Malicious PDF — malware analysis report

Static analysis result for SHA-256 f989b0b6fa7eaf1f…

MALICIOUS

PDF

51.1 KB Created: 2020-08-17 03:50:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a385a1637e5ce02e44c604c6766022ec SHA-1: 871a4c7484fde4cbdb2edad169343a60d6d874bf SHA-256: f989b0b6fa7eaf1f16bf6cae6e932ca88fe859d851610751c3b84779e76503c1
128 Risk Score

Malware Insights

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

The PDF file contains a lure related to a game leveling guide and embeds a significant number of external links, many of which point to potentially malicious redirectors. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that one of the embedded URLs, 'https://ttraff.ru/pify?keyword=vanilmirth+leveling+guide+talonro', leads to known malicious infrastructure. The 'PDF_SEO_LINK_FARM' heuristic further supports that the document is designed to host a large number of links, likely for SEO manipulation or to distribute further malicious content.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=vanilmirth+leveling+guide+talonro
    • http://koziton.monicaracestheworld.com/uploads/1/3/2/7/132712416/tutomanebexuno-magosawimulida-wepanati.pdf
    • http://files.urbanstreamecology.org/uploads/1/3/1/4/131453076/jamasu-xoxitenotan.pdf
    • http://files.austinurbaninstitute.org/uploads/1/3/1/4/131454143/favewa-piriwuzuxuv-zusudezesa-pamupamal.pdf
    • http://files.colliersdecoys.com/uploads/1/3/0/8/130814387/5312283.pdf
    • http://nafiko.xiphospress.com/uploads/1/3/1/6/131637016/watorisozo_janesiwenidani_movasatupon_libifevivofi.pdf
    • https://cdn.shopify.com/s/files/1/0427/8134/3903/files/31312766717.pdf
    • https://cdn.shopify.com/s/files/1/0427/8163/8812/files/pobamowaguwel.pdf
    • https://cdn.shopify.com/s/files/1/0433/8181/7494/files/dynamic_equilibrium_biology.pdf
    • https://cdn.shopify.com/s/files/1/0440/3278/6597/files/ad_hoc_network_applications.pdf
    • https://cdn.shopify.com/s/files/1/0431/6394/3074/files/ruzipofuvixivenupoler.pdf
    • https://cdn.shopify.com/s/files/1/0433/3443/4974/files/sagutulunujosaforez.pdf
    • https://cdn.shopify.com/s/files/1/0430/5387/5357/files/12652703999.pdf
    • https://cdn.shopify.com/s/files/1/0432/6798/1474/files/angina_de_pecho_inestable_tratamiento.pdf
    • https://cdn.shopify.com/s/files/1/0435/7816/3359/files/27736975434.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/bevesem.pdf
    • https://cdn.shopify.com/s/files/1/0432/2036/9576/files/adenovirus_respiratorio.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_off00008a86.bin
6b2f6fd2cce9ef1f07a4efa5a7a4bb96fcfb976c8d9649695b01b48f705e3bc7
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A86 5088 bytes
font_01_sfnt_off00009ba3.bin
4b86ddb2a833d395bd267690ca836bca608b1e3fda63e18b87f5bc081581f34f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA3 10616 bytes