Malicious PDF — malware analysis report

Static analysis result for SHA-256 469df5123a2b5fa8…

MALICIOUS

PDF

37.1 KB Created: 2020-09-13 04:57:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4950341d3cfe7fb8593531993b1fd030 SHA-1: 82623b601c80f03318f72225235c2e91a2584d37 SHA-256: 469df5123a2b5fa8249e4e04c56c433849dbda7aabd6122e3ee88c8b8525779e
120 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, specifically pointing to 'https://ttraff.link/wix?keyword=ik+multimedia+irig+blueboard+manual'. This indicates the document's primary purpose is to trick users into clicking this link, likely leading to further malicious content or exploits. The document also contains a large number of embedded links to other PDFs, suggesting a link farm or SEO poisoning tactic to distribute malicious content.

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.link/wix?keyword=ik+multimedia+irig+blueboard+manual
    • http://files.orchardparkhoa.net/uploads/1/3/1/4/131406372/eb4dedc2f.pdf
    • http://files.daybydaymadellprice.com/uploads/1/3/0/8/130874370/nozaxufu.pdf
    • http://files.casinodealerswebsite.com/uploads/1/3/1/3/131383493/punakonol-visawadij-jusuza.pdf
    • http://padegesi.10thdistrictohio.org/uploads/1/3/1/3/131384169/7334072.pdf
    • http://files.gswlifenetwork.com/uploads/1/3/2/7/132712154/pulonilefon.pdf
    • http://bikaza.northeastnavigators.com/uploads/1/3/1/8/131856158/bikojisolojegamivuva.pdf
    • http://files.christiancyclingtucson.org/uploads/1/3/1/4/131407823/257300.pdf
    • https://static.usrfiles.com/ugd/74147a_e7ec60d6ec124c639a2ec5b3a8d57879.pdf
    • https://static.usrfiles.com/ugd/c57cae_183e7aedfe644fafbc5356f914461868.pdf
    • https://static.usrfiles.com/ugd/4bdc6d_ee1fead0fb934ae3af90b987940c3cb7.pdf
    • https://static.usrfiles.com/ugd/017c44_02dafad1e43c42da85d6c520c706d1ce.pdf
    • https://static.usrfiles.com/ugd/12745a_025d0422b4bb4a1a94dba00f25dc3ffe.pdf
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/water_supply_and_sanitary_engineering_by_rangwala.pdf
    • https://cdn.shopify.com/s/files/1/0431/1000/6940/files/happy_birthday_wishes_pics.pdf
    • https://cdn.shopify.com/s/files/1/0433/3420/5590/files/93843694470.pdf
    • https://cdn.shopify.com/s/files/1/0429/8519/3621/files/spanish_to_english_translation_exercises_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0437/1313/4743/files/10283520523.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_off00005114.bin
058fc9db13d451ec0933b127ecfcd5430525bc3bed2d6eb63619e8b5bdca12d3
pdf-font-stream PDF embedded font (sfnt) at offset 0x5114 5108 bytes
font_01_sfnt_off0000625c.bin
0754b87e09328d234f6f541591c5636e52258a97832e324b6597895fdf189e33
pdf-font-stream PDF embedded font (sfnt) at offset 0x625C 10824 bytes