Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e22376731d7aaf1…

MALICIOUS

PDF

72.6 KB Created: 2021-04-07 17:52:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 9113ddbb584eb28fe88b81a7d30445e7 SHA-1: dcfb4b6e94ebd386960b519d5d43ed393242135f SHA-256: 6e22376731d7aaf1feb7cd89f80d33b096ef632ab4c2302f88f15dd590091a5b
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple embedded URLs, with one specifically identified as a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of external URIs suggests the PDF is intended to redirect the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://mezovuduw.ru/strik?utm_term=what+does+yogurt+do+in+a+smoothie PDF link annotation
    • http://usesol.xyz/vutusalubozoj2cop.pdfIn PDF document text
    • https://cdn.sqhk.co/kakapoxavu/gfojcje/masha_e_o_urso_o_filme_online.pdfIn PDF document text
    • https://cdn.sqhk.co/nopawuwam/xHnjihb/weather_app_icon_white.pdfIn PDF document text
    • http://gachihyper.xyz/marqus_de_sade_biografiaw0ru2.pdfIn PDF document text
    • https://cdn.sqhk.co/pubamegumox/ggjjawr/29628778020.pdfIn PDF document text
    • https://cdn.sqhk.co/sexuzoropa/iao2jdr/kixikafo.pdfIn PDF document text
    • https://cdn.sqhk.co/mixaluwekitu/jjebhdj/jimapa.pdfIn PDF document text
    • https://cdn.sqhk.co/zabeluzitema/p9Jjh44/charli_d_amelio_wallpaper_outfits_tik_tok.pdfIn PDF document text
    • https://cdn.sqhk.co/xusopusavo/fjbhhje/assistant_shortcuts_app.pdfIn PDF document text
    • https://cdn.sqhk.co/rojozedofaf/jRhhjht/equilibrium_2002_movie.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxesotovo/jhhJGjg/36553251298.pdfIn PDF document text
    • https://cdn.sqhk.co/guwuweri/dEQiilr/air_tycoon_3_wiki.pdfIn PDF document text
    • https://cdn.sqhk.co/sifajoxojif/xjjjgid/real_driving_sim_unlimited_money_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/nuxoporerom/7gchcgc/blacksmith_merge_idle_rpg_hack.pdfIn PDF document text
    • https://cdn.sqhk.co/savunowudob/ifgh8ie/mca_air_force_1_real_vs_fake.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/de69e852-c5af-4eab-a34d-1f7fdc8656d2/58660957489.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/free_audio_books_for_android_tablet.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/90503708854.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/maplestory_hero_guide_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bbd119f-b1d4-4252-819b-1504938fb26c/15481244758.pdfIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/arne_jacobsen_table_clock_manual.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_off0000def2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEF2 5324 bytes
SHA-256: a4da6231834a75ede126505a7e35975d54cfa9fbfa7347d6b830255f6a0c478c
font_01_sfnt_off0000f0f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0F6 10640 bytes
SHA-256: bda8ed97bce4aaeb08726485a5e0bec0e4c0a9e3e23da5ea59b88aaf7e4cfae7

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