Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e9676ef6033f725…

MALICIOUS

PDF

78.4 KB Created: 2021-03-28 10:48:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 117fb3d7f41a41e67de74dd8124d4c09 SHA-1: c3779ab4e67e431fea51e6187f517e69d2c54d0c SHA-256: 5e9676ef6033f725acc174ef0e31c3015ba4075b2e0f59cc04beddbff96f2db2
116 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The file is a PDF document flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious phishing content. The document body, though partially garbled, contains references to 'Axis bank internet banking form pdf', and a heuristic specifically identifies a 'Callback phishing phone lure'. The embedded URL also points to a domain associated with the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • 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://seumenha.ru/award?keyword=axis+bank+internet+banking+form+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4421776/normal_60303d15602ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471109/normal_601b8023e8f26.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495997/normal_60225373bf4ab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373757/normal_600751b6b43c0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zozofufulolig/how_to_clean_vicks_germ_free_cool_mist_humidifier.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce134566-b2b6-4616-b293-c58dff7a7134/what_is_the_rarest_skin_condition.pdfIn PDF document text
    • https://s3.amazonaws.com/pusori/fojubo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eff5ecae-a520-4c35-8d63-e69edf4dcb22/webajadepudipul.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/rise_of_nations_extended_edition_full.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c36e977-c26d-4cf9-88ab-1127777c7d1c/alone_together_filipino_movie_online_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2667bfa8-302f-47ea-b1b2-6609ae32438c/putting_the_one_minute_manager_to_work_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a04216e6-eeaf-462b-a400-29f0f98942c4/jemibubuxoku.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/46256390580.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9d5770e-efc0-4a8b-9e7d-d539fb3cffc3/92582866096.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/how_to_do_line_of_best_fit_on_desmos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b619e28f-b033-4602-a619-f3ad9524bd44/88708958672.pdfIn PDF document text
    • https://s3.amazonaws.com/mikibetiv/28531556385.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27c87f5a-31e2-4b02-9820-3550878ea7ca/civics_today_textbook_chapter_7.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/southeastern_freight_lines_bill_of_lading_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9183176a-e4e4-4005-b529-f21c60bde753/40900818786.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9dd2c02-145b-4278-a3c8-8cf951f5d359/pulelosoneseteliwazimifef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf0bdbf3-af21-4668-bd52-0732ced3abbc/70439869992.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8e987ec-d704-426c-b8c5-2a4f1d2822cc/premiere_pro_transitions_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/xawenar.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB4 5588 bytes
SHA-256: 46af86a7c391929b2798de687372f4fede0c37d2596277b8bce770b43c383230
font_01_sfnt_off0000efaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFAA 10708 bytes
SHA-256: ed38bc856c3d62a52e51eb87b204e3371cd837e07638f30f42f4e1f9fa0602f4
font_02_sfnt_off0001145c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1145C 16172 bytes
SHA-256: b6a6ca5d1ececf9b8f85cf34f243a5152d852bd6c46ff1fd844468d100e5349c