Malicious PDF — malware analysis report

Static analysis result for SHA-256 953c38c55e2a65b0…

MALICIOUS

PDF

42.5 KB Created: 2020-08-25 03:19:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 470bed8153bf71bd72a559d02949888e SHA-1: 8e7b9e38081db15f47ec07a9b8ce663d9e19d3d1 SHA-256: 953c38c55e2a65b06b3b9ef0466aa723731f6d410ca3025fe21f9199c05ad921
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a critical redirector link pointing to a known malicious domain. The document body, though heavily obfuscated, contains text related to citation formats and the malicious URL. The primary attack vector appears to be luring users to the `ttraff.cc` redirector, which likely leads to further malicious content or exploits. No scripts were extracted, limiting the analysis of direct execution or persistence mechanisms.

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=apa+citation+format+example+with+multiple+authors
    • http://files.atelei.com/uploads/1/3/1/1/131164424/folawujude.pdf
    • http://kafibala.goldenpandarestaurant.com/uploads/1/3/0/8/130813650/duzuninat-zapiwokuzew-jorigijomuvowij-jekeragob.pdf
    • http://files.frederickdressage.org/uploads/1/3/1/1/131163943/wekusidulibubob_totidoxi_surogipujutofe_kirutezodurem.pdf
    • https://cdn.shopify.com/s/files/1/0438/4954/7938/files/vapenodomefofujagu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1613/4562/files/eye_wash_station_inspection_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0460/6433/7051/files/simultaneous_equations_worksheet_with_answers_tes.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/catalogo_avon_campaa_14.pdf
    • https://cdn.shopify.com/s/files/1/0428/2561/3475/files/jovesugigemerusodoxujog.pdf
    • https://cdn.shopify.com/s/files/1/0432/1827/2423/files/how_to_make_a_sprite_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0437/0300/9430/files/fulikibedap.pdf
    • https://cdn.shopify.com/s/files/1/0428/7512/5919/files/get_font_from.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b73.bin
66ec02af8f8890e8a57501e1b66da4cf2b7e60d709389f8e6b0149e2e013c87b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B73 5288 bytes
font_01_sfnt_off00006d48.bin
5c94eeda07c448d9df46d10c6bddbc3bf54b038fc72bd8fc1c50ca66d669a279		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D48 10040 bytes
font_02_sfnt_off00008f44.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F44 4324 bytes

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