Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb7ed39afb4b34df…

MALICIOUS

PDF

76.5 KB Created: 2021-03-31 16:50:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 172cdf75dbe286c754d9cf808b6f811a SHA-1: aaacc3d54223be0516625e1abeb9c58f4c6eab21 SHA-256: eb7ed39afb4b34df1b9aad0f101a3f488320efb350ada62cbb4abc980d36f466
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to 'soxebez.ru', which is flagged as suspicious. The PDF structure and embedded content suggest it's designed to trick users into visiting this external link, likely as part of a phishing or malware delivery scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://soxebez.ru/123?utm_term=abbey+road+2019
    • https://cdn-cms.f-static.net/uploads/4369153/normal_60265fce214ab.pdf
    • http://pobigajik.22web.org/how_to_install_badger_900_garbage_disposal.pdf
    • https://static.s123-cdn-static.com/uploads/4410717/normal_5fcd5735eda0c.pdf
    • https://cdn-cms.f-static.net/uploads/4384142/normal_60257293bb6d1.pdf
    • http://xisalokowifob.22web.org/connected_mcgraw_hill_wonders_student_login.pdf
    • https://cdn-cms.f-static.net/uploads/4368218/normal_5fe98be303fc7.pdf
    • https://cdn-cms.f-static.net/uploads/4459058/normal_60559d693fa6b.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/b85ae5ee-b950-4350-8334-972e27c0398c/76988699827.pdf
    • https://uploads.strikinglycdn.com/files/60175061-b6e7-4810-9695-90ece47f6812/warcraft_3_reign_of_chaos_cd_key_2019.pdf
    • https://uploads.strikinglycdn.com/files/2593c253-fff2-4620-aff9-83d38fc63627/24656706278.pdf
    • https://s3.amazonaws.com/nalifij/bad_time_simulator_apk.pdf
    • https://uploads.strikinglycdn.com/files/2972927a-37db-44f9-8710-29930aad84d6/how_to_install_a_stackable_washer_and_dryer_in_a_tight_space.pdf
    • https://s3.amazonaws.com/retisovojor/how_to_pair_sony_bluetooth_speaker_with_iphone.pdf
    • https://uploads.strikinglycdn.com/files/e6cc7593-2a2d-4eba-a932-f292a4a8e58a/small_business_ideas_to_start_from_home_in_india.pdf
    • https://uploads.strikinglycdn.com/files/e2f31cc7-d471-469d-9beb-49d4b75b889c/forgotten_realms_dark_elf_names.pdf
    • https://s3.amazonaws.com/risalenefazozo/scott_pilgrim_vs_the_world_game_complete_edition_switch.pdf
    • https://uploads.strikinglycdn.com/files/2f510dc8-30ab-4fad-b699-b4f323fdb3be/80998743713.pdf
    • http://jasumubi.rf.gd/11710867401.pdf
    • http://wasaxotudulolo.epizy.com/free_menu_borders_templates.pdf
    • https://uploads.strikinglycdn.com/files/d327b807-0140-4bd0-a240-e5edfaefd49c/xaliwixutasaz.pdf
    • https://uploads.strikinglycdn.com/files/483299c1-befb-4ab6-8887-c00901084749/83519449049.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee3a.bin
eae4e459140b758c8ae82ae32c46974f6a04786a914316c6d289766ad994f05b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE3A 5320 bytes
font_01_sfnt_off00010065.bin
936bd59fcd18f07628b7d419294084224c495c3bd34a4e78ee876d9064af8da8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10065 10660 bytes

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