Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ce30a1a037c6416…

MALICIOUS

PDF

68.9 KB Created: 2021-03-25 13:50:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66b7c2cd3a26023cd8d2b86bae869924 SHA-1: 100de781a670e5f8671384095dd9bf233ab06ca3 SHA-256: 9ce30a1a037c641609bbbb7070a60d62aa761f47e6ef694b3ad1d94326ea70bb
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URL that, when clicked, leads to a domain associated with phishing lures. The document body, though partially corrupted, suggests a lure related to a 'Burger King menu breakfast platter' to entice users to click the malicious link.

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://seumenha.ru/strik?utm_term=burger+king+menu+breakfast+platter
    • https://cdn.sqhk.co/dedikunakudu/cszo5gc/lego_batman_dc_super_heroes_walkthrough_arkham_asylum.pdf
    • https://cdn-cms.f-static.net/uploads/4464529/normal_603b4bf2a7262.pdf
    • https://cdn.sqhk.co/ribovonubod/jcnXVrT/microsoft_bookings_admin_centre.pdf
    • https://static.s123-cdn-static.com/uploads/4391893/normal_5fca6d2740186.pdf
    • https://cdn-cms.f-static.net/uploads/4380083/normal_6052abf96a2b9.pdf
    • http://pemufosapakem.mypressonline.com/roralu.pdf
    • https://cdn.sqhk.co/wepurodapike/Kjj1jgc/hide._io_apk_mod.pdf
    • https://static.s123-cdn-static.com/uploads/4459780/normal_6005aed1859dc.pdf
    • https://cdn.sqhk.co/borefigux/jflNbgO/22448859390.pdf
    • https://cdn-cms.f-static.net/uploads/4425726/normal_603f3259b6f6f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pubodetag.rf.gd/lawn_boy_parts_ontario_canada.pdf
    • http://totoxosogazu.rf.gd/balboa_park_san_diego_map.pdf
    • https://uploads.strikinglycdn.com/files/437c0818-d93b-4c58-afdc-05ba8c3169a9/indian_history_books_in_telugu.pdf
    • http://patepupitisozaw.epizy.com/blouse_stitching_tutorial.pdf
    • http://litorow.myartsonline.com/vikud.pdf
    • https://uploads.strikinglycdn.com/files/9d4a6ca0-5eb6-4011-9b0c-01c36879eb47/garejuzilefujozo.pdf
    • https://uploads.strikinglycdn.com/files/b8448f17-54b9-42d8-aabc-d3b85755282a/mutoxexaginowuvuzoj.pdf
    • https://uploads.strikinglycdn.com/files/7bb09d74-1d9f-4141-a251-c9ef9b2c9611/53217455108.pdf
    • http://fuvovidesom.epizy.com/soothing_baby_music.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_off0000cd80.bin
3f31e783fe144a74fdb019c32c56b40215e1343f932026b80a288eef5979dff8
pdf-font-stream PDF embedded font (sfnt) at offset 0xCD80 5476 bytes
font_01_sfnt_off0000e013.bin
184b2e187042f19587c2db8058ee595925818de4b7b01dab3c6d525173fb7e80
pdf-font-stream PDF embedded font (sfnt) at offset 0xE013 10652 bytes