Malicious PDF — malware analysis report

Static analysis result for SHA-256 01245f9f1af2e2e7…

MALICIOUS

PDF

76.9 KB Created: 2021-03-15 20:03:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2e572609025edc8686f97cab9a3eea55 SHA-1: 2c650e0fa7ebd15f1dc5e0eb560691835a9998d2 SHA-256: 01245f9f1af2e2e7da9e3190bbf4e1c5f849f58fb4f1d110eae1ac14955eef9c
116 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution T1190 Exploit Public-Facing Application

The file is a PDF document flagged by ClamAV as a phishing trojan. Heuristics indicate it contains a callback phishing lure, prompting the user to call a phone number related to a recall or billing dispute. The embedded URL `https://ponafet.ru/aws?utm_term=danby+ddr60a3gp+recall` is likely part of the lure or a secondary payload delivery mechanism. While no scripts were explicitly extracted, the PDF structure and ML classification suggest it exploits vulnerabilities to deliver a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://ponafet.ru/aws?utm_term=danby+ddr60a3gp+recall
    • http://gepexoliv.medianewsonline.com/bewomoremodonibutu.pdf
    • http://gitilapen.66ghz.com/37474990628.pdf
    • http://zosuwalerikare.getenjoyment.net/74009985064.pdf
    • http://fumatiw.mypressonline.com/62013576923.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/c5c3eac6-a625-4313-b56c-d4da6bcce106/how_to_install_goaliath_54_in-ground_basketball_hoop.pdf
    • http://wupepiwora.rf.gd/synergy_1._4._17_ubuntu.pdf
    • http://nijupilunijar.rf.gd/29940155488.pdf
    • http://bividit.rf.gd/canada_map_quiz.pdf
    • https://uploads.strikinglycdn.com/files/ad7bb8ee-9da0-4dc2-9865-58720ba8b103/87257603079.pdf
    • https://uploads.strikinglycdn.com/files/71101b51-07b6-458f-86a7-89374ebc7019/91305603450.pdf
    • http://nekepozime.epizy.com/googlesamples_android_architecture_components.pdf
    • https://uploads.strikinglycdn.com/files/a9b555c2-c2ab-4e15-9831-c0023551d7d2/tojodevanizupepe.pdf
    • https://uploads.strikinglycdn.com/files/ba616c1e-7ebe-4e62-aa98-3000c69fd110/zodunebi.pdf
    • https://uploads.strikinglycdn.com/files/770677a1-0b83-40a8-a3fe-fdf18601a825/zojirushi_micom_water_boiler_and_warmer.pdf
    • http://seroritubofa.atwebpages.com/types_of_drill_in_indian_army.pdf
    • https://uploads.strikinglycdn.com/files/743e00ca-837c-4300-a324-f04efbb2efd2/guzoteput.pdf
    • http://geralumumavol.rf.gd/rutupegidevebulitu.pdf
    • https://uploads.strikinglycdn.com/files/90f1f672-6cba-498f-bb78-1e5b7359ab4e/milefowexezip.pdf
    • http://laxizibobi.rf.gd/facial_nerve_disorders_and_diseases_diagnosis_and_management.pdf
    • http://boxakuwila.epizy.com/dilated_cardiomyopathy_treatment_guidelines.pdf
    • https://uploads.strikinglycdn.com/files/afa6682f-d0e0-44cc-bd75-8a51c9f17ae7/74207462530.pdf
    • http://sujabugepebizud.rf.gd/what_is_the_best_diet_for_inflammation.pdf
    • http://xarilupinedup.myartsonline.com/81143403728.pdf
    • http://jojemoditupu.rf.gd/learning_write_letters_alphabet_worksheets.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_off0000ec52.bin
99334328a0cae411d2453cd3714a54e31297707e3c789067859a88e26fba7213		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC52 5764 bytes
font_01_sfnt_off0000ffff.bin
3bf59ee8e804097c6596e10881ad96d92e48d3d1b3505fe86d38b1f782bf7451		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFFF 11276 bytes

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