Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eeab86211980388…

MALICIOUS

PDF

80.4 KB Created: 2021-03-10 12:11:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0291e10462dd7c380bea16ff5cf9fa2 SHA-1: 26a4ff26cbf05eb32dd65a623e4c103fcf37c5cc SHA-256: 1eeab86211980388a15edff8e4abbc817d6c9994a952b42f7e73891ec5175f45
104 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. The document body contains text suggesting an invoice or payment lure, and an external URI was extracted pointing to a suspicious domain. While no scripts were directly extracted, the PDF structure and the presence of an external URI indicate an attempt to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

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
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://xezojetit.ru/wix?keyword=kindly+acknowledge+receipt+of+this+email+meaning
    • https://cdn-cms.f-static.net/uploads/4427284/normal_6039f26934194.pdf
    • http://dihtyar.online/cpc_exam_study_guidew1mdz.pdf
    • http://idealica-italiauficiale.website/malowowolokivulilnqmf3.pdf
    • https://static.s123-cdn-static.com/uploads/4383699/normal_5ffe069fd86ae.pdf
    • http://bet-info.ru/ingles_basico_para_adultos_gratisez35i.pdf
    • http://getcreditreport.info/sinuzajuo8px3.pdf
    • http://bonifacy.site/7354718130128s6y.pdf
    • https://cdn-cms.f-static.net/uploads/4369908/normal_6036a3e3e3945.pdf
    • http://pubgmobiie.com/dewezemr92b.pdf
    • http://lady-bug.club/wogerejukirotezaroo8qop.pdf
    • https://static.s123-cdn-static.com/uploads/4483103/normal_5fcb20cb60def.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wukevirenesu/30285690809.pdf
    • https://s3.amazonaws.com/bulikowexunepov/atm_card_use_video.pdf
    • https://s3.amazonaws.com/vuforewebub/82680109472.pdf
    • https://s3.amazonaws.com/viwoxuz/tafasagawon.pdf
    • https://s3.amazonaws.com/fizaxo/batman_hd_wallpapers_for_laptop.pdf
    • https://s3.amazonaws.com/biwubeleba/vililetupexixeniguve.pdf
    • https://s3.amazonaws.com/woberiz/what_is_a_synonym_for_clear-headed.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_off0000fe6e.bin
a3fb82c86c61eff32e206428e5dc79b2f8ca52bfba19e481df55bbfae894e72b
pdf-font-stream PDF embedded font (sfnt) at offset 0xFE6E 5796 bytes
font_01_sfnt_off00011225.bin
4517bde07c30fa79c7200568d3b244cb00779170fba23039fa0a98bafa851146
pdf-font-stream PDF embedded font (sfnt) at offset 0x11225 10052 bytes