Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f0badb4afa37659…

MALICIOUS

PDF

75.1 KB Created: 2021-03-22 21:14:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a9ed3125ee60fc2a19a5002314f88e9 SHA-1: 995385c3d030f78a35ab4181c4c41369f3205a34 SHA-256: 2f0badb4afa376592b1dc47ca399e08a6b284e33c025d1a367373b4571027fbc
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to host a phishing page or download further malware. The document body, though heavily obfuscated, appears to reference a product, suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://resalured.ru/strik?utm_term=defiant+180-degree+motion+outdoor+security+light
    • https://cdn.sqhk.co/gukisafuw/8VgeheW/zaxavunu.pdf
    • http://lexamopelezun.mywebcommunity.org/kalyani_publishers_botany_books_download.pdf
    • https://cdn.sqhk.co/ketusugedi/Dfja0gd/85270518437.pdf
    • https://cdn.sqhk.co/wisewuguv/cvOgf0q/74523365626.pdf
    • http://dedaruk.scienceontheweb.net/gigatowovimonipefowije.pdf
    • http://mujabelor.mywebcommunity.org/how_to_sync_jbl_flip_2.pdf
    • http://fonixeguga.mywebcommunity.org/bin_sachivalay_clerk_book.pdf
    • https://cdn.sqhk.co/bebiwamulanu/gTgffjh/binimox.pdf
    • http://saporik.scienceontheweb.net/22809434742.pdf
    • http://rewokujow.scienceontheweb.net/lozosozirokisoderupa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xilavivugup.epizy.com/24966877855.pdf
    • http://jigikox.rf.gd/honeywell_rpls740b_3_way.pdf
    • http://kopepuxuki.epizy.com/libebupuwogafuro.pdf
    • https://s3.amazonaws.com/zobuwubedak/messaging_apps_for_pc_and_android.pdf
    • http://gamotaganewo.epizy.com/ruzifiwab.pdf
    • http://fefekug.rf.gd/basketball_world_cup_format.pdf
    • http://lepebelezoselob.rf.gd/chrome_app_apkmonk.pdf
    • https://s3.amazonaws.com/rabewiruzitewa/kuninibixul.pdf
    • http://wegijadisi.rf.gd/acquisitions_incorporated_dnd_5e.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce76.bin
e554859ba284f18ab6605a39594c9cf829e0b0258f7021f47a6e952d3c5e6dba
pdf-font-stream PDF embedded font (sfnt) at offset 0xCE76 5956 bytes
font_01_sfnt_off0000e2ae.bin
b851fcd0b84d59ed830831a290db91b398f8441dd412a3ab3df3205210333988
pdf-font-stream PDF embedded font (sfnt) at offset 0xE2AE 10652 bytes
font_02_sfnt_off0001073f.bin
73bb1f519e29941fc98367ae33a8b679223d41029fbf73fb5c585da9ec8c2502
pdf-font-stream PDF embedded font (sfnt) at offset 0x1073F 16204 bytes