Malicious PDF — malware analysis report

Static analysis result for SHA-256 421741bbb98044b1…

MALICIOUS

PDF

42.6 KB Created: 2020-08-08 21:31:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5af194f7c0395bb991b6115aca8f8cac SHA-1: 0d9a34623cba9abdaf4f864124aeabb1b2ce36eb SHA-256: 421741bbb98044b110cf325ce29274bdab6157bd97167c532bd387076d788e37
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector infrastructure at ttraff.com. The document body, though heavily obfuscated, contains text related to 'Aulani resort map pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm designed to obscure the malicious destination.

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=aulani+resort+map+pdf
    • http://zoxopubes.evanselectric.net/uploads/1/3/1/6/131636612/bumewaf.pdf
    • http://files.inkwell-tattoos.com/uploads/1/3/0/8/130813357/9c9d6.pdf
    • http://files.calilovewine.com/uploads/1/3/2/6/132681304/4728745.pdf
    • http://files.robertyuphoto.com/uploads/1/3/0/7/130775084/kimalobawefepuju.pdf
    • http://bujiziko.youngeyephotography.com/uploads/1/3/1/6/131637136/2025513.pdf
    • https://cdn.shopify.com/s/files/1/0429/8709/4177/files/nogupud.pdf
    • https://cdn.shopify.com/s/files/1/0433/4639/5304/files/land_contract_form.pdf
    • https://cdn.shopify.com/s/files/1/0434/0056/0803/files/koxixagupewipozojosad.pdf
    • https://cdn.shopify.com/s/files/1/0428/2171/4076/files/72489443632.pdf
    • https://cdn.shopify.com/s/files/1/0430/7612/4821/files/hygienic_practices.pdf
    • https://cdn.shopify.com/s/files/1/0431/7839/3749/files/ielts_writing_task_1_useful_vocabulary.pdf
    • https://cdn.shopify.com/s/files/1/0438/4679/5424/files/magento_invoice_template_edit.pdf
    • https://cdn.shopify.com/s/files/1/0434/4971/2807/files/besaredojikewugewuw.pdf
    • https://cdn.shopify.com/s/files/1/0448/2092/2528/files/analytical_chemistry_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0434/1517/5317/files/salefukevebenuruvaxerekoz.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/38068222319.pdf
    • https://cdn.shopify.com/s/files/1/0438/4302/7106/files/wanhao_duplicator_i3_plus_cura_settings.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_off000067e1.bin
47e1fde01801b544302eaa564992d24a96aa1e627cf5ac016088ee381bd09c10
pdf-font-stream PDF embedded font (sfnt) at offset 0x67E1 5176 bytes
font_01_sfnt_off00007966.bin
13b603367d44fdfb65bf5bfc85f46a31c49c073e0a1a07a3f1d94a8a4a398556
pdf-font-stream PDF embedded font (sfnt) at offset 0x7966 10628 bytes