Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e90d9bef2518059…

MALICIOUS

PDF

90.6 KB Created: 2021-03-10 00:49:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 8bf14fc0d9fe29317bcceb88bf08bed0 SHA-1: 9401ab7f19b7bca1219ecb8e506c8dff0b248c42 SHA-256: 6e90d9bef2518059d0f5dfb7d7e2eaebc087e4c1add7659f9eb1a19d02b46ae9
166 Risk Score

Malware Insights

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

The sample was detected as a malicious PDF by ClamAV and ML classifiers, indicating a high likelihood of malicious intent. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document is designed to trick users into downloading a password-protected archive, a common tactic to bypass security filters. The embedded URLs point to domains that host PDF files, likely serving as lures or download locations for further stages of the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://jumiwimov.ru/award?keyword=the+5th+wave+book+1+pdf PDF link annotation
    • https://cdn.sqhk.co/vasozaponem/A6hcjhM/xafumokijufudenupofusi.pdfIn PDF document text
    • http://look-hotel.com/201935524y7gdj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421339/normal_602757fd47c8b.pdfIn PDF document text
    • https://cdn.sqhk.co/lilaxikixo/ZhdhfzT/rarest_blood_type_among_humans.pdfIn PDF document text
    • http://reweder.site/what_does_bible_says_about_lonelinessnyo2x.pdfIn PDF document text
    • http://austritkfa.com/sims_3_vs_sims_4_graphics_requirementsy2gev.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409826/normal_6014aae5ddc02.pdfIn PDF document text
    • https://cdn.sqhk.co/doparibi/iar6Fig/bronze_age_definition_and_example.pdfIn PDF document text
    • https://cdn.sqhk.co/tumowara/GiiiCWe/battle_souls_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457279/normal_600dc2aaa92e4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sozakerikiperoj.epizy.com/es_file_explorer_file_manager_cracked_apk.pdfIn PDF document text
    • http://pimubejat.epizy.com/terividawebemizeni.pdfIn PDF document text
    • http://guduxakif.rf.gd/how_to_reset_wifi_password_gopro_hero_3.pdfIn PDF document text
    • https://9df6fdd8-df71-43fb-87ad-b121b2de7416.filesusr.com/ugd/e0d0cf_3bc7c5bf0be847a6badfd075fa99a33f.pdf?index=trueIn PDF document text
    • https://e148473a-3d1a-46f8-b788-fbc1f5af68d4.filesusr.com/ugd/e1e70b_f6bbd6e6e9404e2b847334008bd92c56.pdf?index=trueIn PDF document text
    • https://a161ff94-1a6f-4367-b6f8-8e513a5e676d.filesusr.com/ugd/4c7633_ab8a613cf98c4d0693f91ce1a827476f.pdf?index=trueIn PDF document text
    • http://suxorodefis.epizy.com/bestwap._in_bhojpuri_video_song_2018.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_off0001278e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1278E 5304 bytes
SHA-256: 75b848fac7b0f6884081cdcabb09e6efa6372d5b6b630a399c3134c9f7b1e1af
font_01_sfnt_off000139c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139C2 10512 bytes
SHA-256: 948cb6613557b8e07d625e14b9dd05cd6bb7805c8a625bdabffd6c1d48112fa5

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