Malicious PDF — malware analysis report

Static analysis result for SHA-256 d59219751fa88dfe…

MALICIOUS

PDF

73.3 KB Created: 2021-02-22 19:00:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 869d12f648478148ee0f884baa9cf23a SHA-1: 6226e37aafe5094ff121c49e3eda2a117779de84 SHA-256: d59219751fa88dfea9d47d25c69c5e431108ff189f661343f2779a597080d21f
104 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. It uses an urgency-based lure. 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 0.9998

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/strik?utm_term=disable+hands+free+mode+samsung+s4 PDF link annotation
    • https://cdn.sqhk.co/tumowara/GhgYijH/59843053364.pdfIn PDF document text
    • https://cdn.sqhk.co/totudavomud/5hdzAgc/26171638247.pdfIn PDF document text
    • https://cdn.sqhk.co/mukibusu/jjhbaia/bloody_roads_california_apk_mod.pdfIn PDF document text
    • http://wuwisometojone.66ghz.com/why_digital_transformation_efforts_fail.pdfIn PDF document text
    • https://cdn.sqhk.co/fefamuve/GOa1ggy/96712293096.pdfIn PDF document text
    • https://cdn.sqhk.co/rixutixim/bQSrTQw/laralopeg.pdfIn PDF document text
    • https://cdn.sqhk.co/miviterul/cgjxjaO/dark_knight_rises_not_on_hbo_max.pdfIn PDF document text
    • https://cdn.sqhk.co/zofizitene/idoidTd/59886669141.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://refowokewip.rf.gd/printable_lite_brite_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/ponivotigegepub/baixar_jogos_para_android_via_utorrent.pdfIn PDF document text
    • http://mafovito.rf.gd/verifone_vx570_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/wugogafenenivi.pdfIn PDF document text
    • http://bumitorazefi.epizy.com/ktp-445a_power_pack_ready.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_off0000d228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD228 5348 bytes
SHA-256: 2816c206ebafa9b626f20b9e6502d522cc88790d4afb439377765ee6b19da804
font_01_sfnt_off0000e414.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE414 11280 bytes
SHA-256: 296e2d9ddffbff2d6c51e19083515dc5b7487df19be6cf6a20f4915d0b82d356
font_02_sfnt_off00010a73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A73 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71