Malicious PDF — malware analysis report

Static analysis result for SHA-256 e411397244cb715b…

MALICIOUS

PDF

81.8 KB Created: 2021-03-13 18:24:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: fd1821a841c31db1cf267de4baccbb0e SHA-1: 9b5d8e68739b45b0d3f168bafdd690707ac453fe SHA-256: e411397244cb715bfa3172e1b0f89513e05e282b83a90d53e9b56e5fabef251c
126 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating it likely contains malicious content. The heuristics suggest it functions as a link farm on disposable hosting, with an embedded URI pointing to a domain that appears to be part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains keywords related to 'swot analysis google pdf', likely a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/award?keyword=swot+analysis+google+pdf PDF link annotation
    • http://xiwakaravivomik.scienceontheweb.net/bejekoropowekaji.pdfIn PDF document text
    • https://cdn.sqhk.co/fiduzosi/ldljhje/tinogugodexopulizerupu.pdfIn PDF document text
    • https://cdn.sqhk.co/fovomesit/xhagdje/vip_access_app_download.pdfIn PDF document text
    • http://tikopariwoxa.mygamesonline.org/law_of_equity_and_trust_in_bangladesh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379498/normal_5fc90b8ff2c86.pdfIn PDF document text
    • http://jiteruruw.sportsontheweb.net/87912977497.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500878/normal_60447605c5bbd.pdfIn PDF document text
    • http://lakujalinifibo.mypressonline.com/can_a_caldera_erupt_again.pdfIn PDF document text
    • http://xorabawik.medianewsonline.com/the_gregorian_calendar_replaced_the_julian_calendar_in_great_britain_in_which_year.pdfIn PDF document text
    • http://bagesopabiwub.scienceontheweb.net/vababidinisivup.pdfIn PDF document text
    • http://digovin.getenjoyment.net/mibonunax.pdfIn PDF document text
    • http://kokolonesafu.getenjoyment.net/nodojojesozubugekag.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454286/normal_5ff6b9da2a948.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450732/normal_5ff8559f22087.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/90705904838.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b045fd9e-54ce-49d4-a994-d463b80930bd/72216383144.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cf0570e-24fd-479b-af42-c540564c6afb/folet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50ccdbfb-a6a3-47a9-b9b2-c5cbe167a398/vulinikilakumimuxotali.pdfIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/vampire_diaries_season_8_episode_11_streaming.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e40f61d-e015-4992-bd2c-f4acd6b3201c/62317251778.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d77bb9cc-82c5-4cc7-bbcf-2e20f3fc091b/69621341184.pdfIn PDF document text
    • https://s3.amazonaws.com/jivala/fantasy_football_rankings_espn_cheat_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/tepatami.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/how_to_solve_a_twisted_rubiks_cube.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f61a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF61A 5196 bytes
SHA-256: fb3666d859c1a55fad57232de464ec0c9910d2fda2d294be501a8051c64dbc5b
font_01_sfnt_off000107ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107EC 10256 bytes
SHA-256: 53b6301e0e913b0551b718f01ae5e7cb7deac47960bf7be20ce15363c197ee72
font_02_sfnt_off00012b0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B0C 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e