Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c4de40183132ec7…

MALICIOUS

PDF

35.3 KB Created: 2020-08-15 03:56:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80ee993b58ea47ec96409f5ae6cbae1a SHA-1: 9864e67f1ff94ed4eab8fe5aed103ad78b1d92ef SHA-256: 6c4de40183132ec79ea652ab68eb41bd529fbe201398d469b9c3195b4c05672b
154 Risk Score

Malware Insights

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

This PDF contains embedded links that redirect to known malicious infrastructure, specifically a URL related to a "consentimiento informado oms pdf" lure. The document also functions as a link farm, pointing to numerous other PDFs hosted on Shopify. The primary malicious activity observed is the redirection to the ttraff.cc domain, likely intended to phish or deliver further malware. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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/wb?keyword=consentimiento%20informado%20oms%20pdf
    • http://files.jambandpurist.com/uploads/1/3/1/8/131856365/76af5249.pdf
    • http://files.leeclarkemusic.com/uploads/1/3/2/7/132740958/rejopumatewil_kubiwu.pdf
    • http://files.lisawbwalker.com/uploads/1/3/1/4/131438055/zananivubizu-bekufekinu-jixuruk-zomokikesikoba.pdf
    • http://files.amomentfrozen.co.uk/uploads/1/3/1/3/131378779/meruk.pdf
    • http://kejotiw.gillisplayandlearn.com/uploads/1/3/2/6/132682871/pusafawuxera_davav.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/1061/2635/files/78183251032.pdf
    • https://cdn.shopify.com/s/files/1/0437/7251/0362/files/43619339988.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xewujixamugovaginebutomo.pdf
    • https://cdn.shopify.com/s/files/1/0450/9813/9813/files/zen_alarm_clock_sound.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74523611049.pdf
    • https://cdn.shopify.com/s/files/1/0440/3698/0886/files/soprano_saxophone_scales_and_arpeggios.pdf
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/kewadukexokuvobexo.pdf
    • https://cdn.shopify.com/s/files/1/0429/7631/3503/files/24063110793.pdf
    • https://cdn.shopify.com/s/files/1/0437/3449/9479/files/wheel_horse_tractor_parts.pdf
    • https://cdn.shopify.com/s/files/1/0433/7234/7550/files/rewisivigivugusif.pdf
    • https://cdn.shopify.com/s/files/1/0453/3600/2715/files/44468402081.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c7d.bin
f77fd6a7eebd47dc0f3b8bcababbc9ec8e97aec19e54adbd09b3607cd1bf770d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C7D 5060 bytes
font_01_sfnt_off00005d93.bin
1c47e87ca7b3ae8b2f5c323b34f234fbe4815b72e0b5f3cc1cc5e606f0bbcd93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D93 10100 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.