Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea0b93e7bb223555…

MALICIOUS

PDF

41.2 KB Created: 2020-08-22 01:19:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 666266bd4035c7215e5ae5811ab06321 SHA-1: 8321691b85fe03548e30d97ffc5d42336309f257 SHA-256: ea0b93e7bb22355533849547b9d3a61fd9c2df2c344ac3911599777e5f756be6
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=android+apps+development+tools+list'. This URL is presented within the document body, disguised as a resource for 'Android apps development tools list'. The file also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The primary intent appears to be directing users to malicious infrastructure through a deceptive lure.

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=android+apps+development+tools+list
    • http://files.irishdancect.com/uploads/1/3/0/9/130969507/jewimam_zutowawofela_pebemafofokegog_xazumujefowatin.pdf
    • http://files.prudencehorne.com/uploads/1/3/1/4/131483336/mibefigozakido_bativegewusenub_kokezi_kigub.pdf
    • http://files.global-banking.net/uploads/1/3/1/4/131483149/63ec9f.pdf
    • http://subotu.catcaricature.studio/uploads/1/3/1/3/131398252/xurutizidumirebox.pdf
    • https://cdn.shopify.com/s/files/1/0432/2187/6899/files/20865038079.pdf
    • https://cdn.shopify.com/s/files/1/0441/2401/2696/files/chronicle_of_a_death_foretold_chapter_1.pdf
    • https://cdn.shopify.com/s/files/1/0430/4994/3202/files/28204092395.pdf
    • https://cdn.shopify.com/s/files/1/0432/5703/6968/files/evaluation_of_mucoadhesive_drug_delivery_systems.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/sugapukolixuzatuzavu.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/70570103522.pdf
    • https://cdn.shopify.com/s/files/1/0433/9551/4535/files/homeopatia_libros_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0430/7209/4362/files/52211586370.pdf
    • https://cdn.shopify.com/s/files/1/0431/4575/6833/files/apigee_tutorial_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0431/9815/2866/files/29933225995.pdf
    • https://cdn.shopify.com/s/files/1/0434/5040/0928/files/67255115343.pdf
    • https://cdn.shopify.com/s/files/1/0433/9790/6589/files/solid_waste_management_vtu_notes.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_off00006313.bin
e2dd585642195a48b839e9c65e1428537d2cc3e7be74870822c2f6559b41ca93
pdf-font-stream PDF embedded font (sfnt) at offset 0x6313 5156 bytes
font_01_sfnt_off00007487.bin
57f52e53a502e1017533d343e441a3381ac491bdc8604d4a9d84e6b713ccff77
pdf-font-stream PDF embedded font (sfnt) at offset 0x7487 10284 bytes