Malicious PDF — malware analysis report

Static analysis result for SHA-256 a59163eb3aa2dda2…

MALICIOUS

PDF

79.6 KB Created: 2021-03-01 08:25:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 958cc2ad32bf78cfd83052080a8d5189 SHA-1: 3486ee737966e577f78c40f3ef0f75262c9bbe7f SHA-256: a59163eb3aa2dda258eb48334cf93b2f6f6a2b451a976af095123ce68508b3ca
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 0.9997

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://baarspo.ru/123?utm_term=the+shape+of+things+plot+summary PDF link annotation
    • http://menetufebev.22web.org/automate_android_apk.pdfIn PDF document text
    • http://tedusoxunola.22web.org/99512315105.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424689/normal_60273154c9fb9.pdfIn PDF document text
    • http://tofotibuwul.sportsontheweb.net/what_are_the_5_characteristics_of_god.pdfIn PDF document text
    • http://laura-egorova.ru/ruzojizenepiz34pp.pdfIn PDF document text
    • http://trynutra.shop/58591650715bc01z.pdfIn PDF document text
    • http://creditpm.com/what_is_the_chronology_of_the_witcher_netflixx2rae.pdfIn PDF document text
    • http://mexuloxuxinona.iblogger.org/cerf_volant_de_kaboul.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://xovolefewawex.atwebpages.com/32214076703.pdfIn PDF document text
    • https://s3.amazonaws.com/bupesejirijejus/fonon.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/bihar_police_syllabus_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/valikanatabonexavipilak.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/4liker_instagram_apk.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_off0000eba6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA6 5248 bytes
SHA-256: 67671962733f5d760fed71476fd5635a9e007ffdc1725e863131955737ea5660
font_01_sfnt_off0000fd57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD57 11056 bytes
SHA-256: 2cd996a0ff38f80f779ff8ad0caf3a6ab38e1a1dfd290848f7452425098cfd0c
font_02_sfnt_off0001230a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1230A 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e