Malicious PDF — malware analysis report

Static analysis result for SHA-256 64b3dafbe1bae3ac…

MALICIOUS

PDF

71.7 KB Created: 2021-03-24 20:02:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0e1ffa0da78e082fbc0ca9aa61d46965 SHA-1: d75b702cc7b20e64e59fbf585b322c853c2ce1f4 SHA-256: 64b3dafbe1bae3ac728412678a0b631e73a97e46e2e16a04879284ffc8439e12
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL, identified as malicious by ClamAV and ML classifiers. The document body, though heavily obfuscated, appears to reference 'Bissell cleanview helix 82h1 replacement parts', suggesting a lure to disguise the malicious intent. The primary malicious URL found is https://xezojetit.ru/strik, which is likely used for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xezojetit.ru/strik?utm_term=bissell+cleanview+helix+82h1+replacement+parts
    • https://static.s123-cdn-static.com/uploads/4487424/normal_5ff6515c16866.pdf
    • https://cdn-cms.f-static.net/uploads/4450428/normal_603208d8a330d.pdf
    • http://wei-nmvc.com/night_begins_to_shine_sheet_musicmu4yt.pdf
    • http://epipog.com/what_is_zooming_in_photographyjhg4j.pdf
    • https://cdn-cms.f-static.net/uploads/4382423/normal_602dd3ce600de.pdf
    • http://idealicaitalia-official.site/50458736162lkvii.pdf
    • http://balifruit.com/sonixijefiq9cfu.pdf
    • http://makeyourself.xyz/tewuriym6nl.pdf
    • https://static.s123-cdn-static.com/uploads/4405642/normal_5ff94301eb9c1.pdf
    • http://tronreserve.online/hr24-500_vs_hr24-100m8yut.pdf
    • http://bestita.space/country_music_stars_word_search_puzzleahahe.pdf
    • http://verification-help.business/weezer_i_am_the_greatest_man_that_ever_lived_lyricsy79j5.pdf
    • https://static.s123-cdn-static.com/uploads/4443598/normal_5ffc994e5cb4c.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/teximikamukubo/the_norton_anthology_of_american_literature_shorter_ninth_edition.pdf
    • https://uploads.strikinglycdn.com/files/9bd61c7b-6268-41c8-a03a-4b19727bdafe/magic_chef_mcwc28b_wine_cooler_28_bottle_black.pdf
    • https://s3.amazonaws.com/luworizesupox/what_is_community_based_rehabilitation_program.pdf
    • https://s3.amazonaws.com/nisoxow/zolirutezuviwisaf.pdf
    • https://uploads.strikinglycdn.com/files/54accec3-74ac-4c03-96bf-8c9db25e2876/81018822494.pdf
    • https://s3.amazonaws.com/minaxigevani/born_a_crime_summary_chapter_18.pdf
    • https://s3.amazonaws.com/bevekizadoxuj/mla_reference_sheet_example.pdf
    • https://s3.amazonaws.com/gitipelut/33304638007.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d5da.bin
a8c24d2b9cd1dba5c403a206e95448328facd3a9a2b80d02da45424fae586a7e
pdf-font-stream PDF embedded font (sfnt) at offset 0xD5DA 5820 bytes
font_01_sfnt_off0000e9a0.bin
f13ab5f1034fc95bd1734acff86d9c5351b33f3ce7ef207a730f4faf082e6ab1
pdf-font-stream PDF embedded font (sfnt) at offset 0xE9A0 11088 bytes