Malicious PDF — malware analysis report

Static analysis result for SHA-256 990d8a9538302a97…

MALICIOUS

PDF

50.9 KB Created: 2020-08-27 20:47:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bdbd93fea5d878144bf851fb4df2a012 SHA-1: a2ce747e20743a1958bdd3f13e5ef3470433f57d SHA-256: 990d8a9538302a97a1c3875c2328edecf3e8ce55dfc3fa63ad43d3ca4e99a382
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=mms+suplemento+mineral+milagroso+comprar'. This URL is presented within the document body, suggesting a lure for users to click and potentially download further malware or be phished. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely used to obscure the malicious redirector.

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.com/pify?keyword=mms+suplemento+mineral+milagroso+comprar
    • http://files.swastikpearls.com/uploads/1/3/1/4/131438419/fetusakivol-xubuf-pinugi-jejepatexov.pdf
    • http://files.aaronjarden.com/uploads/1/3/1/6/131606984/fonakiz.pdf
    • http://files.rebekahlpurdy.com/uploads/1/3/1/1/131164076/9543912.pdf
    • http://pugig.danvilleareametz.com/uploads/1/3/1/6/131637218/c8bd30.pdf
    • http://files.rhbconstructorainmobiliariasrl.com/uploads/1/3/1/4/131453651/7449706.pdf
    • https://cdn.shopify.com/s/files/1/0432/1984/5284/files/27825156052.pdf
    • https://cdn.shopify.com/s/files/1/0432/6434/4219/files/pewubifos.pdf
    • https://cdn.shopify.com/s/files/1/0432/6499/9588/files/69256131089.pdf
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/revipobamaseb.pdf
    • https://cdn.shopify.com/s/files/1/0429/5108/2143/files/outlook_app_calendar_not_syncing_android.pdf
    • https://cdn.shopify.com/s/files/1/0435/1698/5503/files/how_to_copy_from_kindle_c.pdf
    • https://cdn.shopify.com/s/files/1/0434/9755/4084/files/tuwemobem.pdf
    • https://cdn.shopify.com/s/files/1/0429/8099/9321/files/gungeon_infuriating_note.pdf
    • https://cdn.shopify.com/s/files/1/0429/3446/8774/files/77663742488.pdf
    • https://cdn.shopify.com/s/files/1/0432/2312/2077/files/38646532223.pdf
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/ruboziti.pdf
    • https://cdn.shopify.com/s/files/1/0432/3622/9277/files/semizuxigevodetapa.pdf
    • https://cdn.shopify.com/s/files/1/0430/3182/2485/files/alcoro_gratis.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_off0000845f.bin
ee83186b32a4ab82995c4c5b9e537ed697411611102b276bdca7192d08637b0d
pdf-font-stream PDF embedded font (sfnt) at offset 0x845F 5260 bytes
font_01_sfnt_off0000962c.bin
eba763aeeffb6f3c5b9ac78fe9620856e0ce1763b07d9eaf8c7fc89c252c9209
pdf-font-stream PDF embedded font (sfnt) at offset 0x962C 11664 bytes