Malicious PDF — malware analysis report

Static analysis result for SHA-256 26c832a30a6b194a…

MALICIOUS

PDF

76.2 KB Created: 2021-01-25 09:15:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 32b90b805e2d5d4788d0d311fabaee80 SHA-1: 19cd062016cdc0e04636653bfda817951c8bf65a SHA-256: 26c832a30a6b194a72c4921ae279e5421c4713158fdd5aff625baf5067ed707e
154 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/wb?keyword=love%20alarm%20app%20download%20for%20android PDF link annotation
    • http://damvglaz6.xyz/ben_10_up_to_speed_mod_apk_2020run2h.pdfIn PDF document text
    • https://noxiwufozale.weebly.com/uploads/1/3/0/8/130814513/8319188.pdfIn PDF document text
    • http://chebsvet.ru/ninuritemefafakefeonv3u.pdfIn PDF document text
    • http://my-favshopf.online/30393898061b7s8k.pdfIn PDF document text
    • http://smirno.life/98903503621ytzn8.pdfIn PDF document text
    • http://wtia.space/seesaw_family_app_qr_code_won_t_scan1472t.pdfIn PDF document text
    • https://fezagigix.weebly.com/uploads/1/3/0/8/130813643/4606700.pdfIn PDF document text
    • http://universityru.fun/wozeziog1u4.pdfIn PDF document text
    • https://sinekagu.weebly.com/uploads/1/3/4/8/134855021/21f691dcca.pdfIn PDF document text
    • http://mklhhhh.space/31258459882z84h1.pdfIn PDF document text
    • https://misapunuzure.weebly.com/uploads/1/3/1/6/131606411/jisusud-jizefug-miwosob-tubupumaxasup.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vovugezufined.epizy.com/kasonumat.pdfIn PDF document text
    • http://tefesapebeto.rf.gd/grade_12_chemistry_textbook_nelson.pdfIn PDF document text
    • http://bobasenifaj.epizy.com/divinity_2_rune_frame_guide.pdfIn PDF document text
    • http://riwugiboturom.epizy.com/12121661774.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_off0000ecd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECD5 5100 bytes
SHA-256: 28697eb8e13ad8f56ac36f3f6bbc51bc7f950adc934d460c02cc18d6b669ad0a
font_01_sfnt_off0000fe37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE37 11152 bytes
SHA-256: 8623c69c74a725feb6ce4958e59be2579db79599b061329d45c823dbad13f0bc