Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a0dae710928b565…

MALICIOUS

PDF

47.1 KB Created: 2020-08-04 16:42:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0aa79cb805b85094143217a2e5c35ead SHA-1: 739832012706856ecc0c2ca167f81008355eb69b SHA-256: 2a0dae710928b56507e409bfa7f898c074a07f0f0ebea433f6cc4d5a23de5f30
168 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript and multiple external links, including one pointing to a known malicious redirector. The document body text and heuristic firings indicate a social-engineering lure, specifically a browser extension or update installation pretext. This suggests the document is designed to trick the user into clicking the malicious link, likely to download further malicious content or steal credentials.

Heuristics 5

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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=google+chrome+web+to+pdf
    • http://files.andreasclothingstore.com/uploads/1/3/0/7/130775509/777f926.pdf
    • http://files.gettinoutdoorsradio.com/uploads/1/3/0/7/130776265/2914750.pdf
    • http://files.countryeleganceplacerville.com/uploads/1/3/1/1/131164020/tuboxivuretutawifi.pdf
    • https://cdn.shopify.com/s/files/1/0429/0645/2127/files/64575224844.pdf
    • https://cdn.shopify.com/s/files/1/0431/4054/6714/files/tolivuxejapalisisubara.pdf
    • https://cdn.shopify.com/s/files/1/0437/8918/9272/files/rivofotitolefunek.pdf
    • https://cdn.shopify.com/s/files/1/0429/9423/7599/files/jevedu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7034/0772/files/nufalumosedodibazu.pdf
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/87421810575.pdf
    • https://cdn.shopify.com/s/files/1/0432/6945/6028/files/48822304312.pdf
    • https://cdn.shopify.com/s/files/1/0433/9862/7495/files/60369628126.pdf
    • https://cdn.shopify.com/s/files/1/0434/3146/1016/files/80951917954.pdf
    • https://cdn.shopify.com/s/files/1/0434/5207/2089/files/rabuzanugisan.pdf
    • https://cdn.shopify.com/s/files/1/0437/2915/8295/files/roadies_x4_full_episode.pdf
    • https://cdn.shopify.com/s/files/1/0432/9596/5352/files/74350663371.pdf
    • https://cdn.shopify.com/s/files/1/0433/4023/4902/files/85051562590.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c7d.bin
cc7e460114d7791a63ab10fc39af8e4ff28740f4418ac800f052fe898f8118bf
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C7D 5076 bytes
font_01_sfnt_off00007dd9.bin
eda50a4e0fb915b6c1d721c904e3d283a0361180f30cda335f40495b38a4a642
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD9 10296 bytes
font_02_sfnt_off0000a112.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0xA112 4324 bytes