Malicious PDF — malware analysis report

Static analysis result for SHA-256 050a5a57b1348ca0…

MALICIOUS

PDF

97.3 KB Created: 2021-03-18 02:05:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 77ad0353f774471973163c85aeb23373 SHA-1: 564eb9a80ddf97b35b8e405e1f00a63c45d79fb0 SHA-256: 050a5a57b1348ca0b2d7d19c9c22721530194edcc11ad4d142e4673fe531af0f
126 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. The document body contains a deceptive message about opening PDFs, likely intended to trick users into clicking embedded links. The numerous external URLs suggest a link farm designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://kuzutuzo.ru/award?keyword=error+open+pdf+in+new+window+blocked+by+browser PDF link annotation
    • https://cdn.sqhk.co/kekotenonaxu/egj2z8n/lizumisalagej.pdfIn PDF document text
    • http://zibepifutidi.sportsontheweb.net/fifasir.pdfIn PDF document text
    • http://sun-italy.space/free_loan_calculator_for_mobile_phonejcv0a.pdfIn PDF document text
    • http://vumajufeboxidik.mywebcommunity.org/fagedizukiwot.pdfIn PDF document text
    • http://jesawukimefix.mypressonline.com/bubusezivujorexuzanatiwuz.pdfIn PDF document text
    • http://damita.fun/circuit_analysis_1_final_exam5s2xz.pdfIn PDF document text
    • http://grenkasalo4.xyz/2004_dodge_ram_1500_quad_cab_length7ctdo.pdfIn PDF document text
    • http://instasale.company/94309223665sw9z.pdfIn PDF document text
    • http://frukt.fun/supermarket_flowers_lyrics_videoozmn4.pdfIn PDF document text
    • http://setlyb.online/what_is_the_warranty_on_a_trane_ac_unitps5nn.pdfIn PDF document text
    • https://cdn.sqhk.co/gujadozede/dihjg7i/mewubilegilapigumiwubuwu.pdfIn PDF document text
    • http://zespodsvetkoy.site/25074830187wh9kv.pdfIn PDF document text
    • http://ch-redirect.icu/47667412974f05ri.pdfIn PDF document text
    • http://it50off.pro/7902063822079ks5.pdfIn PDF document text
    • http://mgacessoria.online/libepesud0w.pdfIn PDF document text
    • http://rubyshup.space/fekarenipojukukelisogh51tv.pdfIn PDF document text
    • http://f1l3download.site/google_drive_sync_app_androidh13i4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://lazuletezofik.onlinewebshop.net/negufurokogivakepol.pdfIn PDF document text
    • https://d5bea983-5bca-41ba-aae6-6b688785cc77.filesusr.com/ugd/9ec29b_d05fdf3666544b53a55103b0002a9d56.pdf?index=trueIn PDF document text
    • http://vugugemo.atwebpages.com/best_vegetarian_soup_for_weight_loss.pdfIn PDF document text
    • https://9f1be152-2ea1-4306-981d-bfff62ad382d.filesusr.com/ugd/08fb22_2dccaee67f47495585ab2c712aa49cd7.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13169 5004 bytes
SHA-256: 1cbb0e53dff3b0f2eebf7da1f07a4114268d70852a66d266f1111e5d7e8d8a58
font_01_sfnt_off00014280.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14280 11480 bytes
SHA-256: c186471fc66cfa24598625fb565aad1310116e3d6339e01b97dd3da1eff3e9b8
font_02_sfnt_off0001699f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1699F 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

Open this report in the interactive analyzer, or submit your own file for analysis.