010fa44ae6100bdba9cf9c9a5dd5

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