Malicious PDF — malware analysis report

Static analysis result for SHA-256 894b5ca03f9163d7…

MALICIOUS

PDF

70.4 KB Created: 2021-03-02 23:21:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c1768328ec54cbe1635f48afb07d02d1 SHA-1: 288082845d94a97c61786a96bc21287207c8d503 SHA-256: 894b5ca03f9163d731b4a6f9c39a42541796de65770077738d3f74f86e10e049
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/award?keyword=how+to+set+timex+indiglo+alarm+clock PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4372985/normal_5fcdcffe79e77.pdfIn PDF document text
    • https://bevikafu.weebly.com/uploads/1/3/4/7/134710030/tuxizasugeno_gepekevivuxut_rifafewebusif_mojizatoge.pdfIn PDF document text
    • https://pafebexazare.weebly.com/uploads/1/3/1/1/131163914/77142.pdfIn PDF document text
    • http://helpverifedbadges.com/39118698450zi4mp.pdfIn PDF document text
    • http://twitter-center.com/warhammer_fantasy_roleplay_3rd_edition_character_sheetahwcq.pdfIn PDF document text
    • https://sukaxivex.weebly.com/uploads/1/3/4/8/134895869/570369.pdfIn PDF document text
    • http://yblda.fun/institute_of_medicine_report_2001qxlk3.pdfIn PDF document text
    • https://fujuzelos.weebly.com/uploads/1/3/1/3/131380065/mitipijake_bakowuwowire_dibiritoxata.pdfIn PDF document text
    • https://cdn.sqhk.co/futevanu/ejfHlIe/bullet_force_download_apk_obb.pdfIn PDF document text
    • https://cdn.sqhk.co/nojedevatas/jhcjaii/timubowotewokawo.pdfIn PDF document text
    • https://cdn.sqhk.co/koxopumo/ebhiige/ritutag.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/dusubonifu/converting_between_metric_units_worksheet_ks2.pdfIn PDF document text
    • https://s3.amazonaws.com/viregujipowuru/gofebuxaledurivi.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/wegetedudalugutaw.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_off0000d6a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6A2 5444 bytes
SHA-256: 2ea85e8c608f2a24692b440967b5998598041fae778f81fc829c821887338a7f
font_01_sfnt_off0000e920.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE920 10488 bytes
SHA-256: 158bca5232118df2d6dc60860022d12adea4f8bb55c84c85f796cdfb32413712