Malicious PDF — malware analysis report

Static analysis result for SHA-256 563501d78a1382c0…

MALICIOUS

PDF

74.1 KB Created: 2021-02-14 23:58:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 07135a7a8fb1cfd59f7957c1e059f0df SHA-1: cb04eda348f2daa57970d285c87f16b4f533aed1 SHA-256: 563501d78a1382c03fb4fa9e15f973f31b218fb656ec7c9444a3706b738efa47
126 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to 'https://maypoin.ru/aws?utm_term=cute+baby+crying+whatsapp+status+video', which is likely a phishing or malware distribution site. The document body, though partially corrupted, contains text suggesting a lure related to social media content, consistent with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://maypoin.ru/aws?utm_term=cute+baby+crying+whatsapp+status+video PDF link annotation
    • http://rolevuses.iblogger.org/blood_money_all_song_pagalworld.pdfIn PDF document text
    • http://libralab.digital/88324725952zawdc.pdfIn PDF document text
    • http://difulomutanuv.iblogger.org/choose_past_verb_form.pdfIn PDF document text
    • http://pamesiso.22web.org/40442558283.pdfIn PDF document text
    • http://nashremont.site/castbox_app_apkjqt5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413564/normal_6011df433ea87.pdfIn PDF document text
    • http://avit0.cc/how_to_attach_files_in_one_filev0twv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/somisilegex/face_notify_app.pdfIn PDF document text
    • https://s3.amazonaws.com/sazariwapa/finite_sequence_worksheet.pdfIn PDF document text
    • http://xepalufozakot.epizy.com/gentleman_jack_music.pdfIn PDF document text
    • http://ralixafuligo.rf.gd/ultra_hd_video_website.pdfIn PDF document text
    • http://reditab.epizy.com/rewadofawajonilugudevesin.pdfIn PDF document text
    • http://fixaxinalumujax.epizy.com/cascade_strategy_template.pdfIn PDF document text
    • http://ratadipemor.epizy.com/11419933306.pdfIn PDF document text
    • http://gekabogaramal.rf.gd/dupont_tyvek_tape_data_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/blacksmithing_guide_vanilla_1-_300.pdfIn PDF document text
    • https://s3.amazonaws.com/pulujolatepuv/5_tab_clear_label_divider_template.pdfIn PDF document text
    • http://zifopodisinuri.rf.gd/zawetadiduvaterolujut.pdfIn PDF document text
    • http://wunamejuvut.epizy.com/livope.pdfIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c18e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC18E 5600 bytes
SHA-256: d1ff65ebb67efba0c9c3253bbfe525f064f904401e2aba43c882a2649086cf0b
font_01_sfnt_off0000d4a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A1 10472 bytes
SHA-256: 8e84221184dcf717273c7067951bce709cc5d6fa85d87899893e6af5353110af
font_02_sfnt_off0000f892.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF892 16416 bytes
SHA-256: 1b19f5b9ae2aeff7929e120295d9aee049321614abc14b3ca723126b23f9dd5b
font_03_sfnt_off00010ec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EC0 2820 bytes
SHA-256: 6ef408c5556e6add24229457e8e56aa1a8bb033f7b0bdea44f33bf9b036ab372

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