Malicious PDF — malware analysis report

Static analysis result for SHA-256 2302f1ec95b20325…

MALICIOUS

PDF

83.7 KB Created: 2020-12-18 02:39:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 656d671a4a7e15e50831aa5f12c2657e SHA-1: 289a0aecdce1bd1df911123da2b9a1c1721cfa16 SHA-256: 2302f1ec95b203251b2758d71e3a23a1fb0a9bd889f66f8ca087dce59a320908
116 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document that contains an embedded URL leading to a suspicious domain, identified by ClamAV as a phishing trojan. The heuristic 'SE_ENABLE_LURE' indicates the document likely contains content designed to trick the user into taking an action, such as enabling macros or following a link. The presence of an external URI and the ML classifier's high confidence further support a malicious intent, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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://traffset.ru/123?utm_term=13+reasons+why+tyler+shooting PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5deeea2-44bc-410a-966f-4beed5eca108/donut_country_trophy_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc15943ea4a794d56482977/t/5fc2eac261e25426e198562a/1606609603727/how_long_is_.3m_to_inches.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f33f2cf09257bd6c4f7e/t/5fc2984bfa04221c71747d5a/1606588493270/7506899258.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d646835d-0d1d-4b61-8ccb-791037a70438/duvofovisisorujobadixef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5d053f9-34eb-4d09-933b-aa4aa6f1f3d0/tcnj_lesson_plan_format.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2c58fa13a450bab004512/t/5fc8582d46ef2e08cbb300e1/1606965294588/94853948156.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc78455a4d75e5252f52636/t/5fcc836c0ab5d62febebbb34/1607238508905/little_big_city_2_hack_mod_apk_revdl.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcee117941bd0096f259d1f/t/5fd1ec79b1f69267715a5635/1607593082137/cooking_master_boy_online_stream.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16cb69b6-88ad-41fd-a19b-997418b4e1db/vapekonesimoregiju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85cb2e5d-5c56-440f-bd1a-7f9ac99b34b8/56514167612.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6c7ac0e-7b7a-4377-85e9-6d6e313274a2/biome_finder_for_minecraft_ps4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/933d06c9-1f69-47fa-9f4c-9afb536cb603/phim_han_quoc_hay_nhat_2015.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc37eeb104edf1d779169b0/t/5fc7d03b3e96977c29c64d00/1606930493905/advertising_campaign_objectives_examples.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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.

FilenameKindSourceSize
font_00_sfnt_off0000d475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD475 6712 bytes
SHA-256: 9f6b8394e9dc1b53db1d16e1b0f363bd2b59f32214daa11cec62bdefdff73e23
font_01_sfnt_off0000e567.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE567 5260 bytes
SHA-256: 7ea60f96f6690d3798aa6eeb8c5d34740c58ce8c2e145c99a2e15a6781cbfe56
font_02_sfnt_off0000f759.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF759 3048 bytes
SHA-256: b08e27864ce8c7c45d3fde5d9442b10f522331b9657b7ffd7ded30d7f91c26eb
font_03_sfnt_off000103d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103D5 11148 bytes
SHA-256: 63ae1454048d88d4350810a3db72dc6dbaf55f9d4425a87710f1cef258bfaa5a
font_04_sfnt_off00012a05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A05 16696 bytes
SHA-256: 5122946acabefe6a5d9629f2eca55af0d66b2242e6193afc6bb625073a069e06

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