Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e8639dfe91ea20f…

MALICIOUS

PDF

40.8 KB Created: 2020-08-11 05:27:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ba2ace34969df1807bc93029dedc0559 SHA-1: a77f0df106d19c4ce697cf31314945e9c21c65c5 SHA-256: 5e8639dfe91ea20fe88db975832109328bef1df9a94b07efcf004eb1bdbbf2a8
262 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and SEO link farming, specifically pointing to a payment redirection lure. The embedded URLs, particularly the one on 'ttraff.com', are flagged as malicious redirectors, suggesting the document's purpose is to lead users to a phishing or scam site. Although no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to trick users into clicking through to a malicious destination.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=tally+erp+9+voucher+entry+pdf In PDF document text
    • http://files.artbylatiolais.com/uploads/1/3/0/8/130813934/zutivazemedego_noxorelevawipon_raxevatud_zigemopol.pdfIn PDF document text
    • http://files.sdlandsurveyor.com/uploads/1/3/1/4/131438059/xukitaronukuju.pdfIn PDF document text
    • http://kuwivo.thetruthhemp.com/uploads/1/3/1/0/131070872/1512424.pdfIn PDF document text
    • http://files.stjohnfrederika.org/uploads/1/3/1/3/131398246/supofaxusatiruno.pdfIn PDF document text
    • http://files.fullcirclecounselling.com.au/uploads/1/3/2/6/132681826/gitujiroboker.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/1/0430/2969/2577/files/accelerator_driven_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8266/1526/files/css_chemistry_past_papers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4702/4805/files/8421291016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5687/3128/files/99695246994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7238/8246/files/jegunagobefupojetexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8914/9608/files/lasuxezaxefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tebagomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5602/9093/files/c_xml_to_json.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4757/4949/files/cloud_9_github.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2381/0203/files/68510370283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6933/files/quando_quando_lyrics.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_off00006216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6216 5332 bytes
SHA-256: 8b3f0a199385e4f4e037c496b39a702b6b7c83b46ee1b48115139b7c8ff136d1
font_01_sfnt_off00007445.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7445 10068 bytes
SHA-256: a02504256a1606e838498d8d934cea13ef05829ebc95b5606729cf2110f25c40