Malicious PDF — malware analysis report

Static analysis result for SHA-256 07cd0e510de23e00…

MALICIOUS

PDF

81.6 KB Created: 2021-04-19 19:29:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 069d5c9a46fce24bc7d0cbcc8610b861 SHA-1: 60bf4293fa749f56585ae011875accc4edd861af SHA-256: 07cd0e510de23e00a54c6446b1eecf537fa352bc1ff20904ba2c0e4c270a6987
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs pointing to disposable domains and link farms, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of techniques used to redirect users to malicious sites, potentially for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

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://dugedepap.ru/strik?utm_term=hp+8000+motherboard+price+in+pakistan PDF link annotation
    • http://slimerecipe.org/beats_by_dr_dre_solo_1_reviewleurw.pdfIn PDF document text
    • https://cdn.sqhk.co/xixujipum/jgjjhhE/mikixugelofolomemamutavu.pdfIn PDF document text
    • https://cdn.sqhk.co/sovanoniwuva/fgdtha3/pathogenic_bacteria_contamination.pdfIn PDF document text
    • http://vowitufafuzebil.scienceontheweb.net/92679339774.pdfIn PDF document text
    • http://lumacy.site/eye_pencil_sketch_step_by_step30fo8.pdfIn PDF document text
    • https://cdn.sqhk.co/getabemuto/iFIUhds/moziwufunamavunoma.pdfIn PDF document text
    • https://cdn.sqhk.co/marixefe/gjhjiQD/pixijukalu.pdfIn PDF document text
    • https://cdn.sqhk.co/sigagegijej/jmNijja/merge_cats_earn_crypto.pdfIn PDF document text
    • https://cdn.sqhk.co/lolatonuvesa/pcZkwgf/emergency_dental_near_me_medicaid.pdfIn PDF document text
    • http://bonusiotsbera.online/chainsmokers_latest_song_2018ipzwq.pdfIn PDF document text
    • https://cdn.sqhk.co/sixepatexup/ijiichb/abcmouse_mastering_the_alphabet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446507/normal_600ad6048f7d1.pdfIn PDF document text
    • http://polfact.site/ian_clayton_melchizedek_2013032yl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404313/normal_6054ce72ad27c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383807/normal_600b6469c7816.pdfIn PDF document text
    • http://ketaton.mywebcommunity.org/35457764089.pdfIn PDF document text
    • https://cdn.sqhk.co/bidekidarub/h3hbHgh/dc_comics_swamp_thing_action_figure.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449184/normal_602cadd698729.pdfIn PDF document text
    • https://cdn.sqhk.co/mizipudi/cJFjeTR/downhill_mountain_bike_race_france.pdfIn PDF document text
    • http://bonifacy.site/715357382771uuq8.pdfIn PDF document text
    • https://cdn.sqhk.co/joduragenep/jfqiAha/gutscheine_amazon_code.pdfIn PDF document text
    • https://cdn.sqhk.co/kuwusemob/CeW8Yie/rimidozilitimonofitiga.pdfIn PDF document text
    • http://tanolugulutewu.medianewsonline.com/carbohydrate_metabolism_file.pdfIn PDF document text
    • https://cdn.sqhk.co/jokufemij/onxLgdO/monster_hunter_clicker_rpg_idle_game.pdfIn PDF document text
    • https://cdn.sqhk.co/toxinize/3HCggid/country_music_videos_2020_official_videos.pdfIn PDF document text
    • https://cdn.sqhk.co/savujegu/u0lhigi/84401055851.pdfIn PDF document text
    • http://tevutubiwij.getenjoyment.net/cards_against_humanity_cards.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
    • 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_off0000f324.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF324 5572 bytes
SHA-256: 8157759122c19fc186322bf648304918e0d56f0f3b355dee7983109dee05a563
font_01_sfnt_off000105d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105D3 10592 bytes
SHA-256: 3b7e45d8bebdaf0afb5018f249ab1d13672fd7605e031ab6f5b0627b5307db43
font_02_sfnt_off00012a0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A0A 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3