Malicious PDF — malware analysis report

Static analysis result for SHA-256 0454099fb3b06020…

MALICIOUS

PDF

76.6 KB Created: 2021-03-24 11:32:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67416b6937a64c321de3835a65c5603c SHA-1: a8eaf803a386da357a90bab2aa04b298541936b0 SHA-256: 0454099fb3b0602036d82d29ac8c307a2764dc9476d316591c4b4106481e59ad
126 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs, with one specifically pointing to a URL that appears to be a lure for downloading a CV template. The presence of multiple disposable hosting domains and link farm characteristics further suggests a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jumiwimov.ru/123?utm_term=template+of+cv+for+students
    • https://loxujuzif.weebly.com/uploads/1/3/4/3/134368844/8087183.pdf
    • https://navaraze.weebly.com/uploads/1/3/4/6/134682655/vapupepinatamib_pesejuforudux_lomelekaruf.pdf
    • http://buzoxipipepokut.22web.org/brief_summary_of_hamlet.pdf
    • http://zirisumiwuxi.iblogger.org/wabefifotu.pdf
    • http://movikewenatorug.iblogger.org/xosanetasuzujegusazomu.pdf
    • https://warevinigipa.weebly.com/uploads/1/3/4/8/134898994/442663d3683b2e3.pdf
    • https://sudororurupe.weebly.com/uploads/1/3/4/6/134602833/pakapobewenu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://luregaw.onlinewebshop.net/cafe_du_monde_menu.pdf
    • http://metuvubom.rf.gd/hp_probook_6560b_ram_specification.pdf
    • https://s3.amazonaws.com/mipeboro/she_stoops_to_conquer_play_summary.pdf
    • http://dikuwunoxoxa.epizy.com/android_powered_by_google_logo.pdf
    • https://s3.amazonaws.com/zerejibixupav/3d_video_free_mp4.pdf
    • http://kifesafijupesob.onlinewebshop.net/critical_literary_theory.pdf
    • http://wekivegu.rf.gd/exercises_for_carpal_tunnel_syndrome_relief.pdf
    • http://ravuxisopol.rf.gd/is_homework_good_or_bad_for_students.pdf
    • https://08b4a39d-fa16-4eaa-91be-ae90003cacb9.filesusr.com/ugd/237bf7_78718c6f17704f2ca729c29390e20705.pdf?index=true
    • http://relakog.epizy.com/juwulunan.pdf
    • https://6d5fec37-5936-4ae8-8938-03a86e982f09.filesusr.com/ugd/d4da64_a4a98e8fa8ff412b9fc4ad7ef89a2352.pdf?index=true
    • http://tivogowajap.epizy.com/nafibireropetukaw.pdf
    • https://52431b39-7396-4b0c-bcaf-ab72d449a1bf.filesusr.com/ugd/f8cef3_a91dccbdca7c43d1bd3ae4cacb30fd40.pdf?index=true
    • 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_off0000ef5d.bin
0b1585ade0fa0d322fd054e3136131287a7f850f706b9fa999a941107d788299		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF5D 5312 bytes
font_01_sfnt_off0001015e.bin
5ee5b13bd156211534d7d38cca9b6c2118d8a6e5e3c3b5ccf5ac8f5ae2618427		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1015E 10572 bytes

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