Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2c14863dd8a3a35…

MALICIOUS

PDF

91.8 KB Created: 2021-03-14 23:32:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 259733b17c303a93628a82b009e79b7d SHA-1: b867da330d54caf84e087f95eca9c5ea234f670d SHA-256: f2c14863dd8a3a350b410f69d6464d974923eec4c600a702c640b8834be377c7
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, a common tactic for phishing or directing users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and the ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests malicious intent. While no scripts were explicitly extracted, the presence of external URLs and the phishing heuristic point towards an attempt to compromise the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://soxebez.ru/123?utm_term=havana+piano+sheet+music+free+easy
    • https://static.s123-cdn-static.com/uploads/4485828/normal_6007bb6e9fdd2.pdf
    • https://cdn.sqhk.co/fogobewataja/1CynWlo/city_image_barber_shop_clifton.pdf
    • http://farvestnn.ru/294037267417sz3i.pdf
    • https://cdn.sqhk.co/vabalogu/jQjiczw/37929385637.pdf
    • https://cdn.sqhk.co/tibidimewako/5ghib6c/friv_2017_love_tester_3.pdf
    • http://pedrons.space/haier_ducted_air_conditioner_manualj1tq0.pdf
    • https://cdn-cms.f-static.net/uploads/4380700/normal_6012950919468.pdf
    • https://cdn.sqhk.co/mitugejaxel/pliakge/kowiguvi.pdf
    • https://cdn.sqhk.co/xakutofi/Vjcyggp/harbor_freight_viking_battery_charger_manual.pdf
    • https://cdn.sqhk.co/mujejadalale/dPT68gj/barbie_wedding_dressup_games_free_download_for_pc.pdf
    • http://matteset-spon.space/powerflex_7000_troubleshooting_manualfng14.pdf
    • https://cdn-cms.f-static.net/uploads/4449618/normal_6046646f8a6ef.pdf
    • https://cdn.sqhk.co/mezutowede/Ric4Omg/merge_gun_fire_age_mod_apk.pdf
    • https://cdn-cms.f-static.net/uploads/4443329/normal_5fd6e3914900b.pdf
    • https://cdn.sqhk.co/luwanuriwaba/jcXidLZ/sokiboraxireguf.pdf
    • https://cdn-cms.f-static.net/uploads/4369166/normal_603ee0ea76b5c.pdf
    • https://cdn-cms.f-static.net/uploads/4385410/normal_6016fdaa74dd6.pdf
    • https://cdn-cms.f-static.net/uploads/4450247/normal_6035621c71aaa.pdf
    • http://load-bcp.com/apnea_testhekqi.pdf
    • https://cdn.sqhk.co/wuseguwe/Hzhegf5/memitamelalojakuwuzaw.pdf
    • https://cdn.sqhk.co/gitovera/bU9jfGq/auto_auction_appleton_wi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://034618a9-9b39-4f41-ad18-95bca1d1c80b.filesusr.com/ugd/48d9a1_85e928ce0b5a4936abed1a785d4ee17f.pdf?index=true
    • https://761e60ea-5e0e-4c43-b4c2-f6a9045c608d.filesusr.com/ugd/545033_89d41b642a4d4ebb97f5573040fa1d3e.pdf?index=true
    • https://39ad70c8-6a03-4de2-a89b-b0209cba5754.filesusr.com/ugd/d2759c_45da1e1c631e4805932e53e9cf4575d9.pdf?index=true
    • https://c01188fd-d8af-4b86-846b-090f7ecd58d8.filesusr.com/ugd/9058e5_330e7f28513b4b6199a548399ae62e30.pdf?index=true
    • 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/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011351.bin
8a55b2b2312accd972d39b6f0add57da32c1f080045b314e3293efb05ea6c60c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11351 5348 bytes
font_01_sfnt_off00012566.bin
bd4b05d2b7c013f66b44d8228983c9c4bedf49af9e02b7e4ef99c30c99b85b42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12566 11532 bytes
font_02_sfnt_off00014c2e.bin
b59afbb2f683942213df284fd86cd9422ada0c5f1ffac7698db8c94a40390bc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14C2E 16100 bytes

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