Malicious PDF — malware analysis report

Static analysis result for SHA-256 1202c65a9acf5341…

MALICIOUS

PDF

76.5 KB Created: 2021-02-22 20:09:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 0301cab24c1210bf74a9fea2c9c97231 SHA-1: 98f806ee06331f92c389f3b420824cfd35414db3 SHA-256: 1202c65a9acf5341045e48fcf66e56adfe9b839bf9989da818f0c7ff20507197
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with one prominent URL pointing to a search result for game-related content, suggesting a phishing or redirection attempt. ClamAV and an ML classifier also flagged this file as malicious, specifically as a phishing trojan. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a malicious document designed to lead users to potentially harmful sites.

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jacksth.ru/wix?keyword=call+of+duty+world+at+war+zombies+apkpure PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4451757/normal_5fc80b3968b62.pdfIn PDF document text
    • https://cdn.sqhk.co/xiwapusumoge/fHjaZlR/8152650005.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/rpDgdpW/3631464855.pdfIn PDF document text
    • https://cdn.sqhk.co/wodaximewule/uhejcM8/pixel_10_q_icon_pack_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366389/normal_600b21851c371.pdfIn PDF document text
    • https://cdn.sqhk.co/badiwugaleko/ngdjahd/87163750339.pdfIn PDF document text
    • https://cdn.sqhk.co/vozofugova/jbjeiiL/redstone_builder_for_minecraft_pe_mod_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496605/normal_5ff1addbcdc85.pdfIn PDF document text
    • https://tavovoxiwazufaj.weebly.com/uploads/1/3/5/3/135325502/daluneko.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370077/normal_5fe10d956d8cf.pdfIn PDF document text
    • https://cdn.sqhk.co/rijomawonuj/uq3jfie/dimori.pdfIn PDF document text
    • https://relabibede.weebly.com/uploads/1/3/2/8/132816075/4100528.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369782/normal_60118a56d4b2e.pdfIn PDF document text
    • https://cdn.sqhk.co/xenotami/hUjeihn/new_best_quotes_in_urdu_2020.pdfIn PDF document text
    • https://voxudipuxun.weebly.com/uploads/1/3/5/3/135319737/sujamezuruvezinav.pdfIn PDF document text
    • https://cdn.sqhk.co/vilevefe/IUggieB/vp_racing_fuel_cans_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/wobuwozavenu/iiaNlgh/how_to_add_funny_sounds_on_tiktok.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/jivamubug/vehicle_authorization_letter_format.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/9598109090.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/71412707011.pdfIn PDF document text
    • https://s3.amazonaws.com/xomudufe/tft_cheat_sheet_patch_9._18.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/mevus.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5A 5540 bytes
SHA-256: 6ef43246bc048895e08d96ec95e4b244acb827853d9eacb3f2c9e40ba461b3e4
font_01_sfnt_off00010138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10138 10148 bytes
SHA-256: 37c8f2a0b6c8f09bd0c8f0bff0e8d5f83d1d213f348385efc447c315ec1cb13f

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