Malicious PDF — malware analysis report

Static analysis result for SHA-256 f573be8887607403…

MALICIOUS

PDF

86.6 KB Created: 2021-03-11 04:17:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8549afd1b3e84dd9298ea32f97d83fda SHA-1: df34e756c45dc657b46767afeff68b4c7e2d14fa SHA-256: f573be888760740340f29921abd436d70cfafed81f0a06bd80134405ab96e15a
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://lozipotod.ru/award?keyword=taxonomia+y+clasificacion+de+los+seres+vivos+pdf', suggesting a phishing or social engineering attack. The document body, though heavily obfuscated, appears to be related to the URI's keyword, reinforcing the lure.

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://lozipotod.ru/award?keyword=taxonomia+y+clasificacion+de+los+seres+vivos+pdf
    • http://mesanezedid.mypressonline.com/how_to_do_reflective_writing.pdf
    • http://fefiwizam.sportsontheweb.net/24071315270.pdf
    • http://kidupat.getenjoyment.net/malivorerugop.pdf
    • http://lumufurisazela.mywebcommunity.org/wordly_wise_3000_book_6_lesson_9.pdf
    • https://cdn.sqhk.co/borefigux/Mhb6AhG/mobapuzakegese.pdf
    • https://cdn.sqhk.co/pawapoma/hjfhjFp/riwabakaxudibarovobesoxud.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/d74ff8a5-3f8a-4119-9281-140f518c1f51/nujowa.pdf
    • https://uploads.strikinglycdn.com/files/38e015d4-a13c-46e3-aee0-518523766e48/troy_bilt_tb130_xp_parts_diagram.pdf
    • https://s3.amazonaws.com/zemunomipazikez/2015_chevy_tahoe_navigation_system_manual.pdf
    • http://lavodusepigixu.rf.gd/cisco_anyconnect_macos_4._7.pdf
    • http://getidevip.epizy.com/zonugedituzibiletesogeli.pdf
    • https://uploads.strikinglycdn.com/files/563745d0-a67a-4099-a98c-541352b23f4f/27779077063.pdf
    • http://vixoboguwexalo.rf.gd/jujugofo.pdf
    • https://uploads.strikinglycdn.com/files/67f3d808-2195-48d0-bf65-2aa6c1642230/lulaxesavijojapinufubig.pdf
    • https://s3.amazonaws.com/vatosolikijike/how_he_loves_chords.pdf
    • http://momedeturus.epizy.com/mainsheet_traveler_rigging.pdf
    • http://xozujojunesu.epizy.com/access_control_system_basics.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001078e.bin
de4139b929cc8261df119ff47c0124ea38eb364f3325e13d267be32c67bfbe24
pdf-font-stream PDF embedded font (sfnt) at offset 0x1078E 5188 bytes
font_01_sfnt_off0001191a.bin
41fbcda6838101f076a14979577f9ddbab2123011d04fd149b4fa0fe40595a28
pdf-font-stream PDF embedded font (sfnt) at offset 0x1191A 11688 bytes
font_02_sfnt_off00013ecd.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x13ECD 4324 bytes