Malicious PDF — malware analysis report

Static analysis result for SHA-256 061186183f829c86…

MALICIOUS

PDF

41.3 KB Created: 2020-08-15 04:27:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 890f256651f8eed1eaf26f17e58d6255 SHA-1: 266464c52e02315196c9f2b95c8951c2d010b913 SHA-256: 061186183f829c86bf402d6d24378a24d77e4f8233804b4780814330388049a5
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The heuristic 'SE_PAYMENT_REDIRECT_LURE' suggests the document's content is designed to trick users into believing it contains updated financial instructions, which is a common business email compromise tactic. The embedded URLs are likely part of a link farm to obscure the malicious redirector.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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.ru/pify?keyword=definition+of+balance+score+card+pdf
    • http://files.castlepointclimateactiongroup.org/uploads/1/3/1/4/131408970/nuganosov.pdf
    • http://gupune.windsurferclassaus.com/uploads/1/3/0/9/130969723/2527577.pdf
    • http://files.belladaisyevent.com/uploads/1/3/0/9/130970022/d23d5e7.pdf
    • http://xavud.covcathcolonels.com/uploads/1/3/1/8/131857419/mubepinigekev-xovola.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/7231/4778/files/85984639304.pdf
    • https://cdn.shopify.com/s/files/1/0433/3905/5258/files/bitavimakudabimu.pdf
    • https://cdn.shopify.com/s/files/1/0437/7234/6526/files/isometric_neck_strengthening_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0436/4474/7929/files/tavedusavogasanuwatiboba.pdf
    • https://cdn.shopify.com/s/files/1/0430/7540/3929/files/49516913283.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99231100330.pdf
    • https://cdn.shopify.com/s/files/1/0435/9992/1315/files/fiviripogiw.pdf
    • https://cdn.shopify.com/s/files/1/0436/8115/3177/files/angry_birds_go_mod_apk_latest_version.pdf
    • https://cdn.shopify.com/s/files/1/0432/7764/8027/files/how_to_download_aadhaar_card_file_without_otp.pdf
    • https://cdn.shopify.com/s/files/1/0432/7899/1513/files/biogeography_articles.pdf
    • https://cdn.shopify.com/s/files/1/0432/7168/4252/files/nilagoletuwu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/sobobekonaxixu.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_off000062f7.bin
60adec245a2b085ba6a16884708d75dcb2a39ab35958dba4b82f4e23581c2f4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62F7 5288 bytes
font_01_sfnt_off000074f9.bin
6328b976acfda0ba54e6364fcc7ba2bdba4f10eb4a0217e8a6c5b8965f95808b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74F9 10368 bytes

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