Malicious PDF — malware analysis report

Static analysis result for SHA-256 766b908d7574ab7e…

MALICIOUS

PDF

77.2 KB Created: 2021-02-28 00:18:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 5b018e3995884ca0af74e89a00e31cf9 SHA-1: 1a92d3c78fe1c78a63b8531fa64c46d4ddbbcf6d SHA-256: 766b908d7574ab7efe38654c706463914fbfec41f60fcd0deb18ebf59e61b8b9
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://fokemale.ru/123?utm_term=what+is+directional+test PDF link annotation
    • https://cdn.sqhk.co/bovokolel/Nw4Thbe/cardstock_fall_crafts.pdfIn PDF document text
    • https://cdn.sqhk.co/porekige/b4xjgjf/dragon_pass_app_cooperative_bank.pdfIn PDF document text
    • https://cdn.sqhk.co/gukitane/tYnQnid/zuma_bubbles_games_free_online.pdfIn PDF document text
    • http://xuzobinemipivor.mygamesonline.org/mugirajuxak.pdfIn PDF document text
    • https://cdn.sqhk.co/fukonovum/hiuFiga/luromo.pdfIn PDF document text
    • https://cdn.sqhk.co/muxigatatini/hOgehdh/kendall_and_kylie_episodes.pdfIn PDF document text
    • https://cdn.sqhk.co/rifarako/gxEPhhP/wogajojakedimozufaligu.pdfIn PDF document text
    • https://cdn.sqhk.co/wapuvalapowa/Zjfighc/heartstart_mrx_service_manual.pdfIn PDF document text
    • http://gojavodevagajuw.mygamesonline.org/what_does_a_large_sweet_potato_look_like.pdfIn PDF document text
    • http://pornbustyvids.com/business_project_proposal_samplejajo1.pdfIn PDF document text
    • https://cdn.sqhk.co/bedipidis/xhdThbc/zizilupejodu.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
    • https://s3.amazonaws.com/susonanezaj/29517245349.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/ambari_kannada_picture.pdfIn PDF document text
    • https://s3.amazonaws.com/dekogamik/mechanism_of_transplant_rejection.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/how_to_get_osha_500_certified.pdfIn PDF document text
    • https://s3.amazonaws.com/fusidejebi/82187275709.pdfIn PDF document text
    • https://s3.amazonaws.com/mekonulegipero/mussoorie_tourist_guide_map.pdfIn PDF document text
    • http://tuzuxutetug.atwebpages.com/korean_language_translation_in_english_alphabet.pdfIn PDF document text
    • https://s3.amazonaws.com/pidufozu/88167731819.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e460.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE460 4828 bytes
SHA-256: 873454b3aafb16c9a1621829a37ba2dc9fbebd68f2a48f47bfd81b98b364113b
font_01_sfnt_off0000f4b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4B9 10752 bytes
SHA-256: 834aca07d0920d24242875b0aab343df20a628bb818bc4d5a2db6b4003e3fd3c
font_02_sfnt_off0001197d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1197D 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e