Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e17c4c650841499…

MALICIOUS

PDF

82.9 KB Created: 2021-04-11 16:40:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: c42608f2c6ba09fa22d8adf2998ee131 SHA-1: 0e44af377d64cfed5b1fceb7b11586f6ad307376 SHA-256: 6e17c4c650841499397cb64d0f27721c68a3114e831c9755e2778029f521718e
126 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV. It contains numerous external links, with one prominent URL pointing to 'maypoin.ru', suggesting a phishing or malware distribution attempt. The document body is heavily obfuscated and appears to be a lure, possibly related to a scam or social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/strik?utm_term=at+what+age+can+a+child+draw+a+face PDF link annotation
    • https://cdn.sqhk.co/tomubozes/5SjaqAX/20874325108.pdfIn PDF document text
    • http://vugezaselefobop.iblogger.org/gisuroz.pdfIn PDF document text
    • https://cdn.sqhk.co/talurelope/33IPggg/the_wolf_simulator_gameplay.pdfIn PDF document text
    • http://noxafenetut.iblogger.org/vutovodikagiro.pdfIn PDF document text
    • https://cdn.sqhk.co/pajokiman/iaZgdhc/icon_clash_nike_sweats.pdfIn PDF document text
    • http://bebetadiruj.mywebcommunity.org/rosemount_1056_wiring_diagram.pdfIn PDF document text
    • http://mojofaza.mypressonline.com/92966480443.pdfIn PDF document text
    • http://lexisunat.iblogger.org/the_school_for_good_and_evil_book_5_vk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://528a8416-53f4-4693-bcf0-540471887af1.filesusr.com/ugd/c3aa89_cb8df89911c8408597bf40fad8e62a55.pdf?index=trueIn PDF document text
    • http://xinifaduzinuvu.onlinewebshop.net/jnv_class_6_admission_form_2020_download.pdfIn PDF document text
    • http://pibixokemur.rf.gd/wogibawoxedoriranituzo.pdfIn PDF document text
    • https://c4cd0dbc-23d7-4f11-b65f-2561cec8abe5.filesusr.com/ugd/516793_9d64ce2ed41a490eb34f6df1f343a1d7.pdf?index=trueIn PDF document text
    • http://sirowozikuko.epizy.com/romamijipizubiwiz.pdfIn PDF document text
    • http://vawerudarasikow.myartsonline.com/cryogenic_engine_design.pdfIn PDF document text
    • https://313cea95-bd78-4864-9d9d-3b26c3bbe0bd.filesusr.com/ugd/2142af_0959bdbc34af40889ad81c41a166f387.pdf?index=trueIn PDF document text
    • http://rerorisa.epizy.com/sword_art_online_manga_order.pdfIn PDF document text
    • http://dobejul.epizy.com/chipmunks_happy_birthday_songs.pdfIn PDF document text
    • http://tavarifa.epizy.com/vocabulary_in_use_upper_intermediate_download.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_off000106bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106BD 5184 bytes
SHA-256: 06072f631188170fc60f40b60ab402647373760f9dc80033222afdfe665206ed
font_01_sfnt_off00011871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11871 10740 bytes
SHA-256: f0c01dd3923948d90ac394dd59a0139c4824a67e2009e34c7e7b2ed65db7e115

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