Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb0119677c235be6…

MALICIOUS

PDF

92.3 KB Created: 2021-03-31 12:02:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ecbbe58206ac1e30f75d74fb631e3c34 SHA-1: dccbc4d4e632a32f514a66b015e76f6f0178c8db SHA-256: fb0119677c235be6d894a75512ec1d066f6010151d1de4f0bf83fa7c0982d965
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though partially corrupted, suggests a lure related to nuclear energy, which is a common tactic for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/wix?keyword=energia+nuclear+ventajas+y+desventajas+wikipedia
    • http://tublitalia.space/lilasald3mg.pdf
    • http://iglivesupportteam.com/nupik4tiox.pdf
    • http://study-english-05.site/sweat_lynn_nottagewxvd8.pdf
    • https://cdn-cms.f-static.net/uploads/4453115/normal_600ed508050fa.pdf
    • https://cdn-cms.f-static.net/uploads/4368237/normal_604d185c85503.pdf
    • http://sexesex.site/fowujojogavibumufivung3ma1.pdf
    • https://cdn-cms.f-static.net/uploads/4387050/normal_6011ddce24f7f.pdf
    • http://fallofelin.online/latitude_e6410_laptop_manual7rboa.pdf
    • http://belplitka.ru/81125030414a3coi.pdf
    • http://complerbnp.com/iss_hd_live_view_earth_live_app_downloadllxsx.pdf
    • http://feedbacrnz.space/17324953825b038i.pdf
    • https://static.s123-cdn-static.com/uploads/4367687/normal_5ffa1204c051b.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/vexosafugunu/what_is_ponniyin_selvan.pdf
    • https://uploads.strikinglycdn.com/files/611da824-54f4-451e-9916-ef132f3663f9/94277664892.pdf
    • https://s3.amazonaws.com/vavapekadoliti/what_does_your_sacred_cow_mean.pdf
    • https://s3.amazonaws.com/gowebabuxogiro/how_to_program_your_chamberlain_garage_door_remote.pdf
    • https://s3.amazonaws.com/nafamaragisek/final_fight_arcade_game_apk.pdf
    • https://uploads.strikinglycdn.com/files/a1504988-2e75-4eb4-9b25-c895ee72645a/how_long_do_breville_toaster_ovens_last.pdf
    • https://uploads.strikinglycdn.com/files/67e511b1-4fa3-45cb-b4f6-07a5557a4e16/what_is_meant_by_text-to-text_connections_in_reading.pdf
    • https://s3.amazonaws.com/werowibovezoje/bsf_tradesman_answer_key_2019_jobriya.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012505.bin
da17f8632fd7261e88218bda40935df105140e4aa2ba6700c265043a80690b4c
pdf-font-stream PDF embedded font (sfnt) at offset 0x12505 5592 bytes
font_01_sfnt_off00013843.bin
f0c68aa91552536f3cb0dee0f696d77bdb4b44a1722c8e9faa191a5852dfff5e
pdf-font-stream PDF embedded font (sfnt) at offset 0x13843 12916 bytes