Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7f365bb4e4225d3…

MALICIOUS

PDF

79.8 KB Created: 2021-03-19 21:11:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 610c7b865de961537a19719e1ce8aa79 SHA-1: c45571a50919bba56850c3325fd3a9bff71a7502 SHA-256: c7f365bb4e4225d3ea2d183d9ee1b70a5004b37f9abbd1ec4cfcaebd81041026
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains numerous external URIs, many hosted on disposable domains, and is flagged by ML classifiers and ClamAV as malicious phishing content. The document body, though heavily obfuscated, appears to be a lure related to 'HACCP manual template free', directing users to malicious URLs like 'https://lozipotod.ru/123?utm_term=haccp+manual+template+free'. This suggests the primary goal is to trick users into visiting a compromised site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/123?utm_term=haccp+manual+template+free PDF link annotation
    • http://tugokutuli.scienceontheweb.net/delarafubogimutobok.pdfIn PDF document text
    • http://pixizosusonaxij.sportsontheweb.net/ap_grama_sachivalayam_syllabus_in_telugu_2020_download.pdfIn PDF document text
    • http://ptmonline.ru/tom_clancys_rainbow_six_siege_similar_gamesw9fga.pdfIn PDF document text
    • http://nunesop.scienceontheweb.net/xukerazejexexuzu.pdfIn PDF document text
    • https://gojesewemuvi.weebly.com/uploads/1/3/2/6/132681304/lulutur.pdfIn PDF document text
    • http://towufato.mywebcommunity.org/kazivinijabot.pdfIn PDF document text
    • http://testertumentum.space/progressive_insurance_pre_employment_assessment_test2ppwy.pdfIn PDF document text
    • https://gopaposoxawa.weebly.com/uploads/1/3/0/7/130740193/91bf67b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446931/normal_60464821ab748.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420930/normal_5fe1427a83e69.pdfIn PDF document text
    • http://smartroom.pro/domejepewixaregujn3nd2.pdfIn PDF document text
    • http://interior.estate/how_to_adjust_my_honeywell_thermostatn7tan.pdfIn PDF document text
    • http://modezewop.mygamesonline.org/air_force_question_paper_download.pdfIn PDF document text
    • http://zememor.sportsontheweb.net/barnett_vortex_lite_youth_compound_bow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381788/normal_6027bc93a6a7a.pdfIn PDF document text
    • http://vajesafosedepur.mywebcommunity.org/bamokawebonalokugix.pdfIn PDF document text
    • http://nobukuxokosiga.mypressonline.com/pepulukagixiguvitori.pdfIn PDF document text
    • http://digovin.getenjoyment.net/25579124732.pdfIn PDF document text
    • http://daniele.store/frp_bypass_apk_samsung_pangush3ry.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/levumoduf/nemewoler.pdfIn PDF document text
    • https://s3.amazonaws.com/fasudikek/20113372317.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_off0000fe68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE68 4944 bytes
SHA-256: de8b5d5d73c4ac98420299fa8271805a758d21b7f2fac786ae47df7abf709a65
font_01_sfnt_off00010f25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F25 10216 bytes
SHA-256: 05fc8300cfd8cd93040a1b741a401872157e3c94bff0dd3f4ed17ba8b6d4ae4e

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