Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9fc60ef10c05d25…

MALICIOUS

PDF

67.1 KB Created: 2020-08-18 22:12:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8704828bcf83403165f125f58f874253 SHA-1: 20cf1fa88dccde8f1ec24b93cf90874c7c3a9e83 SHA-256: b9fc60ef10c05d259d1632800e98f57b974e2e6458171c758bdfa860c6b28c5f
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This URL is presented to the user as a manual for 'asus rog strix x470- f manual', likely a lure to encourage clicks. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on cdn.shopify.com, though the primary malicious indicator is the ttraff.com redirector.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=asus+rog+strix+x470-+f+manual
    • http://suxepewif.crossbackmassage.com/uploads/1/3/0/8/130813108/pojifezuzalevugabab.pdf
    • http://files.filmsolo.org/uploads/1/3/1/3/131379118/gugafujodaz_pezaj_pazasidamun_sofamo.pdf
    • http://tevolamex.3jservices.co.uk/uploads/1/3/0/9/130969465/lafabamatugatopev.pdf
    • http://gejor.stuffedwithaloha.com/uploads/1/3/2/3/132303338/2425212.pdf
    • https://cdn.shop
    • https://cdn.shopify.com/s/files/1/0428/5621/8780/files/bhagavad_gita_chapter_18_chinmaya_mission.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13002849425.pdf
    • https://cdn.shopify.com/s/files/1/0432/2924/9694/files/business_english_b2_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0435/0276/4184/files/design_of_high_performance_negative_feedback_amplifiers.pdf
    • https://cdn.shopify.com/s/files/1/0432/9901/2766/files/porsche_cayman_2014_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/3903/8360/files/age_regression_software.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.pdf
    • https://cdn.shopify.com/s/files/1/0433/5845/3918/files/52970752342.pdf
    • https://cdn.shopify.com/s/files/1/0430/7091/4717/files/varikoxigubofuzafadepax.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18608783112.pdf
    • https://cdn.shopify.com/s/files/1/0437/1211/8952/files/fe_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/1195/6126/files/risk_assessment_theory_methods_and_applications_download.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a535.bin
420bd8f6b686ffe80cf9897db4cd37d0d38fa1ec08ff985ffcf0f031fea7b686		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA535 5252 bytes
font_01_sfnt_off0000b705.bin
9874a48f4eee835c7e53f68241196ce0ddee63b68b53aceac2cc5e1fbd4174c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB705 15476 bytes
font_02_sfnt_off0000e76e.bin
4442b8989337d53c728be584f7d97f6f05a05f66c41ac162a4a01597699b3dea		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE76E 2288 bytes
font_03_sfnt_off0000f0e4.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E4 4324 bytes

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