Malicious PDF — malware analysis report

Static analysis result for SHA-256 d56536715a6e2771…

MALICIOUS

PDF

293.2 KB Created: 2021-03-18 13:06:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ff2551d64fa9b66b668e2e2150fb351 SHA-1: e6ec344e32cdac53618b79b09faa320c77c26d58 SHA-256: d56536715a6e27715d64235143f083b1ae399311318c2df28f7b9fa71b47e21e
96 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 high likelihood of malicious intent. It contains an embedded URI pointing to 'zajinet.ru', which is likely used to redirect the user to a phishing or malware distribution site. The document body is heavily obfuscated, but the presence of the external URI and the overall verdict strongly suggest a phishing or credential harvesting attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://zajinet.ru/wix?keyword=ragnarok+mobile+eternal+love+assassin+dagger+build
    • https://cdn.sqhk.co/wenoxavawo/ihaNhhe/66068206948.pdf
    • https://cdn.sqhk.co/zezetemirag/ggcNib5/mighty_minutes_40_clap_a_friends_name.pdf
    • https://cdn.sqhk.co/kosadara/giiZjg7/kesadejetu.pdf
    • https://cdn.sqhk.co/kesusevuzep/hjibiia/sumolu.pdf
    • https://cdn.sqhk.co/lipebefaje/tjgjjia/galaxy_attack_alien_shooter_hack_mod.pdf
    • https://cdn.sqhk.co/divojimo/AghZRhf/kelujakiwotuf.pdf
    • https://cdn.sqhk.co/jomutepe/Lyfajbm/clep_test_college_mathematics_study_guides.pdf
    • https://cdn.sqhk.co/fikalibumi/bihgc0k/2013_chevy_spark_repair_manual.pdf
    • https://cdn.sqhk.co/wijelukifap/fFgegh6/health_food_and_supplement_stores_near_me.pdf
    • https://cdn.sqhk.co/zirixegip/uu1jeje/extreme_formula_car_top_speed_racing_games_online.pdf
    • https://cdn.sqhk.co/zitiwofiru/Nhehjja/gogo_live_tv_streaming.pdf
    • https://cdn.sqhk.co/mamidusidozu/ghjgihj/moto_traffic_race_2_mod_apk_hack_download.pdf
    • https://cdn.sqhk.co/porosobof/iS6jfv0/maxis_match_cc_male_clothes.pdf
    • https://cdn.sqhk.co/kojagopomon/h0QghWW/vugegifug.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/4ac94540-483d-47d5-a805-e9974c277dfe/is_the_irishman_and_i_heard_you_paint_houses_the_same_book.pdf
    • https://uploads.strikinglycdn.com/files/e131cc96-f240-454f-926a-d301dd89f2ad/nivobuwesatafajirikalawa.pdf
    • https://83372c7a-1065-4b07-8284-b64562b46e84.filesusr.com/ugd/035489_665591832c034ac98a41419461a80671.pdf?index=true
    • https://69cf8a46-0d3d-4b71-8fd1-93df925da18e.filesusr.com/ugd/e4064d_53b9641e744d4d2f9dc60ead8907c435.pdf?index=true
    • https://c1cb471f-fc5c-4ef2-b3e1-4d0d0d09d135.filesusr.com/ugd/cc5b41_1c72d1317920437ba37837fdafb716ba.pdf?index=true
    • 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00044144.bin
c0a7981cbb9ea454a3d8c43a2ddaf613493954ed98a96b531ff5e2940a0e389f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44144 5416 bytes
font_01_sfnt_off000453a6.bin
fcbbc5aec86376c39e484849a83e37b042279c4c1ffaf54992d54a40ba7b68a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x453A6 15600 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.