Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e0eeab2240f0af4…

MALICIOUS

PDF

40.1 KB Created: 2020-08-02 21:26:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6efd45745b2608b064f47b0f614f0e53 SHA-1: 595c1c05c9162aed3ff1b9c71b838f338d1aa910 SHA-256: 3e0eeab2240f0af43eb8d347a37860cc61d88a0f66f45f1aaa77413b1782aacf
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to shopify.com domains hosting other PDFs, and one critical link to a known malicious redirector at ttraff.com. This indicates a link farm or redirection scheme designed to lead users to malicious content. The document body itself contains the text 'What are 10 examples of compound sentences' and the URL 'https://ttraff.com/pify?keyword=what+are+10+examples+of+compound+sentences', suggesting a lure to disguise the malicious redirection.

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=what+are+10+examples+of+compound+sentences
    • http://files.deadliftbrews.com/uploads/1/3/2/6/132683154/kuzekix.pdf
    • http://files.pharmbytes.org/uploads/1/3/1/3/131380759/de6e3beb7c15f2.pdf
    • http://files.opentopcartours.com/uploads/1/3/1/4/131438180/cbea0.pdf
    • http://files.remotesensinglab.org/uploads/1/3/0/7/130740391/paxul-xelenodam-dedogemopes-binulibol.pdf
    • http://files.afrofuturism-game.com/uploads/1/3/1/8/131872149/wupugona.pdf
    • https://cdn.shopify.com/s/files/1/0431/2665/3079/files/33196120233.pdf
    • https://cdn.shopify.com/s/files/1/0437/5671/6183/files/bekebabif.pdf
    • https://cdn.shopify.com/s/files/1/0432/2328/5928/files/rawupexikojafanuvexa.pdf
    • https://cdn.shopify.com/s/files/1/0428/8030/3267/files/79214857185.pdf
    • https://cdn.shopify.com/s/files/1/0433/7840/9622/files/60781339376.pdf
    • https://cdn.shopify.com/s/files/1/0430/5669/3397/files/30203052402.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/momitixunaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/3685/9813/files/mazomesopesumodobixupam.pdf
    • https://cdn.shopify.com/s/files/1/0432/3491/8558/files/86575824165.pdf
    • https://cdn.shopify.com/s/files/1/0439/1282/2939/files/genetic_analysis_an_integrated_approach.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jeravutudab.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_off00005e89.bin
51beb42ad0cb39fa58498928864c4b6bc98a757cacb3cdc971159cc7486fe286		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E89 5668 bytes
font_01_sfnt_off000071bc.bin
2d55f5fa1499cdd12176a98a2a741cb1a93fdc7285a18dc398b751cd7619599c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71BC 9840 bytes

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