Malicious PDF — malware analysis report

Static analysis result for SHA-256 a47c085a4a0a429b…

MALICIOUS

PDF

113.5 KB Created: 2020-08-02 23:57:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e8f71f1ff207c3221b978893576d67d SHA-1: 22dda468d930b0353ad25ceef521b3193d23f1ff SHA-256: a47c085a4a0a429b789e00d53cbb489ba621cb6416a2d0a371f25783bd2226c5
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one pointing to a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a tactic to manipulate search engine results or distribute malicious content. The presence of these links and the malicious redirector strongly indicate an attempt to lure users to harmful sites.

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.ru/pify?keyword=%25D0%25BF%25D0%25BE%25D0%25B7%25D0%25B4%25D1%2580%25D0%25B0%25D0%25B2%25D0%25BB%25D0%25B5%25D0%25BD%25D0%25B8%25D1%258F+%25D1%2581+%25D0%25B4%25D0%25BD%25D0%25B5%25D0%25BC+%25D1%2580%25D0%25BE%25D0%25B6%25D0%25B4%25D0%25B5%25D0%25BD%25D0%25B8%25D1%258F+%25D0%25BF%25D0%25BE%25D0%25B4%25D1%2580%25D1%2583%25D0%25B3%25D0%25B5
    • http://files.connieherbergfineart.com/uploads/1/3/1/4/131407299/cefcda2.pdf
    • http://files.ambervandegrift.com/uploads/1/3/0/7/130775968/fafoxikeburibunow.pdf
    • http://files.hopskipthump.com/uploads/1/3/0/7/130740429/6631528.pdf
    • http://files.plymouthfamilynetwork.com/uploads/1/3/0/9/130969939/mofamakewanaxu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8178/5753/files/disodiwageronubo.pdf
    • https://cdn.shopify.com/s/files/1/0431/9245/1232/files/komaxajuluwovapaja.pdf
    • https://cdn.shopify.com/s/files/1/0434/0924/4317/files/33925024950.pdf
    • https://cdn.shopify.com/s/files/1/0433/9384/3358/files/fakoziwutopug.pdf
    • https://cdn.shopify.com/s/files/1/0432/5274/4356/files/sopobutepe.pdf
    • https://cdn.shopify.com/s/files/1/0429/7061/1861/files/96679464251.pdf
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/kipitovazedisunubovim.pdf
    • https://cdn.shopify.com/s/files/1/0430/1042/4985/files/gisulovojilusizewamejivu.pdf
    • https://cdn.shopify.com/s/files/1/0427/8845/4559/files/21848522869.pdf
    • https://cdn.shopify.com/s/files/1/0432/5117/1478/files/69289274566.pdf
    • https://cdn.shopify.com/s/files/1/0429/3967/8886/files/sotobofasusoranuxazojer.pdf
    • https://cdn.shopify.com/s/files/1/0430/6717/9162/files/69342856299.pdf
    • https://cdn.shopify.com/s/files/1/0435/2229/3920/files/94321280383.pdf
    • https://cdn.shopify.com/s/files/1/0428/7997/5590/files/84221531124.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_off00017316.bin
7340d513eeed8095db26c1b7c0f83a6081624ec7a08348f3df63000762e0f69d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17316 5924 bytes
font_01_sfnt_off000186e4.bin
23b41f186993489c719e330ef950bbb0dc6eab2e8a267c32f4c216f1a3b436ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x186E4 14768 bytes

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