Malicious PDF — malware analysis report

Static analysis result for SHA-256 6018af31fac1febb…

MALICIOUS

PDF

44.3 KB Created: 2020-08-12 10:11:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe1f1d0235652123d152945f48f98f10 SHA-1: 01d7a9e5191538f4adc1624fa0db2c9d768313cd SHA-256: 6018af31fac1febbc27d85508f68aa8a2a416b9512606e3afa1b645747ed1a8b
162 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector pointing to 'ttraff.com'. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting an attempt to distribute malicious content or engage in SEO abuse. The 'SE_INVOICE_LURE' heuristic further supports the interpretation that the document is designed to trick users into clicking these links under the guise of financial information.

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.
  • 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=appropriation+accounts+and+finance+account+pdf
    • http://mavonoziv.mileandathird.com/uploads/1/3/1/8/131857314/8961196.pdf
    • http://files.supercontinent-bp.com/uploads/1/3/0/8/130874567/2350133.pdf
    • http://files.maxtaxw2.com/uploads/1/3/1/3/131384429/0b01966688224e.pdf
    • http://files.thechocolatehousedc.com/uploads/1/3/1/3/131379719/worotopomulem_xutuniditobavud.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/3590/1602/files/10384613597.pdf
    • https://cdn.shopify.com/s/files/1/0431/1125/2132/files/54932488359.pdf
    • https://cdn.shopify.com/s/files/1/0431/7360/9636/files/vufibewikeno.pdf
    • https://cdn.shopify.com/s/files/1/0433/1572/4456/files/alphabet_tracing_workbook.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/silurigud.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fakuwonilojovaxibudebu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9648/9632/files/nisafubumefixajexo.pdf
    • https://cdn.shopify.com/s/files/1/0435/8550/3393/files/beethoven_ode_to_joy_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0434/3444/2908/files/tratado_de_direito_penal_cezar_roberto_bitencourt_parte_geral.pdf
    • https://cdn.shopify.com/s/files/1/0439/3399/1080/files/engineering_mechanics_dynamics_bedford.pdf
    • https://cdn.shopify.com/s/files/1/0431/7741/0720/files/64654481810.pdf
    • https://cdn.shopify.com/s/files/1/0432/3124/8541/files/12736516591.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_off00006f15.bin
85b154ed75a3707515c74545d02c23e4cf0885343e499d73d05650fb81ce8609		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F15 5104 bytes
font_01_sfnt_off00008079.bin
3472b9942858eb474040452f0b7b22e9b934a97b7a46d2a522ace4a574d8a9a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8079 10396 bytes

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