Malicious PDF — malware analysis report

Static analysis result for SHA-256 964f4ccbfe00b437…

MALICIOUS

PDF

35.7 KB Created: 2020-08-21 15:29:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f9f083d07b200aeeb7a268e67162273 SHA-1: 3df024d14c25f2c29c7000896d3235fee5cbaa47 SHA-256: 964f4ccbfe00b43704803b799054fab125a2cc288fb6f8df8fd6c0aa0bd537cd
150 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link pointing to 'https://ttraff.cc/pify?keyword=inglourious+basterds+movie++hd'. This indicates a social engineering attempt to lure users to a malicious site, likely for phishing or malware distribution. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of numerous links suggests a content-driven lure.

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=inglourious+basterds+movie++hd
    • http://files.archipelagourbanfarm.com/uploads/1/3/0/8/130814411/venivanu-rolimamede-vumuvabaw-duxadekako.pdf
    • http://files.morenomoretti.com/uploads/1/3/0/7/130776267/2925264.pdf
    • http://files.elopemi.com/uploads/1/3/1/8/131857305/8659384.pdf
    • http://ropagi.premierbeachpropertymanagement.com/uploads/1/3/0/9/130969772/055b109d5f5b.pdf
    • https://cdn.shopify.com/s/files/1/0434/1668/2663/files/guided_meditation_music_only.pdf
    • https://cdn.shopify.com/s/files/1/0450/8853/8776/files/bring_me_to_life_guitar_tab.pdf
    • https://cdn.shopify.com/s/files/1/0429/0645/2131/files/ronofikasagawopeliguvipor.pdf
    • https://cdn.shopify.com/s/files/1/0431/1344/7584/files/3466266410.pdf
    • https://cdn.shopify.com/s/files/1/0429/8860/1503/files/update_android_apps_remotely.pdf
    • https://cdn.shopify.com/s/files/1/0435/0715/5110/files/data_engineer_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/6130/5756/files/92459363350.pdf
    • https://cdn.shopify.com/s/files/1/0431/4795/2292/files/33463921857.pdf
    • https://cdn.shopify.com/s/files/1/0434/5479/1832/files/anyo_ng_akademikong_pagsulat.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_off00004d45.bin
5605c5da507fc190649f50f877ee2940493828ff17f490ca5f706a7655219bc7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D45 5376 bytes
font_01_sfnt_off00005f66.bin
5abd8fdf6801d1e72444d43b0f3bd40b7271bc91cf1057b7e28bbd25f14ba22d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F66 10244 bytes

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