Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc86b53989657e56…

MALICIOUS

PDF

78.4 KB Created: 2021-05-13 04:03:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 02e94fc5ef5d34e4aa0fd899927829ff SHA-1: d5e52e33e470ce1958fa02935701f8fb46633ab4 SHA-256: bc86b53989657e563fc29871e60a2aa0610799b5939fbdb6a128f9bd0987a70f
96 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one specifically identified as an external URI pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the presence of embedded URIs suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://lozipotod.ru/strik?utm_term=how+much+is+a+mini+dachshund+puppy PDF link annotation
    • http://blockhcain.host/rarimatibiji01jhc.pdfIn PDF document text
    • http://jezolixepoj.22web.org/69640506663.pdfIn PDF document text
    • http://spiritstudio.ru/94736134709grof5.pdfIn PDF document text
    • https://sutesesa.weebly.com/uploads/1/3/4/8/134871168/7145869.pdfIn PDF document text
    • https://magijomolalol.weebly.com/uploads/1/3/1/4/131437319/vagotesote.pdfIn PDF document text
    • http://verifybadgesbusiness.com/modulo_5_prepa_en_linea_sepw8ojn.pdfIn PDF document text
    • https://wewodagib.weebly.com/uploads/1/3/4/2/134266566/rubejixajukaxase.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/bMOshjz/alabama_road_trip_routes_planner.pdfIn PDF document text
    • https://cdn.sqhk.co/gumakulex/niiQxEz/88282121611.pdfIn PDF document text
    • https://bimonodinedijov.weebly.com/uploads/1/3/4/6/134697137/gusogax.pdfIn PDF document text
    • https://cdn.sqhk.co/linigurep/hi5hjdI/make_cartoons_with_poppy_toons.pdfIn PDF document text
    • https://cdn.sqhk.co/wejupexuput/gnjfijf/puluvujalozune.pdfIn PDF document text
    • https://rijifupipi.weebly.com/uploads/1/3/1/4/131453414/sepukapevufet.pdfIn PDF document text
    • http://1xbets-reg.site/where_is_the_filter_that_tells_you_what_disney_character_you_look_likemcz8q.pdfIn PDF document text
    • https://cdn.sqhk.co/guzunilepin/i6Bgehe/development_of_atomic_theory_worksheet_answer_key.pdfIn PDF document text
    • https://cdn.sqhk.co/delojiwuguj/Oagdwhb/lexeruwunajalepebutixu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/final_fantasy_xvi_trailer_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/how_to_draw_a_realistic_rose_for_beginners_step_by_step.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/continuation_sheet_3_lpa.pdfIn PDF document text
    • https://s3.amazonaws.com/puretulenuza/sample_act_math_test.pdfIn PDF document text
    • http://mewarur.rf.gd/android_auto_app_for_ios.pdfIn PDF document text
    • https://s3.amazonaws.com/vokeri/48479120603.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_off0000f550.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF550 5340 bytes
SHA-256: d7383ba33437b20fcd7e57919047dba70ab5654c9507e8c412fe7b33b37e032a
font_01_sfnt_off0001076e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1076E 10732 bytes
SHA-256: 61b8283a3b030573b59bdca6bbbccce02cb94f3f070a67a0dfa37dbce67ecc46

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