Malicious PDF — malware analysis report

Static analysis result for SHA-256 86500b24da8c9481…

MALICIOUS

PDF

67.8 KB Created: 2020-11-25 06:07:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 312cf3abb238fd4f32e4b9016ca88a7f SHA-1: d701d5ebe04b18a3a49579e2b254a08470889200 SHA-256: 86500b24da8c94813b938c2093a3e0d576e5dfb7955d39095cf25824b2148c85
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by heuristics and a machine learning classifier as malicious. ClamAV also detected it as a phishing trojan. The document body is heavily obfuscated, but the presence of the external URI suggests an attempt to redirect the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafficel.ru/strik?utm_term=how+majestic+is+your+name+michael+w+smith
    • https://cdn-cms.f-static.net/uploads/4415292/normal_5f960099c51d6.pdf
    • https://cdn-cms.f-static.net/uploads/4366676/normal_5fad954e68cf3.pdf
    • https://cdn-cms.f-static.net/uploads/4366625/normal_5fa4d55bc85c7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jitimesolagun/pemebenarawodidegevus.pdf
    • https://s3.amazonaws.com/dixaleko/irrigation_agronomy_book.pdf
    • https://s3.amazonaws.com/wumodukubaru/64217682574.pdf
    • https://uploads.strikinglycdn.com/files/f5ac5f26-769a-4571-9789-6c53f06e9962/zizupapanupafageraj.pdf
    • https://s3.amazonaws.com/donarepemi/iphone_battery_case_xr.pdf
    • https://uploads.strikinglycdn.com/files/0bc0be71-282b-41e9-9da0-168cd7c759cd/doludegifobonumupekuvoj.pdf
    • https://s3.amazonaws.com/kasuwevovog/xesawiworizukuzopof.pdf
    • https://s3.amazonaws.com/tagorarib/gupevomuvivoxis.pdf
    • https://s3.amazonaws.com/zamemigojat/valentine_s_day_tamil_status_songs_free.pdf
    • https://uploads.strikinglycdn.com/files/7ff25222-53e5-4418-b29c-af867649adb9/74028766946.pdf
    • https://s3.amazonaws.com/zunewidimem/41725980088.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_off0000cb83.bin
23a41164a245d5c20e3adf6268423647b025a82f582a2930f3e19758d3553ea9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB83 5272 bytes
font_01_sfnt_off0000dd56.bin
eb3c410e6c988462fb7664574805301a87a141c2c3a615013fccae2031cf83fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD56 11040 bytes

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