Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea97705f54b5b50a…

MALICIOUS

PDF

75.2 KB Created: 2021-02-01 10:27:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 6af1d50837cc1d47be5fb691f20994af SHA-1: 6b2b0948566b5b9123e522bc4b8f54d67a2eb374 SHA-256: ea97705f54b5b50a77847cf72ced7ea54aabd116b74143ee63828847caa74b27
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, and numerous other URLs are present within the document, suggesting a phishing or malware distribution attempt. The document body text, though heavily obfuscated, contains keywords related to a retail store, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://bologen.ru/123?utm_term=home+depot+topsham+maine+telephone+number PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4379233/normal_5feff0910893a.pdfIn PDF document text
    • http://spain50off.info/30407347191ekob5.pdfIn PDF document text
    • https://cdn.sqhk.co/mozoposowi/fsidugc/pokemon_mod_minecraft_pe_android.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455645/normal_5fee4ed853fb4.pdfIn PDF document text
    • http://formverifiedbadge.com/mupexunegalubuvosavhu6sa.pdfIn PDF document text
    • https://cdn.sqhk.co/fazejitev/8WRif0Z/ditibikajigabo.pdfIn PDF document text
    • https://cdn.sqhk.co/bagadogod/ggV4a1a/fitbit_inspire_2_manual.pdfIn PDF document text
    • http://stepka2016.xyz/hobby_lobby_stores_like6vtg9.pdfIn PDF document text
    • https://cdn.sqhk.co/ralapogifur/jb5igje/sizejop.pdfIn PDF document text
    • http://robot3.site/gusufifefbb34e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e8a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A0 5300 bytes
SHA-256: c39e31edf24c73d08078ac330be84710eec3e7ac7b4b1341e06cf8460b8b5a23
font_01_sfnt_off0000fa6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA6A 10900 bytes
SHA-256: 6d86ed138d9b800a1c67b9cb07834baada3aac54e817dcb8313c4f709e1050d0

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