Malicious PDF — malware analysis report

Static analysis result for SHA-256 630fa93c59d8c908…

MALICIOUS

PDF

49.1 KB Created: 2020-07-27 13:19:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d9aa82cba382dfa25f2f8c3bb315d93e SHA-1: 6d6c28361470a835994003a12d37d100a2b29953 SHA-256: 630fa93c59d8c9081eebd59002111931d5f334aa49f3c836224d14735550aadb
214 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and link farming, specifically pointing to a redirector URL. The document body, though obfuscated, suggests a lure related to an 'Imf tanzania report'. The presence of numerous embedded links, many pointing to external PDF files, suggests an attempt to drive traffic to malicious or deceptive content, likely for phishing or scam purposes.

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.
  • 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.
  • 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=imf+tanzania+report In PDF document text
    • http://files.bowcreekkennels.com/uploads/1/3/0/7/130739120/2874723.pdfIn PDF document text
    • http://files.joyfulnoiseguitarcentral.com/uploads/1/3/0/9/130969708/jugegatezusufavo.pdfIn PDF document text
    • http://files.letstalkfoundation.org/uploads/1/3/1/4/131437378/bb52cac8c.pdfIn PDF document text
    • http://files.k-mitchell.com/uploads/1/3/1/8/131871729/kenevexodiwezi-sobikuv-wozisesafe.pdfIn PDF document text
    • http://files.spacecoastchristianacademy.com/uploads/1/3/0/7/130776490/rebafutu.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/1/0431/1715/0368/files/bojuposojulaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2263/9527/files/wabodiburufir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3321/5644/files/59974884608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9694/7353/files/36434764374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1458/6521/files/zademetenud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0490/3069/files/16097180165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/difegewolonuzosobevelevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8251/3561/files/24431255196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9114/7417/files/penokabikavipopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7473/8586/files/71686400185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51191810805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/ropijasenamapaweb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1050/6404/files/60758092858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5485/7369/files/81547504478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1887/8114/files/98381833326.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_off0000817a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x817A 4612 bytes
SHA-256: 1cbbfb1d2c1e12c0753a3fd7d053e05fb9b6e4359d11cf6b42d99c4621d18ecb
font_01_sfnt_off000090fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90FA 11128 bytes
SHA-256: 3da4ce0724ebc0687bd4638115f360a09a3562d56c53adfba72ecf56467171e6