Malicious PDF — malware analysis report

Static analysis result for SHA-256 466848b7e31efd70…

MALICIOUS

PDF

41.0 KB Created: 2020-08-18 15:02:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e0c83404d2a466b9ecc4b715b3a7864 SHA-1: c12cbce16db300b55473e7809ba2db70d97fa97d SHA-256: 466848b7e31efd70b9f631b05d39d89f8817dc74f46493578c786c613feea89f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic indicating it's a malicious redirector link, pointing to a URL associated with a known malicious redirector infrastructure. Additionally, it features a PDF link farm, suggesting an attempt to distribute malicious content or engage in SEO poisoning. The document body, though heavily obfuscated, contains a URL that aligns with the observed malicious redirector behavior.

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=khatrimaza+bollywood+movies++hd+1080p
    • http://logapesob.rumjourney.com/uploads/1/3/1/0/131070450/4963205.pdf
    • http://xesiki.helsbellshandmade.com/uploads/1/3/0/8/130874601/11df1af3.pdf
    • http://mukipaga.bagaducechorale.org/uploads/1/3/1/3/131383613/raloxojijadu_magejonedotede_limorepuruzubut_mamokiduleke.pdf
    • http://nujusima.silverfitnessct.com/uploads/1/3/2/6/132682124/tipor_birizibupeli_govere.pdf
    • http://files.honorthewarriors.org/uploads/1/3/0/9/130969522/wimulanuzosirum.pdf
    • https://cdn.shopify.com/s/files/1/0432/2784/0675/files/62941432120.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/30999015177.pdf
    • https://cdn.shopify.com/s/files/1/0444/4350/0710/files/buffer_in_pharmaceutical_system.pdf
    • https://cdn.shopify.com/s/files/1/0430/8100/7255/files/ruluj.pdf
    • https://cdn.shopify.com/s/files/1/0433/1778/8830/files/65345530611.pdf
    • https://cdn.shopify.com/s/files/1/0429/2011/6387/files/mopusuxomosujegi.pdf
    • https://cdn.shopify.com/s/files/1/0435/5283/3695/files/bhangra_paale_dj_song.pdf
    • https://cdn.shopify.com/s/files/1/0433/9374/5046/files/zanodanav.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87899810879.pdf
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/tonevujakunivirakidelekev.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_off00005f01.bin
bdbc2fe9af7c69d2153b1da4db5f83946265e6b795c0117eda8c29b2045f4ba9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F01 6000 bytes
font_01_sfnt_off00007373.bin
46d2080186e9dae3d9f284b8e934f8093e80bb0f6d7e64bc438e416ede312c1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7373 10520 bytes

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