Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab404a595f7bfb94…

MALICIOUS

PDF

122.6 KB Created: 2020-08-11 18:05:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7072da79372b39f213ee8adb247c3c2d SHA-1: 308598f2a10dc18d9dc1abf5a0d775978b4e112e SHA-256: ab404a595f7bfb94342234e76563419bbc0d86209b11d1fef935ed673c242464
120 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a malicious redirector and part of a link farm. The document body, though heavily obfuscated, contains a URL that matches the redirector heuristic. This suggests the primary goal is to redirect the user to malicious infrastructure, likely for further exploitation or phishing.

Heuristics 3

  • 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.
  • 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=analyse+financiere+rapport+stage+pdf
    • http://jijepaw.parakleseos.net/uploads/1/3/0/7/130776433/8794301.pdf
    • http://tevaton.considerhimoutreach.com/uploads/1/3/1/3/131383314/fumor.pdf
    • http://files.peterblackphotos.com/uploads/1/3/1/4/131437222/08b718.pdf
    • http://files.steamworkskidslab.org/uploads/1/3/1/4/131406344/kuputugadoj.pdf
    • https://cdn.shopify.com/s/files/1/0433/5396/4712/files/i_choose_you_sara_bareilles_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0431/2399/8874/files/fomepo.pdf
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/accounting_and_finance_for_non_specialists_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/3847/4397/files/caderno_de_caligrafia_para_imprimir_em.pdf
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/morningstar_asset_allocation.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42228357160.pdf
    • https://cdn.shopify.com/s/files/1/0433/1018/6654/files/ayatul_kursi_malayalam_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0438/2933/0077/files/vedoxafufewevagokoseramuv.pdf
    • https://cdn.shopify.com/s/files/1/0438/4302/7106/files/cantilever_building_structure.pdf
    • https://cdn.shopify.com/s/files/1/0432/0411/6637/files/fitadiruzabaleki.pdf
    • https://cdn.shopify.com/s/files/1/0434/0776/9750/files/bizupofikolovumamonopo.pdf
    • https://cdn.shopify.com/s/files/1/0437/4324/8533/files/tidufazotivetomotese.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000197f5.bin
61ecc519c47ed8bd0b9723fffdbf69d391aa47bb677c054d449cfa74118a4fda		 pdf-font-stream PDF embedded font (sfnt) at offset 0x197F5 5416 bytes
font_01_sfnt_off0001aa6f.bin
f3e42dcfc160a4980ab6355ff3f8cb9840ae35ed51b8d707eddbf13dadd45d04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1AA6F 16708 bytes

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