Malicious PDF — malware analysis report

Static analysis result for SHA-256 96d02f30df3e757f…

MALICIOUS

PDF

83.8 KB Created: 2021-04-06 12:08:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: de64f7f2ae042e6198d4f69895235cb9 SHA-1: e5a9207fd8461976665db2d3f52ebb780337b292 SHA-256: 96d02f30df3e757f9e596d6ad94f02949be3ac2dc3845c9a0ad075cce7c9e5e4
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable hosting and employing UTM parameters, indicative of a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious sites, likely for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://jumiwimov.ru/strik?utm_term=graco+pack+n+play+care+suite+playard+walmart PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4374368/normal_600937c9357ce.pdfIn PDF document text
    • http://mp4.design/how_to_fix_big_blue_party_speakertuyar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470545/normal_60313efbcc97f.pdfIn PDF document text
    • https://joriwonakogilul.weebly.com/uploads/1/3/5/3/135305945/nawapenajajoras_bipomodarib_vijiw_dufijemax.pdfIn PDF document text
    • https://lerugusenexeke.weebly.com/uploads/1/3/5/3/135317851/27fccadc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418567/normal_606229c13bfe4.pdfIn PDF document text
    • http://nawoxir.22web.org/download_manga_tales_of_demons_and_gods_sub_indo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463298/normal_5ff942a126eb1.pdfIn PDF document text
    • http://chelamela.org/biwuxotosunenapofekofozuw88et.pdfIn PDF document text
    • http://uspehdnyaaxyz.xyz/cookie_sheet_organizer_rackgkf76.pdfIn PDF document text
    • https://dawewixorumerix.weebly.com/uploads/1/3/4/6/134633471/53a19637014202.pdfIn PDF document text
    • http://best-store.club/80360427217btibv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420592/normal_601207eb59ec3.pdfIn PDF document text
    • http://dolugonowavogo.iblogger.org/odia_album_song_video_hd.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://kopivenegi.epizy.com/ninem.pdfIn PDF document text
    • http://sotuwekelog.epizy.com/kosodukamamulolor.pdfIn PDF document text
    • http://dobevux.epizy.com/human_anatomy_terms.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f56a5028-ff4b-4de7-97ee-88bda65b739d/casio_g-shock_battery_replacement_model_5081.pdfIn PDF document text
    • http://fupotuz.rf.gd/wipuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00cb0420-cf51-4e53-9d77-85b1f2b8c37c/how_to_use_cuisinart_grind_central.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eda24406-516b-471d-a4e8-94d917961dde/keurig_mini_plus_black_friday.pdfIn PDF document text
    • http://vimabamavarona.epizy.com/balance_sheet_reconciliation_template_xls.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF3B 5392 bytes
SHA-256: 99f020d88e05a8650c5f27bbdf984b75e3db169593ae539da85bc4bb18a355c9
font_01_sfnt_off0001018f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1018F 2468 bytes
SHA-256: 7ddc4e307ecc0208bb7576d9e4c1fa8d5068fa2851890f59e8d1292bb341344c
font_02_sfnt_off00010cc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CC0 11276 bytes
SHA-256: c905e5782c48ac0e333f275b3543ccf52dcbb2285637265ed3350c3c1312e3ba
font_03_sfnt_off00013341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13341 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f