Malicious PDF — malware analysis report

Static analysis result for SHA-256 d04dbb0eedf91ab5…

MALICIOUS

PDF

50.4 KB Created: 2020-08-09 01:09:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 536b14dab4fd113b55b6a6d99cb17299 SHA-1: 5963d11e78fd0f5fa0c5cc11ad4fc25bb87fb8ba SHA-256: d04dbb0eedf91ab59098257cb69c167cae2be8a423ba310071d239dd92881db0
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=70+532+braindumps+pdf'. The document body also contains this URL and references '70 532 braindumps pdf', suggesting a lure to trick users into clicking the malicious link. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy to obscure the malicious destination. No scripts were extracted from this sample.

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=70+532+braindumps+pdf
    • http://gowasa.byfieldschool.com/uploads/1/3/0/7/130776485/peviromiju_voler_disapigobi.pdf
    • http://files.caseygetscreative.com/uploads/1/3/0/8/130814718/9544677.pdf
    • http://files.wnylakers.com/uploads/1/3/0/7/130739318/gajimaxisol_budam_dalen_gilagabitewovus.pdf
    • http://files.homeimprovementandrenovations.com/uploads/1/3/1/6/131637055/rosekibujojave_lotaz_fitomudufutokox_jovozowon.pdf
    • http://files.msqg.org/uploads/1/3/1/1/131164431/2cb173b042.pdf
    • https://cdn.shopify.com/s/files/1/0431/5840/5274/files/air_conditioner_cycle_diagram.pdf
    • https://cdn.shopify.com/s/files/1/0432/6470/4665/files/82034074084.pdf
    • https://cdn.shopify.com/s/files/1/0431/5077/0333/files/44574887628.pdf
    • https://cdn.shopify.com/s/files/1/0448/3085/1233/files/alimentacion_parenteral_en_recien_nacidos.pdf
    • https://cdn.shopify.com/s/files/1/0435/5381/6728/files/mexujalu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5376/0162/files/17287521344.pdf
    • https://cdn.shopify.com/s/files/1/0432/0316/6372/files/55132443669.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75130531250.pdf
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/31904772846.pdf
    • https://cdn.shopify.com/s/files/1/0435/0718/7872/files/ketoasidosis_diabetikum.pdf
    • https://cdn.shopify.com/s/files/1/0436/6077/1481/files/4121088644.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_off00007b12.bin
bff3ae501c1b5059a92696ea56816293a70da063d99b246c875cd4fae753a1f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B12 5844 bytes
font_01_sfnt_off00008ed9.bin
10ac2f7baafc40dd84c818307b7fd62a9b10ca8fb626ddc3cb610c71cfb82b6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8ED9 14652 bytes

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