Malicious PDF — malware analysis report

Static analysis result for SHA-256 534396bd0992a321…

MALICIOUS

PDF

82.2 KB Created: 2021-05-14 09:51:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bcbea1376b5d421ec306d8b062969dc SHA-1: ce28b39de28f3017acd0adcdbda7b6d359ea5b2e SHA-256: 534396bd0992a321213c7cd320986f9da492779ea7a03a3cb7a1b88f000d826c
136 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of a PDF_URI heuristic pointing to a suspicious URL, combined with the SE_PASSWORD_ARCHIVE_LURE heuristic, suggests the document is designed to trick users into downloading a password-protected archive. This is a common tactic for delivering malware, often involving a secondary download or execution stage initiated by the archive's contents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://midufefew.ru/strik?utm_term=dragonlance+5th+edition+conversion
    • http://manubazarexom.22web.org/how_to_use_my_ge_convection_oven.pdf
    • http://wuvevaj.iblogger.org/80802410314.pdf
    • http://sugewute.22web.org/40856546931.pdf
    • https://cdn-cms.f-static.net/uploads/4369512/normal_6056ff9198487.pdf
    • https://static.s123-cdn-static.com/uploads/4404515/normal_60009b8b41c5b.pdf
    • https://static.s123-cdn-static.com/uploads/4480581/normal_5fded1e69275b.pdf
    • https://static.s123-cdn-static.com/uploads/4454040/normal_5ff7602d17223.pdf
    • https://cdn-cms.f-static.net/uploads/4467300/normal_606ea8551a3d5.pdf
    • https://cdn-cms.f-static.net/uploads/4491175/normal_60235d1f7c8f0.pdf
    • https://cdn-cms.f-static.net/uploads/4415935/normal_606475e5b67c9.pdf
    • https://cdn-cms.f-static.net/uploads/4393631/normal_605d0a7f4fc76.pdf
    • https://cdn-cms.f-static.net/uploads/4494874/normal_600e2364496a9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/773e5b26-1f60-47b6-b41e-5aa237c9f801/32286338629.pdf
    • https://s3.amazonaws.com/tixedujegibex/english_101_proposal_essays.pdf
    • https://s3.amazonaws.com/perurulexi/56359078697.pdf
    • http://jedajokojar.epizy.com/how_to_use_a_volkswagen_emergency_key.pdf
    • https://uploads.strikinglycdn.com/files/860ca221-a5f7-4a09-86ba-f0724d6bf0e9/what_is_the_opposite_of_monster.pdf
    • https://s3.amazonaws.com/kukazowox/mimonalosibolini.pdf
    • https://uploads.strikinglycdn.com/files/2428ede7-70f3-4884-a97d-9a726dc8ce77/16240929614.pdf
    • https://uploads.strikinglycdn.com/files/9bae6d3d-13e9-4605-88b9-3fadb63deb2f/groove_essentials_1.0_download.pdf
    • https://s3.amazonaws.com/ratixifo/because_of_mr._terupt_full_book.pdf
    • https://s3.amazonaws.com/fadupazageraf/film_lookbook_template_free.pdf
    • http://favigagiwu.epizy.com/nexus_9000_macsec_configuration_guide.pdf
    • https://uploads.strikinglycdn.com/files/5bc0b676-655e-4516-a111-620c90e3b582/15763507728.pdf
    • https://s3.amazonaws.com/zazelujeju/33755965115.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_off0001049d.bin
bdd1c8fd5069bb665ce926a4c7084540e4ffeea5ab8306518003d3932b70b6dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1049D 5384 bytes
font_01_sfnt_off000116f3.bin
1388ac1298845728847587c36b044caa46c8ff651461667e2b6c947f517bb7f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x116F3 10708 bytes

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