Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c13334d0f031b12…

MALICIOUS

PDF

49.1 KB Created: 2020-08-18 14:21:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 652c3805a746dd345d5c7ee81d60e6e1 SHA-1: 7f1b9ebcbb8be0b89510a74bea070bc33cdea89a SHA-256: 2c13334d0f031b1272461d5b0013d56780c08576f6cf2e8b077843f45b697526
160 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link and a link farm, suggesting a social engineering lure. The document body, though heavily obfuscated, contains text related to 'Dailymotion video' and includes the malicious URL https://ttraff.ru/pify?keyword=dailymotion+video+er+online+hd. The heuristic 'SE_BROWSER_INSTALL_LURE' further indicates that the document is designed to trick the user into performing an action, likely clicking the malicious link to view 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.
  • 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 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=dailymotion+video+er+online+hd
    • http://paxogiwo.marlahoffman.com/uploads/1/3/0/7/130776265/350d9.pdf
    • https://cdn.shopify.com/s/files/1/0431/7547/7416/files/63202208678.pdf
    • https://cdn.shopify.com/s/files/1/0430/9372/1255/files/difference_between_basel_2_and_basel_3.pdf
    • https://cdn.shopify.com/s/files/1/0428/1345/6550/files/48966412630.pdf
    • https://cdn.shopify.com/s/files/1/0429/3902/3526/files/acrobat_reader_mac.pdf
    • https://cdn.shopify.com/s/files/1/0430/8742/9785/files/gukizepojelez.pdf
    • https://cdn.shopify.com/s/files/1/0435/5093/3155/files/3919996320.pdf
    • https://cdn.shopify.com/s/files/1/0448/3258/7936/files/aashto_m145_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/6516/3422/files/aashto_m288_17.pdf
    • https://cdn.shopify.com/s/files/1/0436/6788/2134/files/english_amharic_oromo_dictionary.pdf
    • https://cdn.shopify.com/s/files/1/0430/7196/3296/files/anatomical_terms_quiz.pdf
    • https://cdn.shopify.com/s/files/1/0429/7087/4009/files/dbz_hyper_dimension.pdf
    • https://cdn.shopify.com/s/files/1/0431/2930/7296/files/palladium_fantasy_rpg_download.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_off000075e0.bin
0ddf3eba0f19a73cbc3fe8b8faa6894d25cf4b6239c73ee4e71ab3ad5a175648
pdf-font-stream PDF embedded font (sfnt) at offset 0x75E0 4836 bytes
font_01_sfnt_off00008622.bin
b4f9e6ab23a529da0fb26cb34821a6e6380dcf338ef9d1ad1064f15ed32ad24b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8622 10580 bytes
font_02_sfnt_off0000a9f3.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0xA9F3 4324 bytes