Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8ce5b00baf7dfe5…

MALICIOUS

PDF

80.0 KB Created: 2021-03-08 03:31:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66439deb7b8d2445e9d4661461c602cb SHA-1: 7336f6ba8116e78fa5cb2fd4f4cacf82c1b5a407 SHA-256: f8ce5b00baf7dfe56cec94034b994b2d81cf850afb28ecd11d480578d66200cc
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 URI pointing to a suspicious domain, likely intended to trick the user into visiting a phishing or malware-hosting site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious resource.

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://leonvi.ru/wix?keyword=crusaders+of+the+lost+idols+cheat+codes
    • http://rowexusaje.mypressonline.com/taxonomia_de_bloom_verbos_para_objetivos_especificos.pdf
    • https://cdn-cms.f-static.net/uploads/4486356/normal_601a00e319809.pdf
    • https://cdn-cms.f-static.net/uploads/4366381/normal_6028160e7344c.pdf
    • https://cdn.sqhk.co/pijovowifil/icHjfRe/kakareva.pdf
    • https://cdn.sqhk.co/felibepudu/h3YXgLy/amma_name_images_free.pdf
    • https://cdn.sqhk.co/nejajevafode/z4ZGibd/the_bubble_shooter_story_level_164.pdf
    • https://cdn-cms.f-static.net/uploads/4485818/normal_5fdc6b70a2068.pdf
    • http://pivifemopore.22web.org/saskatchewan_boating_license_manual.pdf
    • https://cdn-cms.f-static.net/uploads/4417806/normal_600fe56864703.pdf
    • https://static.s123-cdn-static.com/uploads/4489247/normal_6009245928f9c.pdf
    • http://murezisafedamaw.22web.org/napifolekopif.pdf
    • http://rozujed.sportsontheweb.net/93175275261.pdf
    • https://cdn.sqhk.co/zubejavaxuvu/i5sjejc/87267925709.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://lunujebof.rf.gd/freddie_mac_guidelines_on_bonus_income.pdf
    • http://kanoduluzoxa.epizy.com/pojuxise.pdf
    • http://xafapitadejafi.epizy.com/43843337876.pdf
    • https://uploads.strikinglycdn.com/files/178bf940-6340-476e-99ed-f126f809582d/58713550022.pdf
    • http://tuwafexom.epizy.com/magistrates_court_sentencing_guidelines.pdf
    • http://tavamikilav.myartsonline.com/2012_chevy_impala_ltz_0-60.pdf
    • https://uploads.strikinglycdn.com/files/b81021b0-9154-4f18-a3e4-fb00886ba352/conair_weight_watchers_scale_ww78_manual.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_off0000fbda.bin
eaeb28345882b8a108a9db3557403054d14117bb481ed17d580be3f957fb40bf
pdf-font-stream PDF embedded font (sfnt) at offset 0xFBDA 5012 bytes
font_01_sfnt_off00010cdc.bin
6cc778628c0b2ec2151b399b014b9a973ea6020b8077e4b2e6c31c798376d129
pdf-font-stream PDF embedded font (sfnt) at offset 0x10CDC 11368 bytes