Malicious PDF — malware analysis report

Static analysis result for SHA-256 36169be19ee10e76…

MALICIOUS

PDF

40.9 KB Created: 2020-08-25 06:19:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 985dd09edcbe5fc9a6cd7530b96a761c SHA-1: 702c8ef2893431b30add531c0b0c5b8b3c224b4a SHA-256: 36169be19ee10e7687f192fe2aa5318a0786b9022d6f47ab5d70ad29129215d1
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The document body, though partially corrupted, contains text related to 'Iphone bedtime sounds' and includes the malicious URL 'https://ttraff.cc/pify?keyword=iphone+bedtime+sounds'. This suggests a phishing or scam attempt designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=iphone+bedtime+sounds
    • http://vakonow.doublejoutfittersny.com/uploads/1/3/1/6/131606271/2717341.pdf
    • https://cdn.shopify.com/s/files/1/0438/6032/8608/files/botegurulov.pdf
    • https://cdn.shopify.com/s/files/1/0432/5294/0968/files/fuvuxixanuw.pdf
    • https://cdn.shopify.com/s/files/1/0430/7202/8833/files/73265744315.pdf
    • https://cdn.shopify.com/s/files/1/0431/7410/1149/files/buguxumefajasesajuwo.pdf
    • https://cdn.shopify.com/s/files/1/0440/8636/2264/files/dabezokufifalewaposavuke.pdf
    • https://cdn.shopify.com/s/files/1/0441/1473/9352/files/demand_draft_form_kaise_bhare.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vixegenosevisime.pdf
    • https://cdn.shopify.com/s/files/1/0447/9008/7829/files/audited_financial_statements_philippines.pdf
    • https://cdn.shopify.com/s/files/1/0465/2374/4414/files/after_pulse_game.pdf
    • https://cdn.shopify.com/s/files/1/0461/9888/2467/files/77783700889.pdf
    • https://cdn.shopify.com/s/files/1/0438/2585/6669/files/gabula.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_off000063b8.bin
bcefef121f0bf6a43219bbf883f72acabfba579cb5dba55adc4ab2697884ca70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63B8 4940 bytes
font_01_sfnt_off0000744d.bin
9d0568f1b1c2cee6a13e4717fdc8d1098d3cc3e78643f4fe68e6951e68becc18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x744D 10060 bytes

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