Malicious PDF — malware analysis report

Static analysis result for SHA-256 e04ea162d186f5f9…

MALICIOUS

PDF

160.8 KB Created: 2021-03-24 07:35:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5eb0162b592d1c2950d6e4a733b6eedb SHA-1: bb92acf1247f7670a148efa5b23b7731543e950d SHA-256: e04ea162d186f5f9d3e502b92f0f2e36faa9ab8431ded92d6b0fb1c19c641991
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with a primary focus on 'https://lozipotod.ru/award?keyword=alendronate+sodium+davis+pdf'. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the PDF is part of a link farm on disposable hosting, suggesting a phishing or malicious redirection attempt. ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious classification. No scripts were extracted from this sample, but the overall structure and URL distribution point to a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9940

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://lozipotod.ru/award?keyword=alendronate+sodium+davis+pdf
    • https://static.s123-cdn-static.com/uploads/4495055/normal_60023e948179e.pdf
    • https://cdn-cms.f-static.net/uploads/4468820/normal_60400c2236827.pdf
    • https://zufefofavenubu.weebly.com/uploads/1/3/0/7/130775539/xidipumisuneji.pdf
    • https://nutomejeti.weebly.com/uploads/1/3/4/7/134702699/xesomajepasu.pdf
    • https://lefagetali.weebly.com/uploads/1/3/2/3/132302894/wasikifagatomodi.pdf
    • https://cdn-cms.f-static.net/uploads/4443372/normal_6046758c0f908.pdf
    • https://dadotetixaj.weebly.com/uploads/1/3/4/4/134404583/d8eda8314e6a6df.pdf
    • https://cdn.sqhk.co/makulowujip/hdy3hcf/49869020105.pdf
    • https://beluxavin.weebly.com/uploads/1/3/4/5/134507718/sakomitufedefir_velam_tiriga.pdf
    • https://movulejovem.weebly.com/uploads/1/3/4/4/134470355/vevutivuxe.pdf
    • https://cdn.sqhk.co/xuxosoler/aiaggEo/40957360312.pdf
    • https://cdn.sqhk.co/ruxagoxoman/jaHiiic/dungeon_quest_roblox_cosmetics.pdf
    • https://static.s123-cdn-static.com/uploads/4377113/normal_5fc6dea9908d5.pdf
    • https://static.s123-cdn-static.com/uploads/4412378/normal_5ffba447bb480.pdf
    • https://xitapazutirubej.weebly.com/uploads/1/3/4/8/134882608/pomenilazolilud_kodakawesi_meranofuvabake_nomixilesiga.pdf
    • https://dozogifelezu.weebly.com/uploads/1/3/4/3/134313369/1585697.pdf
    • https://cdn.sqhk.co/jawutuwek/WUtaXNz/starz_series_2018.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://vabizawez.epizy.com/wuduwijewusuw.pdf
    • https://uploads.strikinglycdn.com/files/5d602566-05ef-45e8-962a-a2fc9bafa433/how_to_encourage_an_elderly_person_to_exercise.pdf
    • https://uploads.strikinglycdn.com/files/48c79597-76db-48e2-8f38-51f75108a5af/vapugawoweregugim.pdf
    • http://rolodumom.epizy.com/worksheet_for_locomotor_and_nonlocomotor_movements.pdf
    • http://lesolasate.epizy.com/91276967586.pdf
    • http://zumukitukojus.epizy.com/qualified_and_unqualified_audit_report_meaning.pdf
    • http://roradom.epizy.com/nier_automata_piano_sheet_music.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00021111.bin
42e2c9b84d52b088f13281dfa8e30e2b67e9cc3d551d7046c5f7351bc4fc3c9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x21111 5120 bytes
font_01_sfnt_off00022261.bin
db9c09e6991d24ce0998703be0c96a445e0bcf3ddc4ed1e610c8c8ef2512ad45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x22261 13928 bytes
font_02_sfnt_off00024fb8.bin
503f5200e83b189a546b6c6e1d808633a9135186956fe76ff9bd78de3d91e3c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FB8 16060 bytes
font_03_sfnt_off00026450.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x26450 4324 bytes

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