Malicious PDF — malware analysis report

Static analysis result for SHA-256 288d006a04f7a224…

MALICIOUS

PDF

56.8 KB Created: 2020-12-01 09:13:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 5de93b7e4ed1f32c5a946918bb8130f2 SHA-1: 170cc5f9d8e29eb99e268fb92dc030d692599921 SHA-256: 288d006a04f7a2240a60490f2476c82b526e3844145a69c86ff06cad3ce2db33
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 URL pointing to a suspicious domain, identified by ClamAV and a machine learning classifier as malicious. The document body, though heavily obfuscated, suggests a lure related to 'Bajaj Allianz health insurance', indicating a phishing attempt to direct users to the malicious URL for potential credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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://trafffe.ru/aws?utm_term=bajaj+allianz+health+insurance+pdf PDF link annotation
    • https://jibametugo.weebly.com/uploads/1/3/4/4/134486067/2555273.pdfIn PDF document text
    • https://tagelararejo.weebly.com/uploads/1/3/4/8/134846357/1754978.pdfIn PDF document text
    • https://nikibowo.weebly.com/uploads/1/3/4/3/134354591/wolota-gekuwajimu-sibikogata.pdfIn PDF document text
    • https://ganizosu.weebly.com/uploads/1/3/4/4/134434359/kavudu-lukot-niwufibinifis.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc15e0c3dfdd95b60d85a11/t/5fc4c9f8cb3e0f5771e657c2/1606732283760/special_quadrilaterals_rectangle_rhombus_square_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e8e9b54-aaa3-46c9-b4cc-ac28edaa157d/pocket_morty_crafting_battery.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d7c89955c744b53b4369/t/5fc2359feaf37e3b64e5bb20/1606563232589/thank_you_for_being_patient_with_me_quotes.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/isotopes_and_atomic_mass_lab_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0fe386b97992eb55c938e/t/5fc3a0da6457125654ab099c/1606656219369/tonazowomasirigotatel.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a6e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6E8 5416 bytes
SHA-256: 258fa641a2fc9744ac97d09e9513de39414730a3f874b858cecb49562551cc99
font_01_sfnt_off0000b959.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB959 8592 bytes
SHA-256: 22a4aa6af7521c9fcbc49e060b5cfc76a7fc588e4123d97cfab7ae15ea9098ea