Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5eb4ab40c5b073d…

MALICIOUS

PDF

50.3 KB Created: 2020-08-08 14:24:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dac5f34fa5acebf0b81dabc1b1f0d1c0 SHA-1: b9bb964a60f828e8dba95b60cf9513b8de921945 SHA-256: c5eb4ab40c5b073d316222c7af98f9a26ab4580c03fe2c739c19c0cfae187aef
160 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. The document also contains a heuristic for a 'Browser extension / update installation lure', indicating a social-engineering tactic. The primary malicious URL identified is https://ttraff.cc/pify?keyword=best+free+pdf+reader+for+windows+xp, which is designed to trick users into downloading potentially harmful content by masquerading as a necessary software update.

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.cc/pify?keyword=best+free+pdf+reader+for+windows+xp
    • http://files.curecandidacurecancer.com/uploads/1/3/1/4/131438079/16fb845ca35f47.pdf
    • http://files.alifeworthliving2.org/uploads/1/3/0/8/130874318/lenalaw-fowez-legojumafixixin-tunotababivofen.pdf
    • http://files.iknowpavers.com/uploads/1/3/2/6/132681544/wilil.pdf
    • http://files.wheresmikeg.com/uploads/1/3/1/4/131437246/dotezudatavu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2048/3751/files/doteluluxebazepu.pdf
    • https://cdn.shopify.com/s/files/1/0434/7310/9152/files/xisafuzipexukofegorofideb.pdf
    • https://cdn.shopify.com/s/files/1/0438/2962/4992/files/jofagubomekapetapubonera.pdf
    • https://cdn.shopify.com/s/files/1/0431/0011/0999/files/82533929079.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7904/files/47458013086.pdf
    • https://cdn.shopify.com/s/files/1/0431/6413/9674/files/defopumolonisamuriwokita.pdf
    • https://cdn.shopify.com/s/files/1/0431/8488/1825/files/70418702872.pdf
    • https://cdn.shopify.com/s/files/1/0433/2093/4558/files/agile_project_management_handbook_v2._0_chomikuj.pdf
    • https://cdn.shopify.com/s/files/1/0428/5222/1091/files/tizinomirasorupogosulakub.pdf
    • https://cdn.shopify.com/s/files/1/0433/4118/5189/files/computer_network_cables_and_connectors.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73881495537.pdf
    • https://cdn.shopify.com/s/files/1/0429/4246/4166/files/wasesawil.pdf
    • https://cdn.shopify.com/s/files/1/0432/4016/1435/files/critical_control_point.pdf
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/xududenupaxilewisemizewar.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_off00007a7a.bin
5b34d061138be7dc62391953f67fe556a604df0cf281f48cd13c7e9b1654a18c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A7A 5000 bytes
font_01_sfnt_off00008b9a.bin
100be278f2a77fc8ca40bf1e864969ce15e3317907249e8ec15b2e6544dfdc20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B9A 10100 bytes
font_02_sfnt_off0000ae18.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAE18 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.