Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd4eb30d21ceadf3…

MALICIOUS

PDF

76.1 KB Created: 2021-03-23 21:42:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 014268ee887b14a0a52527112de6cf17 SHA-1: 53a1ad92f3f0b0b31013518f10aad26e93ceda98 SHA-256: dd4eb30d21ceadf32abb0b975420afe0118e1557729a2bb075245109bfd9de78
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains an embedded URI pointing to 'lozipotod.ru', which is likely a phishing or malware distribution site. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest an attempt to trick the user into visiting a malicious site.

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://lozipotod.ru/wix?keyword=equate+manual+upper+arm+blood+pressure+monitor
    • https://cdn-cms.f-static.net/uploads/4377656/normal_604d680343ded.pdf
    • http://foxaxasako.22web.org/70518777796.pdf
    • http://desajegurake.scienceontheweb.net/apprendre_python_2020.pdf
    • https://juxewuvolexi.weebly.com/uploads/1/3/4/1/134109000/nevixolag_bedukufes.pdf
    • http://bokaxakoz.sportsontheweb.net/kezijo.pdf
    • https://junowebabozem.weebly.com/uploads/1/3/5/9/135965754/donokitaledonorupopa.pdf
    • https://cdn-cms.f-static.net/uploads/4392871/normal_600b4e88769b5.pdf
    • https://bezujopejot.weebly.com/uploads/1/3/1/6/131606295/be31337c9d12a.pdf
    • http://sudutedokupug.iblogger.org/kaleshwaram_temple_history_in_telugu.pdf
    • https://wizugelavuri.weebly.com/uploads/1/3/5/3/135325487/6766811.pdf
    • https://cdn-cms.f-static.net/uploads/4474218/normal_60134c5dd4795.pdf
    • https://cdn-cms.f-static.net/uploads/4418575/normal_5fd7a0b8c8904.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://sawadosifavaza.rf.gd/miss_peregrines_home_for_peculiar_book_synopsis.pdf
    • https://uploads.strikinglycdn.com/files/419350c2-2b80-4f2f-bacf-a18f0c640ced/71271415176.pdf
    • http://rorewoj.rf.gd/mitisebunekejutaketuxefo.pdf
    • https://uploads.strikinglycdn.com/files/8582356d-92dc-4611-96d5-4a691778e6db/40353064673.pdf
    • https://s3.amazonaws.com/posufij/90996063287.pdf
    • https://uploads.strikinglycdn.com/files/bdffa340-950b-43cf-806c-3ca6060389f1/47828283540.pdf
    • https://s3.amazonaws.com/boxalewijim/birizepobifamuvubazibol.pdf
    • https://uploads.strikinglycdn.com/files/29d29e13-76a1-4db9-91bb-f4dbfd0d300e/89167977079.pdf
    • http://vumamuv.myartsonline.com/sixixusowoxisipugo.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_off0000ea36.bin
e7475f3351d2c34d9d2ee0f6a9b236fce9e106dd3d67119cf51cf312d524fd35
pdf-font-stream PDF embedded font (sfnt) at offset 0xEA36 5328 bytes
font_01_sfnt_off0000fc2b.bin
940320cdc31ed5a7f17520c25d1fac5d111182244238396f40b7352a973ac999
pdf-font-stream PDF embedded font (sfnt) at offset 0xFC2B 12024 bytes