PDF malware analysis — malicious · e591c39d3d8c4f0f

MALICIOUS

PDF

89.3 KB Created: 2021-05-23 19:28:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22

MD5: c41524d1142111c730a5a0ddb3551420 SHA-1: 71d0ddf0f8c6db00672e85952864aed26a32b285 SHA-256: e591c39d3d8c4f0fc6cbe08dba1b91de7b12f91054a8ed80cf5e027669324d92

116 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URL that directs users to a suspicious domain, likely to deliver a malicious payload or phish for credentials. The document body, though heavily obfuscated, suggests a lure related to smart bracelets, aligning with common social engineering tactics.

Machine Learning

Nyx PDF Classifier malicious score 0.9992

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
QR-code redirect lure medium SE_QR_LURE

Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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://golowaki.ru/strik?utm_term=how+do+you+charge+the+smart+bracelet+unleash+your+run PDF link annotation
- https://cdn-cms.f-static.net/uploads/4374188/normal_5fdc3e7ff1952.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4422386/normal_5ffe8e78c3b8b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4496602/normal_5feb983368377.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/b3f25e89-1978-4b27-9cd1-9bf9b1655cb4/is_ahsoka_coming_back_to_mandalorian.pdfIn PDF document text
- https://s3.amazonaws.com/fejenijovekozu/kikojuxokularuvegikajejo.pdfIn PDF document text
- https://s3.amazonaws.com/mefonevimimix/xomodurogibisunalifanuru.pdfIn PDF document text
- https://s3.amazonaws.com/tugabijenovili/pifinemut.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/51361fdb-5954-47ff-a5ab-a05b211c7bcb/eclipse_phase_2nd_edition_character_sheet.pdfIn PDF document text
- https://s3.amazonaws.com/libosokune/auto_mechanic_near_me_reviews.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/53e4dc60-c2b3-406a-bd7f-1eba347d6f4c/sopexemamixewogi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/49dfc1f6-09c2-4d6b-bc6e-792be56d2d89/89098575181.pdfIn PDF document text
- https://s3.amazonaws.com/wifukedot/33875853401.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/82f45b73-cb52-4edd-b3ec-25becb12ba3d/linesavutumupifivalapun.pdfIn PDF document text
- https://s3.amazonaws.com/pafiganovavi/nipavigagukawivexutuw.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/73e621ad-55a0-4e6c-82c2-bc8e4f640f31/honda_em650_generator_owners_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dda3fb31-8721-4987-b5cc-396f98fcdb94/kunkuri_weather_report_today.pdfIn PDF document text
- https://s3.amazonaws.com/gonima/armor_of_god_priscilla_shirer.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8d1a62f2-2f5f-4928-9470-d06c61647a7a/37454177294.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a837ae4c-648a-4c79-b4be-2e6f5d5a30c2/23210052911.pdfIn PDF document text
- https://s3.amazonaws.com/bewibiwat/can_you_get_a_tax_break_for_home_improvements.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 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ed5b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED5B	5484 bytes
SHA-256: `9511bda6f155a4ee13517d391f6a87708201d08b8690e4fab46a0ba8dff9eec2`
`font_01_sfnt_off0000ffe6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFFE6	4120 bytes
SHA-256: `645fde924ac789a78787afc4ff8fa19977be534e83ac58d6f80fd8432c29050b`
`font_02_sfnt_off00010ad8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10AD8	11748 bytes
SHA-256: `1ec1a3fd3b02efb52de88cbcdbbde43df3cf5c54b06140d8a415f5d566dda017`
`font_03_sfnt_off000131d9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x131D9	16036 bytes
SHA-256: `35d3440dae1ebc896564e4e6f70ea95aa3a30a1ac603c7fffbb21b68b8b72e2f`
`font_04_sfnt_off00014643.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14643	4324 bytes
SHA-256: `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`

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