Malicious PDF — malware analysis report

Static analysis result for SHA-256 e41daf619e66ffa3…

MALICIOUS

PDF

41.1 KB Created: 2020-08-19 00:29:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad6cac438e3122930828f0e466cd4436 SHA-1: 536419f74e87b0f333ef92dc011ff64212122fa8 SHA-256: e41daf619e66ffa34da2ceffe46dd321ffd64018404e2bc89b5d55d0a5065445
150 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, pointing to 'https://ttraff.ru/pify?keyword=vmware+player+12'. This indicates the document is designed to trick users into visiting a malicious site, likely for further exploitation or credential harvesting. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm for SEO manipulation or to obscure the true malicious destination. No scripts were extracted from this sample.

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.ru/pify?keyword=vmware+player+12
    • http://jufarado.theranchantioch.com/uploads/1/3/1/0/131070374/kejupozelopifusabima.pdf
    • http://files.580craftbeermarketplace.com/uploads/1/3/0/7/130740049/2e14941a.pdf
    • http://files.enaakshikotwal.com/uploads/1/3/2/6/132695714/wulaxuzevurusa-paxakariweja-sajofisudal-xefulanotafawot.pdf
    • https://cdn.shopify.com/s/files/1/0434/3873/5517/files/powemabuzexinifekobigid.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6152/files/tarekat_alawiyah.pdf
    • https://cdn.shopify.com/s/files/1/0430/9988/1639/files/tower_defense_king_mod_apk_unlimited_money.pdf
    • https://cdn.shopify.com/s/files/1/0430/8933/0330/files/flysky_gt3b_manual.pdf
    • https://cdn.shopify.com/s/files/1/0440/8187/3048/files/78686962121.pdf
    • https://cdn.shopify.com/s/files/1/0437/3184/5271/files/75056653829.pdf
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/34588605670.pdf
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/63848120998.pdf
    • https://cdn.shopify.com/s/files/1/0437/8768/1954/files/ignou_assignment_cover_page_from.pdf
    • https://cdn.shopify.com/s/files/1/0445/6588/9188/files/astrology_calendar_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/6049/3465/files/trustee_act_1958_vic.pdf
    • https://cdn.shopify.com/s/files/1/0437/8070/2366/files/79747502999.pdf
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/free_guided_progressive_muscle_relaxation.pdf
    • https://cdn.shopify.com/s/files/1/0449/3679/0171/files/variedades_linguisticas_del_peru.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_off00006456.bin
3b367d652c58a01c66958d2b76f0644b877b5894b3409c5610c6cd15598dc797
pdf-font-stream PDF embedded font (sfnt) at offset 0x6456 5128 bytes
font_01_sfnt_off000075ce.bin
f9529a3217bb82337b9eb250470bed9ad842852e8cb8c9e83fd7ae0464ca51f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x75CE 9928 bytes