Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf05e8d33dd9ed53…

MALICIOUS

PDF

85.2 KB Created: 2021-05-04 02:04:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 46de41ce7c3ba12b403f16e84b664d14 SHA-1: 31547c0ea123f2928cb055ebf1985b02435ed85f SHA-256: bf05e8d33dd9ed53134ebfbe70e4721c7ad45bd33748b55cb53ad9fdf5d0c105
66 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

Heuristics 4

  • 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://crophysi.ru/strik?utm_term=how+can+i+get+tested+for+bpd PDF link annotation
    • http://boraguw.medianewsonline.com/bose_home_speaker_500_manual.pdfIn PDF document text
    • https://durosokikiw.weebly.com/uploads/1/3/1/3/131379956/palapoto.pdfIn PDF document text
    • https://felinabaf.weebly.com/uploads/1/3/4/3/134380667/893690.pdfIn PDF document text
    • https://cdn.sqhk.co/pimidima/VWwQgib/blood_and_glory_legend_money_hack.pdfIn PDF document text
    • http://golifidisonopat.iblogger.org/define_carbonated_form.pdfIn PDF document text
    • http://cmb-accueil.com/harbor_freight_10_drill_press_review5im5q.pdfIn PDF document text
    • http://vikiwamatibude.22web.org/texetigusefinavivuzanuw.pdfIn PDF document text
    • https://cdn.sqhk.co/tamenotu/YjeihmN/audi_a4_0-_60_manual.pdfIn PDF document text
    • https://dugaxopi.weebly.com/uploads/1/3/5/3/135305828/tovipu.pdfIn PDF document text
    • http://brumbum2.xyz/85305789196e72yu.pdfIn PDF document text
    • http://wujanebinemeru.iblogger.org/wukelafefixawipetepimafon.pdfIn PDF document text
    • https://telozigigozato.weebly.com/uploads/1/3/4/3/134310186/1211808befb.pdfIn PDF document text
    • http://salestore.pro/6365281901263tts.pdfIn PDF document text
    • http://waduresiwiboba.iblogger.org/75489914434.pdfIn PDF document text
    • https://cdn.sqhk.co/kuwusemob/Cnjdbf2/international_marketing_notes.pdfIn PDF document text
    • http://esportzmlevent.com/2012_nissan_sentra_check_engine_light4x3wc.pdfIn PDF document text
    • http://wellwork.site/goat_simulator_multiplayer_ps4sdw09.pdfIn PDF document text
    • https://cdn.sqhk.co/samanugutu/heha5hi/xalofudozujise.pdfIn PDF document text
    • http://luxasireku.sportsontheweb.net/2d_animation_tutorial_for_beginners.pdfIn PDF document text
    • http://nupifijaw.getenjoyment.net/aprender_espaol_para_nios.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://sofizeximixa.epizy.com/joraz.pdfIn PDF document text
    • http://fizojigijuzad.epizy.com/vuraxujokiwewe.pdfIn PDF document text
    • http://jasunusemoki.onlinewebshop.net/bach_chaconne_piano.pdfIn PDF document text
    • http://tuxefefili.epizy.com/80450687265.pdfIn PDF document text
    • http://sekudevabadim.rf.gd/pufedasikowuvovojomupisug.pdfIn PDF document text
    • http://vumavoralamo.rf.gd/tajuwesidewujinonelumura.pdfIn PDF document text
    • http://lupibewexuzu.rf.gd/apbn_indonesia_tahun_2020.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000101fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101FA 5272 bytes
SHA-256: 450b2f2fbb7a5e0135017e339960efc92d845133f0b0ed915922b622919f86ca
font_01_sfnt_off000113f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113F8 11024 bytes
SHA-256: d82fc489aa6c64a31e2d77c416978fadcdf385458236001c5d839dbfae08fdb3
font_02_sfnt_off000138cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x138CB 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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