Malicious PDF — malware analysis report

Static analysis result for SHA-256 e906153f39b614ff…

MALICIOUS

PDF

40.1 KB Created: 2020-08-20 00:21:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b7fb0a03bca460085346e800b251af9e SHA-1: 72d7a396a9e0a40897a09b99dccd0742c4dec555 SHA-256: e906153f39b614ff3635bb791e04e627075b5da3e3e9f4fd0ef66baab2934af0
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a free expense reimbursement form template. This link, 'https://ttraff.com/pify?keyword=free+expense+reimbursement+form+template', leads to known malicious infrastructure. The document also features a large number of external PDF links, many of which point to potentially malicious or unknown domains, suggesting a link farm or redirection strategy. No scripts were extracted, but the presence of a malicious redirector and the overall structure strongly indicate a phishing or social engineering attempt.

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.com/pify?keyword=free+expense+reimbursement+form+template In PDF document text
    • http://files.cachor.org/uploads/1/3/0/9/130969896/3cfa7b2e34e948.pdfIn PDF document text
    • http://wilutavu.mrwillpe.com/uploads/1/3/1/3/131383613/wonesosemukafigewaba.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/1/0430/0495/2735/files/36834509537.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/novorubafiwani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4424/9499/files/conservation_of_momentum_worksheet_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rixozuxixewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7346/0641/files/49957368917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9345/1159/files/cancionero_de_mana_para_guitarra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8144/1181/files/kujafewifabilug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3828/5725/files/83323954408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kozaw.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 5

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_off00005ee4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE4 5208 bytes
SHA-256: 3a8e486028a043d4eddef0f29fb4ce6a9f4729cf56c4494058e11004506d90c5
font_01_sfnt_off00007082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7082 10356 bytes
SHA-256: 7e0c739e9fd089cb3089ee8254eb3c95d8242ed9b7c094e9c9e09a5e121e560b

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