Malicious PDF — malware analysis report

Static analysis result for SHA-256 80107b85edd4b1e1…

MALICIOUS

PDF

41.7 KB Created: 2020-08-15 06:12:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1d76ec092eda48aae1f395a78312d53 SHA-1: 1a6b05ce8d9837bd232c4aad2bb34da4063f93f2 SHA-256: 80107b85edd4b1e156a4be4bbb17c457c77f3b5ebdeb11a2fb0bae0d7c24ea15
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The primary malicious URL identified is ttraff.com, which is used to redirect to other potentially malicious content. The document body contains obfuscated text and URLs, suggesting an attempt to disguise its malicious nature. No scripts were extracted, but the extensive use of redirector links indicates a likely phishing or malware distribution attempt.

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.com/pify?keyword=android+activity+appcompatactivity
    • http://files.thelovingpath.com/uploads/1/3/0/7/130740073/ginomujuxedij_girejevu_pazeg.pdf
    • http://files.fortydollarserve.com/uploads/1/3/1/4/131452958/34eec6adbc6e.pdf
    • https://cdn.shopify.com/s/files/1/0432/1263/6322/files/how_to_install_ubuntu_on_dell_latitude.pdf
    • https://cdn.shopify.com/s/files/1/0436/0703/1966/files/xogapenani.pdf
    • https://cdn.shopify.com/s/files/1/0450/1300/8534/files/regrouper_plusieurs_ensemble.pdf
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/bexovuvoxufegakina.pdf
    • https://cdn.shopify.com/s/files/1/0428/7922/1919/files/cod4_modded_lobbies.pdf
    • https://cdn.shopify.com/s/files/1/0450/9443/7029/files/despacito_ringtone_song.pdf
    • https://cdn.shopify.com/s/files/1/0430/9352/4634/files/software_quality_assurance_basics.pdf
    • https://cdn.shopify.com/s/files/1/0428/8171/2287/files/c_programming_objective_questions_and_answers_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/libulewipu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3081/4621/files/fejalepalepi.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/47812232518.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_off00006578.bin
8b6fc8eda7a1176a548c6acf6925d9a59abb841f9f08cce5efa7f20bf6b9f062		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6578 5160 bytes
font_01_sfnt_off000076f6.bin
773fc64d40bc73bcd41608d138d8811669656caedcca3508b2f1e7a7e1a6626a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76F6 10360 bytes

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