Malicious PDF — malware analysis report

Static analysis result for SHA-256 74286d26d605dcd0…

MALICIOUS

PDF

72.1 KB Created: 2021-02-27 01:11:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 11af66853dee85058a1c0579c444c625 SHA-1: 15163509f53338613edee5a1248d2be86806b445 SHA-256: 74286d26d605dcd0a63854b954382d56408363d3333ba014ca12062a4bee190a
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://soxebez.ru/award?keyword=what+are+the+types+of+covid+tests+available PDF link annotation
    • https://cdn.sqhk.co/kixikeli/hj8khim/xevigiwajikawile.pdfIn PDF document text
    • https://cdn.sqhk.co/kapimetavis/WjhQtll/nefeweru.pdfIn PDF document text
    • https://cdn.sqhk.co/zikufivol/iejhidG/singing_bowl_healing_frequencies.pdfIn PDF document text
    • http://kadazid.22web.org/the_veldt_movie_watching_guide.pdfIn PDF document text
    • https://mefosenide.weebly.com/uploads/1/3/4/7/134715399/f1bf72c0d2eae5.pdfIn PDF document text
    • https://jonumupemusegiw.weebly.com/uploads/1/3/0/8/130874210/ce675.pdfIn PDF document text
    • https://cdn.sqhk.co/sigagegijej/lOhadid/play_store_app_install_download_free_fire.pdfIn PDF document text
    • https://zokelafeg.weebly.com/uploads/1/3/4/8/134889419/pinunok_fujilex_kibafabimer_belebupinipaz.pdfIn PDF document text
    • https://wetolobumusu.weebly.com/uploads/1/3/4/5/134579125/1852700.pdfIn PDF document text
    • https://cdn.sqhk.co/ferorigife/ZiXgjgh/gojoj.pdfIn PDF document text
    • http://gojavodevagajuw.mygamesonline.org/daloz.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://xilekur.epizy.com/42229878193.pdfIn PDF document text
    • http://firuwasuwubo.epizy.com/mulokapofagew.pdfIn PDF document text
    • http://jozadedosirokeb.rf.gd/arduino_library_for_proteus.pdfIn PDF document text
    • http://lozufifeme.epizy.com/opera_browser_app_for_pc.pdfIn PDF document text
    • https://medlineplus.gov/covid19testing.htmlIn 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_off0000cfd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFD6 5240 bytes
SHA-256: a2e725a244ce62def2a9ea888403a44bde8c3b232f6f69d316acf7bdc8b769ee
font_01_sfnt_off0000e1d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1D0 10312 bytes
SHA-256: 23a5e407231007afcb1758f2839a31ee797a4e41788291feaa6b072fdcaa0d84
font_02_sfnt_off0001051a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1051A 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c