Malicious PDF — malware analysis report

Static analysis result for SHA-256 72e70a4f991d4fd8…

MALICIOUS

PDF

70.2 KB Created: 2021-03-06 02:15:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: fa12e266d7904e53859f7a4a973501cc SHA-1: 072c00be1397c232b3a37cfb4a5fdc37485560eb SHA-256: 72e70a4f991d4fd8e94dd3e6ad04bfef3759fbe21afc9ed869efa9f1f2e38a56
126 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous links to external websites, many of which are hosted on disposable domains, suggesting a link farm or redirection scheme. The document body, though heavily obfuscated, contains keywords related to technical queries, likely intended to deceive users into clicking on the malicious URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://leonvi.ru/award?keyword=how+to+reset+rca+converter+box+without+remote PDF link annotation
    • http://nageramuvepom.mywebcommunity.org/66924318804.pdfIn PDF document text
    • http://pepariravifaza.getenjoyment.net/club_car_carryall_1500_service_manual.pdfIn PDF document text
    • https://zexexidiwe.weebly.com/uploads/1/3/5/3/135330220/xujizasafak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426941/normal_601b890530160.pdfIn PDF document text
    • http://tebogekememesij.mygamesonline.org/7981911614.pdfIn PDF document text
    • http://lupelisizi.medianewsonline.com/dr_seuss_happy_birthday_book.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411708/normal_60288567c3fb5.pdfIn PDF document text
    • http://strongcreditscore.info/motor_vehicle_mechanics_textbookw1ktz.pdfIn PDF document text
    • http://dnepr24.info/449613065484724h.pdfIn PDF document text
    • http://vuxilenusip.mypressonline.com/pandora_ring_size_guide_canada.pdfIn PDF document text
    • http://netewe5.xyz/today_s_weather_forecast_for_chicagookxom.pdfIn PDF document text
    • https://bazodezivif.weebly.com/uploads/1/3/6/0/136088162/948821.pdfIn PDF document text
    • https://kokagajimixepu.weebly.com/uploads/1/3/5/3/135331661/506030b66e96.pdfIn PDF document text
    • http://gupirigugorixuf.sportsontheweb.net/ffxiv_the_great_hunt_extreme_unsync.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411480/normal_5fcb785c74d4c.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/novotu.pdfIn PDF document text
    • http://wikotimu.scienceontheweb.net/torupisi.pdfIn PDF document text
    • http://damvglaz0.xyz/kotozadinanebeodg09.pdfIn PDF document text
    • http://reduslimitalia-oficial.site/tera_gathering_guide_2018ydve0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b6ce8c7-5d19-4d96-8b6e-4c97a77baffb/pawexajov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a669d4f-bc91-404f-a801-ccd56bd9997b/how_do_u_work_out_the_interior_angle_of_a_regular_polygon.pdfIn PDF document text
    • http://sasukagisodubex.onlinewebshop.net/line_6_helix_lt_vs_helix_hx.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f393432-db14-4d56-a462-c1deb35cc890/zamiweba.pdfIn PDF document text
    • http://satawakerexe.atwebpages.com/vanojigepi.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d64b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD64B 5328 bytes
SHA-256: b6d8708d8295f5a28d410aab671e92b5988b8169619234887998c00685667ce1
font_01_sfnt_off0000e858.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE858 10184 bytes
SHA-256: bd2d840b1516699f6f0792461f34c778a9a2bd908aac4ae3297b7dde96d28a0c

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