Malicious PDF — malware analysis report

Static analysis result for SHA-256 06ebeb7174a0ede3…

MALICIOUS

PDF

82.6 KB Created: 2021-05-11 02:25:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 296e89e22d251bff4dc3558d3cd36321 SHA-1: 7e137369cdcc394276c3107e6ed5ec0b97ec5fbe SHA-256: 06ebeb7174a0ede3b870bcaa73f2d3949a4a42c7bc5f0caf1b36807b594ac2d6
244 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, including a link farm and a lure to copy/paste content into a shell, suggesting it's part of a phishing or malware distribution scheme. The presence of embedded URLs and the ClamAV detection further support its classification as a phishing/malware delivery mechanism. The document body, though heavily obfuscated, contains text related to downloading software, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 8

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://seumenha.ru/strik?utm_term=download+adobe+premiere+pro+cc+2020+macbook
    • http://vugivanasidej.22web.org/vufaraxazuju.pdf
    • https://guxovegetixewaz.weebly.com/uploads/1/3/2/3/132302910/9090960.pdf
    • http://fitukogamoj.iblogger.org/schengen_visa_application_form_south_africa_france.pdf
    • https://dokegofixak.weebly.com/uploads/1/3/0/8/130873830/xiwuvozav-melulubiruru-roxusibufodivuz.pdf
    • https://zedodunojoponex.weebly.com/uploads/1/3/6/0/136083391/totatusexusizajolir.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cf075d60-af7c-4c71-a16c-5c8c125a9bb7.filesusr.com/ugd/cc03df_f422ac24701946fd831f7a51c0fd24c3.pdf?index=true
    • https://9e730ba1-499c-413e-9a09-8a81f8121270.filesusr.com/ugd/0a0016_4c0e3b758625480ea6aebafb3b635c43.pdf?index=true
    • https://s3.amazonaws.com/zeworibuzoza/engineers_black_book_2nd_edition_uk.pdf
    • https://s3.amazonaws.com/dupula/1801953513.pdf
    • http://jugebifa.epizy.com/make_your_home_among_strangers_themes.pdf
    • https://b1706aec-e9b1-4c6c-9a93-f14ef4a1c402.filesusr.com/ugd/3b47cb_f7c10ed21a0a41748d73f37aa3f49251.pdf?index=true
    • https://s3.amazonaws.com/pevarijidasalop/baaghi_2_film_video_song_pagalworld.pdf
    • https://s3.amazonaws.com/baxekojojexusol/ley_de_ohm_ejercicios_circuitos_en_paralelo.pdf
    • http://jinibodakix.epizy.com/43023860802.pdf
    • https://631ffb88-cf2d-4844-8d6b-9338a1b21cc5.filesusr.com/ugd/d24e6f_0f2c912c079f4191b70559f13ee208f6.pdf?index=true
    • https://s3.amazonaws.com/wusone/dream_league_soccer_classic_hacked_apk.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f2be.bin
54e3c97a615d150c24d8ea35bcd8f8746c34d357c3796b5c544f72d340a3bea2
pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BE 5612 bytes
font_01_sfnt_off000105cd.bin
62a3aca0869df2d5ea2d867d1dba901cc091a30162615a255b08ed8650221a31
pdf-font-stream PDF embedded font (sfnt) at offset 0x105CD 2096 bytes
font_02_sfnt_off00010fab.bin
0a410ed04164d1119ad965c13abe37ad8bb48b790878057828b38808b4496f09
pdf-font-stream PDF embedded font (sfnt) at offset 0x10FAB 11060 bytes
font_03_sfnt_off00013553.bin
74be5bc4d46f64e5c506ae1006f7022dc98ebf960e37c7bf417c2027ca73106d
pdf-font-stream PDF embedded font (sfnt) at offset 0x13553 1736 bytes