Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1922e338050f3bf…

MALICIOUS

PDF

80.1 KB Created: 2021-03-21 21:47:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e643b3e5ff8d4f4b2539255a956c2bd0 SHA-1: 91d961b76cf27f397e2d8c5230ffe265578f679d SHA-256: c1922e338050f3bf5bd67387174b41abb08f8ef4e0989b04bbd4e48e9b1551d5
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for Pdf.Phishing.Trojan and an ML classifier indicating maliciousness. The embedded URL `https://lozipotod.ru/aws?utm_term=which+metro+game+to+play+first` suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious intent, likely to trick users into downloading further payloads or revealing sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/aws?utm_term=which+metro+game+to+play+first
    • https://cdn.sqhk.co/bizujutenifo/ecapicX/42760980993.pdf
    • https://cdn-cms.f-static.net/uploads/4476925/normal_601cb730ed01c.pdf
    • https://cdn-cms.f-static.net/uploads/4452587/normal_5fda04d4c45f9.pdf
    • https://cdn.sqhk.co/tefazaturar/9gi6gdB/educational_leadership_and_management_book_in_urdu.pdf
    • https://cdn-cms.f-static.net/uploads/4416151/normal_5fd652497f6e6.pdf
    • https://cdn.sqhk.co/wamitavixitu/i2Hhhjd/vofirokujiloso.pdf
    • http://geekcods.com/dowatifotakarusidowakabasyx1ha.pdf
    • http://fosireditoj.mygamesonline.org/42038222803.pdf
    • https://cdn-cms.f-static.net/uploads/4493589/normal_604330d58f2f8.pdf
    • https://static.s123-cdn-static.com/uploads/4460682/normal_5fcb555549d45.pdf
    • https://cdn-cms.f-static.net/uploads/4373508/normal_600ece23441d4.pdf
    • https://cdn.sqhk.co/nebafori/j0he4jc/piano_master_2020_apk_free_download.pdf
    • https://cdn-cms.f-static.net/uploads/4418570/normal_600e8e71686a5.pdf
    • https://static.s123-cdn-static.com/uploads/4476941/normal_5febf6ea6cb2c.pdf
    • https://static.s123-cdn-static.com/uploads/4413462/normal_5fcbf5fa71f1f.pdf
    • http://nadefememidep.medianewsonline.com/biwikidipafiwugifirege.pdf
    • http://kujazudoxiro.22web.org/ergomed_plc_annual_report.pdf
    • http://frut-tree.site/fuvazerumitoge3t9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://desujiruvomeb.myartsonline.com/negoduwewa.pdf
    • http://gipizaz.rf.gd/sieve_analysis_lab_report_procedure.pdf
    • http://kusababi.onlinewebshop.net/rwfdisp_viking_refrigerator_water_filter_cartridge.pdf
    • http://naxepatixotilu.rf.gd/regosisoxikudugitol.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f83c.bin
8ad843aa49f37dbe0156059829339b10dd52d3f772871e577eff43a0d12c56e5
pdf-font-stream PDF embedded font (sfnt) at offset 0xF83C 5544 bytes
font_01_sfnt_off00010b09.bin
675f3869b650c7b8b8ecdd033cf4f2bc852e1b34810729ddbb03aafe145cd530
pdf-font-stream PDF embedded font (sfnt) at offset 0x10B09 11268 bytes